| Cloud Object Storage |
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| Cloud Object Storage |
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| Product Introduction |
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| Product Documentation |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| Cloud Object Storage |
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| Copyright Notice |
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| ©2013-2024 Tencent Cloud. All rights reserved. |
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| Copyright in this document is exclusively owned by Tencent Cloud. You must not reproduce, modify, copy or distribute |
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| in any way, in whole or in part, the contents of this document without Tencent Cloud's the prior written consent. |
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| Trademark Notice |
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| All trademarks associated with Tencent Cloud and its services are owned by Tencent Cloud Computing (Beijing) |
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| Company Limited and its affiliated companies. Trademarks of third parties referred to in this document are owned by |
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| their respective proprietors. |
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| Service Statement |
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| This document is intended to provide users with general information about Tencent Cloud's products and services |
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| only and does not form part of Tencent Cloud's terms and conditions. Tencent Cloud's products or services are |
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| subject to change. Specific products and services and the standards applicable to them are exclusively provided for in |
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| Tencent Cloud's applicable terms and conditions. |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| Page 2 of 26 |
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| Cloud Object Storage |
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| Contents |
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| Product Introduction |
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| Overview |
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| Features |
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| Strengths |
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| Concepts |
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| Regions and Access Endpoints |
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| Specifications and Limits |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| Page 3 of 26 |
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| Cloud Object Storage |
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| Product Introduction |
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| Overview |
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| Last updated：2024-01-06 14:09:21 |
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| Cloud Object Storage (COS) is a powerful Tencent Cloud distributed storage service that features low costs and high |
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| scalability, reliability, and security. It enables you to store a massive number of files and view them on the cloud |
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| anytime. |
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| You can easily and quickly access COS via the console, APIs, SDKs, or tools to store and manage massive data. You |
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| can leverage COS's user-friendly web management interface to upload, download, and manage files in different |
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| formats. CDN nodes around the globe also boost your file download speed. |
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| Product Features |
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| COS provides both enterprises and individual users with a suite of features, including data management, remote |
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| disaster recovery, data access acceleration, and data processing for diverse use cases. For more information, see |
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| Features. |
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| Concepts |
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| This section describes key concepts that help you better understand COS. |
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| Bucket: A container for objects stored in COS. Each bucket can store an unlimited number of objects. |
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| Object: The basic unit of COS storage. It can be data in any format, such as image, document, audio, and video. |
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| Region: A physical location where data centers are hosted in Tencent Cloud. COS data is stored in the buckets in |
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| these regions. |
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| Endpoint: A COS endpoint used to access and download an object stored in a bucket. |
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| Storage class: A storage level that indicates how active objects are in COS. COS offers multiple storage classes, |
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| including MAZ_STANDARD, MAZ_STANDARD_IA, MAZ_INTELLIGENT TIERING, STANDARD, STANDARD_IA, |
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| INTELLIGENT TIERING, ARCHIVE, and DEEP ARCHIVE. Different storage classes are suitable for different use |
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| cases and have different attributes, such as object access frequency and access latency. |
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| Getting Started with COS |
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| Getting started |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| COS offers various tools and video tutorials to help you better understand and use its services. For more information, |
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| see Cloud Object Storage. |
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| How to use |
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| The table below describes different options available for you to get started with COS: |
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| Method |
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| Description |
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| Console |
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| The COS console is the easiest way to work with COS without using any code or programs |
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| COSBrowser |
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| Provides a user-friendly interface to easily upload and download objects and generate access |
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| URLs |
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| COSCMD |
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| Enables you to use simple commands to upload, download, and delete objects in batches |
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| APIs |
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| SDKs |
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| COS adopts XML APIs, which are lightweight, connectionless, and stateless. By calling XML |
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| APIs, you can send requests to and accept responses from COS directly over HTTP/HTTPS. |
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| Supports multiple mainstream programming languages including Android, C, C++, .NET, Go, |
| iOS, Java, JavaScript, Node.js, PHP, Python, and WeChat Mini Program |
| |
| How Is COS Billed? |
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| COS is billed on a pay-as-you-go basis by default. For more information, see Billing Overview. |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| Features |
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| Last updated：2024-01-06 14:09:14 |
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| COS offers the following features: |
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| Operations |
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| Feature |
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| Description |
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| Bucket operations |
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| With COS, you can create, query, delete, and empty buckets. For detailed directions, |
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| see Bucket Management. |
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| Object operations |
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| Storage classes: Currently, COS offers three object storage classes for different access |
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| frequencies and disaster recovery levels: MAZ_STANDARD, MAZ_STANDARD_IA, |
| INTELLIGENT_TIERING, STANDARD, STANDARD_IA, ARCHIVE, and DEEP |
| ARCHIVE. For more information, see Storage Class.Objects/folders: can be uploaded, |
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| queried, downloaded, copied, and deleted. For more information, see Object |
| Management. |
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| Data Management |
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| Feature |
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| Description |
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| Lifecycle |
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| Static website |
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| Inventory |
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| With COS, you can set lifecycle rules for objects to regularly perform automatic |
| deletion on an object or storage class transitioning. For more information, see |
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| Lifecycle Overview. |
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| You can configure a bucket to host a static website and access the static website |
| through the bucket's endpoint. For more information, see Static Website Hosting. |
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| COS allows you to configure an inventory task to regularly scan your bucket for |
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| specified objects or objects with the same prefix. You can perform these tasks |
| daily or weekly, and each task will output an inventory report, which is stored in the |
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| specified bucket as a CSV file. For more information, see Inventory Overview. |
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| Bucket tagging |
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| A bucket tag can be used for easier bucket grouping and management. You can |
| set, query, and delete tags for a specified bucket. For more information, see |
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| Bucket Tag Overview. |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| Cloud Object Storage |
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| Event notification |
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| Used in conjunction with the Serverless Cloud Function (SCF), COS can send you |
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| timely notifications about resource changes (such as when a new file has been |
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| uploaded or deleted). For more information, see Event Notifications. |
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| COS Select |
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| This feature uses Structured Query Language (SQL) statements to filter the |
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| objects stored in COS so as to extract specific objects and get desired data. With |
| COS Select, you can reduce the amount of data transferred by COS for lower |
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| costs and latency during data extraction. For more information, see SELECT |
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| Overview. |
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| Logging |
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| then stored in a destination bucket for better bucket management. For more |
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| This feature is used to log the access details of a source bucket; these logs are |
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| information, see Logging Overview. |
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| Number of object tags |
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| CSG |
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| This feature is designed to help group and manage objects in your bucket by |
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| adding a key-value pair as an object tag. An object tag consists of a `tagKey`, an |
| equal sign `=`, and a `tagValue`, for example, `group = IT`. You can set, query, and |
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| delete tags for a specified object. For more information, see Object Tagging |
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| Overview. |
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| Cloud Storage Gateway (CSG) is a hybrid cloud storage service provided by |
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| Tencent Cloud. You can configure a CSG instance for a bucket in COS, and then |
| the bucket can be mounted to any of your CVM instances as a storage device in |
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| the form of a network folder. For more information, see Setting CSG. |
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| Remote Disaster Recovery |
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| Feature |
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| Description |
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| Versioning |
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| Enabling versioning allows you to store multiple versions of an object in the same |
| bucket. You can query, delete, or restore the objects by version ID. Versioning |
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| enables you to recover data that was lost due to accidental deletion or application |
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| failure. For more information, see Versioning Overview. |
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| By configuring a cross-bucket replication rule, incremental objects can be |
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| Cross-bucket replication |
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| automatically and asynchronously replicated between buckets for disaster recovery |
| and data backup. For more information, see Cross-Bucket Replication Overview. |
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| Multi-AZ |
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| MAZ refers to the multi-AZ storage architecture offered by COS, which can provide |
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| IDC-level disaster recovery capabilities for your data. For more information, see |
| Overview of Multi-AZ Feature. |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| Page 7 of 26 |
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| Cloud Object Storage |
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| Data Security |
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| Feature |
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| Description |
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| Encryption |
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| COS can apply an object-level encryption policy to your data before it is written to |
| the disk, and automatically decrypt it when it is accessed. For more information, see |
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| Server-Side Encryption Overview and Bucket Encryption Overview. |
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| Hotlink protection |
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| COS supports configuring hotlink protection. You can configure a blocklist/allowlist |
| through the hotlink protection feature on the console to protect your data resources. |
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| For more information, see Hotlink Protection Practice. |
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| Access Management |
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| Feature |
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| Description |
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| Cross-Origin Access |
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| With COS, you can set HTML5 CORS configurations to enable access among |
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| different origins. COS can respond to CORS OPTIONS requests and return |
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| specified rules to the browser as configured by the developer. For detailed |
| directions, see Setting CORS. |
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| Origin-pull |
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| Bucket policy |
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| Access control |
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| COS allows you to set an origin-pull rule on your bucket so that it can pull data |
| from an external origin if the requested object does not exist in your bucket, or a |
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| specific request needs to be redirected. For more information, see Setting Origin- |
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| Pull. |
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| You can add a policy to a bucket to grant or deny an account or source IP (or IP |
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| range) access permission for a COS resource. For more information, see Adding |
| Bucket Policies. |
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| You can manage the access permissions for your buckets and objects by |
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| configuring an Access Control List (ACL). When receiving a resource request, |
| COS will check the ACL to determine whether the requester has the required |
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| access permission. For more information, see Basic Concepts of Access Control |
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| and Granting Sub-accounts Access to COS. |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| Cloud Object Storage |
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| Access Speed |
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| Feature |
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| Description |
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| CDN Acceleration |
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| COS has integrated the CDN acceleration feature to download and distribute large |
| amounts of data from COS buckets. It is most useful in scenarios where the same |
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| data is downloaded repeatedly. For more information, see CDN Acceleration |
| Overview. |
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| Global acceleration |
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| The COS global acceleration feature can help you quickly access your buckets |
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| and improve your access success rate, further improving business stability as well |
| as the overall user experience. For more information, see Global Acceleration |
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| Overview. |
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| Single-connection |
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| bandwidth limit |
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| COS allows setting a bandwidth limit on uploads and downloads to ensure |
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| sufficient bandwidth for your other applications. For more information, see Single- |
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| Connection Bandwidth Limit. |
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| Batch Job Processing |
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| Feature |
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| Description |
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| Batch operation |
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| You can specify an operation to be performed on a specified list of objects in a |
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| bucket. This involves generating an inventory of objects through the inventory |
| feature to serve as the specified object list, or you can record the objects to be |
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| processed in a CSV file according to inventory file formatting requirements. Then, |
| COS will perform the specified batch operation on the objects in the inventory file. |
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| For more information, see Overview. |
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| Data Monitoring and alarms |
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| Feature |
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| Dashboard |
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| Description |
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| COS supports data monitoring, with which you can view the amount of data stored |
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| in different storage classes by different periods, as well as the trends. For more |
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| information, see Dashboard and Querying Monitoring Data. |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| Cloud Object Storage |
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| Setting alarm policies |
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| You can leverage the alarm policy feature of Cloud Monitor to set threshold- |
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| reaching alarms for COS monitoring metrics. An alarm policy must include the |
| policy name, policy type, trigger condition, alarm object, and alarm notification |
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| template. For more information, see Setting Alarm Polices. |
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| Data Processing |
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| Feature |
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| Description |
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| Image processing |
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| Media processing |
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| COS is integrated with Cloud Infinite professional integrated media solution to offer |
| various features such as image processing, moderation, and recognition. You can |
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| process media data through the upload and processing APIs of COS. For more |
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| information, see Image Processing Overview. In addition, COS supports image |
| advanced compression and blind watermarking. For more information, see |
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| Overview on Image Advanced Compression and Blind Watermarking Overview. |
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| Media processing is a multimedia file processing service provided by COS based |
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| on CI. It offers diverse features empowered by Tencent Cloud's cutting-edge AI |
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| technology, such as audio/video transcoding, video frame capturing, audio/video |
| splicing, video-to-animated image conversion, video metadata query, and intelligent |
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| thumbnail. For more information, see Media Processing Overview and Overview. |
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| File processing |
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| File processing is a processing service provided by COS based on CI for all formats |
| of files. Currently, it provides file hash calculation, file decompression and multi-file |
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| zipping capabilities. For details, see File Processing Overview. |
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| Document preview |
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| be previewed online directly without download. For more information, see Document |
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| Document preview is based on CI. After it is enabled, document files in buckets can |
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| Preview Overview. |
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| Smart audio is based on CI. After it is enabled, you can perform operations such as |
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| Smart audio |
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| text to speech, speech recognition, and audio noise reduction. For more |
| information, see Smart Audio Overview. |
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| Function calculation |
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| COS supports CDN Purge Cache for specified buckets. For more information, see |
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| Function Calculation. |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| Page 10 of 26 |
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| Cloud Object Storage |
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| Data Moderation |
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| Feature |
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| Description |
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| Content moderation |
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| The COS content moderation service intelligently moderates the multimedia content |
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| of images, videos, speeches, text, documents, and webpages. It helps you |
| effectively identify non-compliant content such as pornographic, vulgar, violent, |
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| terrorist, illegal, disgusting, and offensive information to avoid operational risks. For |
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| more information, see Content Moderation Overview. |
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| Application Integration |
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| Feature |
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| Description |
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| Integration with other Tencent Cloud |
| services |
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| Based on Serverless Cloud Function (SCF), COS provides database |
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| backup, message backup, log backup, log analysis, and data export |
| features. For more information, see Application Integration. |
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| Tools |
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| Feature |
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| Description |
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| Management tools |
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| COS provides a suite of tools such as COSBrowser, COSCMD, COSCLI, and COS |
| Migration to help manage and/or migrate data. For more information, see Tool |
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| Overview. |
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| APIs/SDKs |
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| Feature |
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| Description |
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| APIs and SDKs |
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| APIs: COS provides a rich set of APIs and API-specific documentation that |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| Page 11 of 26 |
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| Cloud Object Storage |
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| describes API usage, parameters, sample requests, responses, and error codes. For |
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| more information, see Operation List. |
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| SDKs: COS offers SDKs for various programming languages, including Android, C, |
| C++, .NET(C#), Flutter, Go, iOS, Java, JavaScript, Node.js, PHP, Python, and |
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| Weixin Mini Programs. For more information, see SDK Overview. |
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| Supported Protocols |
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| Feature |
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| Description |
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| Various protocols |
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| COS supports HTTP 1.0, HTTP 1.1, and QUIC |
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| transfer protocols. It also supports TLS 1.0, TLS 1.1, |
| and TLS 1.2 encryption protocols. To try the QUIC |
| protocol, contact us to add your account to the |
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| allowlist. |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| Page 12 of 26 |
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| Cloud Object Storage |
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| Strengths |
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| Last updated：2024-01-06 14:09:14 |
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| Stability and Durability |
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| COS stores data in a cross-infrastructure, multi-device, and redundant manner, provides remote disaster recovery |
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| and resource isolation capabilities for your data. It delivers an up to 99.9999999999% durability for each object, |
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| ensuring that your data is more durable than on other storage architectures. |
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| High Security and Reliability |
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| COS features hotlink protection that can block access requests from malicious sources. It supports SSL-based |
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| encrypted data transfer and allows you to control the read and write permissions of each individual file. With the aid of |
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| Tencent's attack defense system, it can effectively resist DDoS and CC attacks to ensure normal operations of your |
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| business. |
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| Optimal Cost Performance |
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| COS eliminates your need to purchase, deploy, and maintain traditional hardware devices, thereby reducing your Ops |
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| workload and hardware hosting costs. It supports on-demand and pay-as-you-go usage, so you do not need to pay for |
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| any reserved storage space in advance. Moreover, it can transition cold data through lifecycle management to further |
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| reduce the storage costs. |
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| Ease of Use |
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| COS provides graphical programs, command line tools, protocol tools, and other methods for you to perform batch |
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| operations on stored objects, making it easier for you to use. It also offers tools that can mount buckets locally, |
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| enabling you to directly operate on objects stored in COS just like in a local file system. |
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| Convenient Access |
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| COS provides a wealth of simple and reliable SDK access tools and a detailed RESTful API access guide, which can |
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| help you easily transfer data over the internet. It also offers seamless migration tools to migrate your business to the |
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| cloud with speed and ease, saving you from high migration and access costs. |
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| Service Integration |
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| COS can be integrated with other Tencent Cloud services, such as CDN, CI, audio/video transcoding, file preview, |
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| and other components, to provide a fully integrated solution for storage and processing. In addition, it can be used as |
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| a data pool in big data computing to provide data sources for big data analysis and computation. It can also be |
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| connected to SCF to automate event notification and processing. |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| Page 13 of 26 |
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| Cloud Object Storage |
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| Concepts |
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| Last updated：2024-01-06 14:09:14 |
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| Bucket |
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| A bucket is a carrier of objects, which can be considered as a "container" for storing objects. You can manage |
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| buckets and configure attributes for buckets through various methods such as the Tencent Cloud console, APIs, and |
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| SDKs. For example, you can set a bucket to be used for static website hosting or set access permission for a bucket. |
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| For more information, see Bucket Overview. |
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| Object |
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| An object is the basic unit of COS and is stored in a bucket just like a photo stored in an album. You can manage |
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| objects in different ways including Tencent Cloud console, APIs, and SDKs. An object is named in the format of |
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| <ObjectKey>. |
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| For more information, see Object Overview. |
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| APPID |
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| APPID is a fixed unique application ID automatically assigned to you after you sign up for a Tencent Cloud account. |
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| You can view your APPID on the Account Information page. |
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| APPID is usually used in bucket names. A complete bucket name consists of a custom string and APPID separated by |
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| hyphen, such as examplebucket-1250000000 , where 1250000000 is the APPID. |
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| UID |
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| APPID can also be used to generate temporary keys, specify bucket policies, or specify resources in CAM policy |
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| settings. In such cases, APPID is also referred to as UID, both of which have the same value. |
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| For more information, see Bucket Overview, Overview, and Resource Description Method. |
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| UIN |
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| A UIN is an account ID. It is fixed, unique, and in one-to-one correspondence to an APPID and can be viewed in |
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| Account Information. In COS, it can be used to generate temporary keys, specify bucket policies, or specify resources |
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| in CAM policy settings. In such cases, UIN and UID are used in the same way, but they have different prefixes. |
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| For more information, see Overview and Resource Description Method. |
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| ACL |
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| An access control list (ACL) is a resource-based access management option and describes an access permission. |
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| In COS, an ACL can be used to manage the access to buckets and objects. You can use it to grant other root |
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| accounts, sub-accounts, and user groups basic read and write permissions. |
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| For more information, see Basic Concepts of Access Control and ACL. |
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| ©2013-2022 Tencent Cloud. All rights reserved. |
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| Page 14 of 26 |
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| Cloud Object Storage |
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| CORS |
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| Cross-origin resource sharing (CORS) refers to HTTP requests where the origin of the resource that initiates the |
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| request is different from the origin of the destination resource. |
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| SecretKey |
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| SecretId and SecretKey , collectively referred to as the API key, are the security credential used for |
|
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| authentication when you access a TencentCloud API and can be viewed on the Manage API Key key. SecretKey |
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| is used to encrypt signature strings and verify them on the server. You can create multiple API keys for one APPID. |
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| SecretId |
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| SecretId and SecretKey , collectively referred to as the API key, are the security credential used for |
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| authentication when you access a TencentCloud API and can be viewed on the Manage API Key key. SecretId |
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| is used to identify the API caller. You can create multiple API keys for one APPID. |
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| Policy |
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| A policy consists of several elements and is used to describe specific information about authorization. For more |
|
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| information, see Overview. |
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| Public network downstream traffic |
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| Public network downstream traffic is the traffic generated by data transfer from COS to the client over the internet, |
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| including the traffic generated by downloading an object directly through an object link or by browsing an object at a |
|
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| static website endpoint. |
|
|
| CDN origin-pull traffic |
|
|
| CDN origin-pull traffic is the traffic generated by data transfer from COS to CDN edge node. |
|
|
| Default endpoint |
|
|
| The default endpoint is COS origin's domain name, which is automatically generated based on the bucket name and |
|
|
| region when you create a bucket. It's important to distinguish it from the default acceleration domain name. For more |
|
|
| information, see Overview. |
|
|
| Default CDN acceleration domain name |
|
|
| It is the domain name passing through CDN cache nodes, which is generated by default and you can choose to enable |
|
|
| or disable. For more information, see Overview. |
|
|
| Custom CDN acceleration domain name |
|
|
| You can bind for your bucket a custom domain name to CDN and access objects in your bucket using this domain |
|
|
| name. For more information, see Overview. |
|
|
| ©2013-2022 Tencent Cloud. All rights reserved. |
|
|
| Page 15 of 26 |
|
|
| Cloud Object Storage |
|
|
| Custom origin domain name |
|
|
| You can bind your own domain name as a custom endpoint to the bucket for access to the objects in it. For more |
|
|
| information, see Overview. |
|
|
| Data retrieval |
|
|
| Storage classes suitable for cold data include STANDARD_IA and ARCHIVE. To read or download data in |
| |
| STANDARD_IA, the backend needs to retrieve it first. ARCHIVED data cannot be read or downloaded until it is |
|
|
| restored to the STANDARD storage class. |
|
|
| MAZ |
|
|
| MAZ refers to the multi-AZ storage architecture provided by COS. Your data is distributed among multiple IDCs in a |
|
|
| region. When an IDC fails in extreme cases such as natural disasters or power outages, the multi-AZ storage |
|
|
| architecture can still provide stable and reliable storage services. |
|
|
| For more information, see Overview of Multi-AZ Feature. |
|
|
| Region |
|
|
| A region is a physical location where data centers are hosted on Tencent Cloud. COS data is stored in the buckets in |
|
|
| these regions. |
|
|
| For more information, see Regions and Access Endpoints. |
|
|
| ©2013-2022 Tencent Cloud. All rights reserved. |
|
|
| Page 16 of 26 |
|
|
| Cloud Object Storage |
|
|
| Regions and Access Endpoints |
|
|
| Last updated：2024-01-06 14:09:14 |
|
|
| Overview |
|
|
| A region is an area where a Tencent Cloud managed data center is deployed. COS data is stored in buckets in these |
|
|
| regions. You can use COS to store your data in multiple regions. In general, you are advised to create buckets in the |
|
|
| region closest to the location where your business is conducted. In this way, latency and costs can be reduced and |
|
|
| compliance requirements can be met. |
|
|
| For example, if your business is distributed in South China, creating buckets in the Guangzhou region can accelerate |
|
|
| the object upload and download speeds. |
|
|
| Default endpoint refers to the COS bucket’s default domain, which is automatically generated when the bucket is |
|
|
| created. Buckets residing in different regions have different default domains. To view the default domain, you can go to |
|
|
| the COS console, click the name of the desired bucket, click Overview, and find the Domain Information area. |
|
|
| Chinese mainland |
|
|
| Region |
|
|
| Chinese |
|
|
| mainland |
|
|
| Public |
| cloud |
| regions |
|
|
| Region |
| Abbreviation |
|
|
| Default Endpoint |
| (Upload/Download/Management) |
|
|
| Beijing Zone 1 |
| (sold out) |
|
|
| ap-beijing-1 |
|
|
| <BucketName-APPID>.cos.ap-beijing- |
| 1.myqcloud.com |
|
|
| Beijing |
|
|
| ap-beijing |
|
|
| Nanjing |
|
|
| ap-nanjing |
|
|
| Shanghai |
|
|
| ap-shanghai |
|
|
| Guangzhou |
|
|
| ap-guangzhou |
|
|
| Chengdu |
|
|
| ap-chengdu |
|
|
| Chongqing |
|
|
| ap-chongqing |
|
|
| <BucketName-APPID>.cos.ap- |
| beijing.myqcloud.com |
|
|
| <BucketName-APPID>.cos.ap- |
|
|
| nanjing.myqcloud.com |
|
|
| <BucketName-APPID>.cos.ap- |
|
|
| shanghai.myqcloud.com |
|
|
| <BucketName-APPID>.cos.ap- |
| guangzhou.myqcloud.com |
|
|
| <BucketName-APPID>.cos.ap- |
| chengdu.myqcloud.com |
|
|
| <BucketName-APPID>.cos.ap- |
| chongqing.myqcloud.com |
|
|
| ©2013-2022 Tencent Cloud. All rights reserved. |
|
|
| Page 17 of 26 |
|
|
| Cloud Object Storage |
|
|
| Outside Chinese mainland |
|
|
| Region |
|
|
| Asia |
| Pacific |
|
|
| North |
| America |
|
|
| South |
| America |
|
|
| Europe |
|
|
| Region |
|
|
| Default Endpoint |
|
|
| Abbreviation |
|
|
| (Upload/Download/Management) |
|
|
| Hong Kong |
|
|
| ap- |
|
|
| <BucketName-APPID>.cos.ap- |
|
|
| (China) |
|
|
| hongkong |
|
|
| hongkong.myqcloud.com |
|
|
| Singapore |
|
|
| ap- |
| singapore |
|
|
| <BucketName-APPID>.cos.ap- |
| singapore.myqcloud.com |
|
|
| Mumbai |
|
|
| ap-mumbai |
|
|
| Jakarta |
|
|
| ap-jakarta |
|
|
| Seoul |
|
|
| ap-seoul |
|
|
| Public |
| cloud |
|
|
| regions |
|
|
| Bangkok |
|
|
| ap-bangkok |
|
|
| Tokyo |
|
|
| ap-tokyo |
|
|
| <BucketName-APPID>.cos.ap- |
| mumbai.myqcloud.com |
|
|
| <BucketName-APPID>.cos.ap- |
| jakarta.myqcloud.com |
|
|
| <BucketName-APPID>.cos.ap- |
| seoul.myqcloud.com |
|
|
| <BucketName-APPID>.cos.ap- |
| bangkok.myqcloud.com |
|
|
| <BucketName-APPID>.cos.ap- |
|
|
| tokyo.myqcloud.com |
|
|
| Silicon Valley |
|
|
| na- |
|
|
| <BucketName-APPID>.cos.na- |
|
|
| (US West) |
|
|
| siliconvalley |
|
|
| siliconvalley.myqcloud.com |
|
|
| Virginia (US |
| East) |
|
|
| na-ashburn |
|
|
| <BucketName-APPID>.cos.na- |
| ashburn.myqcloud.com |
|
|
| Toronto |
|
|
| na-toronto |
|
|
| São Paulo |
|
|
| sa-saopaulo |
|
|
| Frankfurt |
|
|
| eu-frankfurt |
|
|
| <BucketName-APPID>.cos.na- |
| toronto.myqcloud.com |
|
|
| <BucketName-APPID>.cos.sa- |
| saopaulo.myqcloud.com |
|
|
| <BucketName-APPID>.cos.eu- |
| frankfurt.myqcloud.com |
|
|
| Global acceleration endpoint |
|
|
| ©2013-2022 Tencent Cloud. All rights reserved. |
|
|
| Page 18 of 26 |
|
|
| Cloud Object Storage |
|
|
| A global acceleration endpoint is formatted as <BucketName-APPID>. cos.accelerate.myqcloud.com . For |
|
|
| more information about global acceleration endpoints and the use cases, see Overview. |
|
|
| Example |
|
|
| Assume that you have logged in to the COS console as the root account ( APPID is 1250000000 ) and created a |
|
|
| bucket named examplebucket in the Guangzhou region, the default endpoint of the bucket will be: |
|
|
| examplebucket-1250000000.cos.ap-guangzhou.myqcloud.com |
|
|
| Note: |
|
|
| ©2013-2022 Tencent Cloud. All rights reserved. |
|
|
| Page 19 of 26 |
|
|
| Cloud Object Storage |
|
|
| examplebucket-1250000000: indicates that the bucket is owned by the user whose APPID is 1250000000 . |
|
|
| APPID is a fixed and unique ID assigned by the system when you successfully applied for the Tencent Cloud |
|
|
| account. You can view it at Account Information. |
|
|
| cos: Cloud Object Storage (COS) |
|
|
| ap-guangzhou: abbreviation of the bucket region |
|
|
| myqcloud.com: indicates Tencent Cloud domain (fixed) |
|
|
| If you store an image (picture.jpg) to the created bucket, the access URL of the image will be: |
|
|
| examplebucket-1250000000.cos.ap-guangzhou.myqcloud.com/picture.jpg |
|
|
| ©2013-2022 Tencent Cloud. All rights reserved. |
|
|
| Page 20 of 26 |
|
|
| Cloud Object Storage |
|
|
| Note: |
|
|
| If you have set the access permission of your image to public read and private write, you can copy the image |
|
|
| access URL and paste it in the browser to view the image details. |
|
|
| Private Network and Public Network Access |
|
|
| If an intra-region Cloud Virtual Machine (CVM) instance accesses COS using the default domain, data will be |
|
|
| transferred over a private network by default. In this case, data uploads and downloads will generate private network |
|
|
| traffic, but this traffic will not be billed. However, note that you will still be charged for the number of requests. |
|
|
| Tencent Cloud COS adopts intelligent resolution for COS endpoints. In this way, the optimal linkage can be provided |
|
|
| for you to access COS with different ISPs. |
|
|
| If you deploy a service in Tencent Cloud to access COS, intra-region access requests will be automatically directed to |
|
|
| a private network address. Currently, cross-region requests do not support private network access and will be |
|
|
| resolved to a public network address by default. If you have requests for cross-region private network access, submit |
|
|
| a ticket. |
|
|
| For more information about private network and public network access, see Request Creation Overview. |
|
|
| ©2013-2022 Tencent Cloud. All rights reserved. |
|
|
| Page 21 of 26 |
|
|
| Cloud Object Storage |
|
|
| Specifications and Limits |
|
|
| Last updated：2024-01-06 14:09:14 |
|
|
| Category |
|
|
| Specifications and Limits |
|
|
| Description |
|
|
| Read/Write requests: 30,000 QPS for each bucket |
| in a public cloud region in the Chinese mainland, or |
| 3,000 QPS for each bucket in other regions. |
|
|
| Requests to list objects/historical versions/in- |
| progress multipart upload tasks in a bucket: 1,000 |
| QPS for each bucket in all regions by default. |
|
|
| Bucket creating/deleting/listing requests: 50 QPS |
| for each `APPID` in all regions. |
|
|
| Data retrieval requests: 100 QPS for each bucket in |
| all regions. |
|
|
| One-time inventory job creating requests: 1 QPS for |
| each bucket in all regions. |
|
|
| Single-file upload/deletion/listing requests for traffic |
|
|
| throttling: 50 QPS. |
|
|
| Single-file download requests for traffic throttling: |
|
|
| 1,000 QPS.To raise your QPS threshold, see |
| Request Rate and Performance Optimization. |
|
|
| 15 Gbps of upstream and downstream bandwidth |
| for each bucket in a public cloud region in the |
| Chinese mainland, or 10 Gbps for each bucket in |
|
|
| other regions. If this threshold is reached, traffic |
| throttling will be requested. To raise the threshold, |
| submit a ticket. |
|
|
| Billing limits:There is no limit on storage duration or |
| object size.For more information about the billing of |
|
|
| STANDARD, see Product Pricing. |
|
|
| QPS |
|
|
| Limits |
|
|
| Bandwidth |
|
|
| Limits |
|
|
| Storage |
| class |
|
|
| MAZ_STANDARD/STANDARD limits |
| |
| MAZ_STANDARD_IA/STANDARD_IA |
| limits |
|
|
| Billing limits: |
| An object stored less than 30 days is billed as 30 |
| days. |
|
|
| ©2013-2022 Tencent Cloud. All rights reserved. |
|
|
| Page 22 of 26 |
|
|
| MAZ_INTELLIGENT |
| TIERING/INTELLIGENT TIERING |
| limits |
| |
| ARCHIVE limits |
| |
| DEEP ARCHIVE limits |
| |
| Bucket |
| |
| Limits |
| |
| Cloud Object Storage |
| |
| An object smaller than 64 KB is billed as 64 KB. If |
| the object size is greater than or equal to 64 KB, it is |
| |
| billed based on its actual size.For more information |
| about the billing of STANDARD_IA, see Product |
| Billing. |
|
|
| Billing limits: An object smaller than 64 KB is always |
|
|
| stored in the frequent access tier. Objects are billed |
| based on their actual sizes. For INTELLIGENT |
| TIERING pricing, see Pricing | Cloud Object |
| Storage. |
|
|
| Billing limits: |
|
|
| An object stored less than 90 days is billed as 90 |
| days. |
|
|
| An object smaller than 64 KB is billed as 64 KB. If |
|
|
| the object size is greater than or equal to 64 KB, it |
| will be billed based on its actual size.For more |
| information about the billing of ARCHIVE, see |
|
|
| Product Pricing. |
|
|
| Billing limits: |
|
|
| An object stored less than 180 days is billed as 180 |
| days. |
|
|
| An object smaller than 64 KB is billed as 64 KB. If |
| the object size is greater than or equal to 64 KB, it |
| will be billed based on its actual size.For more |
| information about the billing of DEEP ARCHIVE, see |
|
|
| Product Pricing. |
|
|
| Once a bucket is created, you cannot modify its |
| name or region. |
|
|
| Buckets must have unique names under the same |
| account and cannot be renamed. |
|
|
| A bucket name cannot start with a hyphen and can |
| contain only lowercase letters, digits, and hyphens. |
| The length of a bucket name is limited by the |
| number of characters in the region abbreviation as |
| described in Regions and Access Endpoints and |
| `APPID`. A complete request domain name can |
|
|
| contain up to 60 characters. |
|
|
| ©2013-2022 Tencent Cloud. All rights reserved. |
|
|
| Page 23 of 26 |
|
|
| Cloud Object Storage |
|
|
| Number of buckets |
|
|
| Number of objects |
|
|
| Each root account can have up to 200 buckets by |
| default. |
|
|
| There is no limit on the number of objects stored in |
| each bucket. |
|
|
| Number of bucket tags |
|
|
| Each bucket can have up to 50 different tags. |
|
|
| Object |
|
|
| Limits |
|
|
| Upload |
|
|
| An object key can be 1–850 bytes. For more |
| information, see Object Overview. |
|
|
| A single object to be uploaded in the console can be |
| up to 512 GB. |
|
|
| A single object to be uploaded through an API/SDK |
| can be up to 48.82 TB (50,000 GB). |
|
|
| Upload API specifications: |
| Simple upload: A single object can be up to 5 GB. |
| For more information, see Simple Upload. |
|
|
| Multipart upload: A single object can be up to 48.82 |
| TB. The part size can be 1 MB–5 GB, but the last |
| part can be smaller than 1 MB. There can be 1– |
| 10,000 parts. For more information, see Multipart |
| Upload. |
|
|
| Currently, for a bucket with MAZ configuration |
| enabled, objects can be uploaded to MAZ storage |
| classes (MAZ_STANDARD or |
| MAZ_STANDARD_IA). If intelligent tiering |
| configuration is also enabled for the bucket, objects |
| can also be uploaded to the MAZ_INTELLIGENT |
| TIERING storage class. |
|
|
| You can only upload objects to the INTELLIGENT |
| TIERING storage class if you have enabled |
| INTELLIGENT TIERING for the bucket. How |
| objects are transitioned between tiers depends on |
| the INTELLIGENT TIERING configuration. |
|
|
| Replication |
|
|
| Objects can be replicated within and across regions |
| under the same account. |
|
|
| ©2013-2022 Tencent Cloud. All rights reserved. |
|
|
| Page 24 of 26 |
|
|
| Cloud Object Storage |
|
|
| Intra-region replication is free of charge, while |
| cross-region replication incurs traffic fees. For more |
|
|
| information, see Pricing | Cloud Object Storage. |
|
|
| Copy APIs specifications: |
| Simple copy: A single object to be copied can be up |
| to 5 GB. For more information, see Simple Copy. |
|
|
| If an object is larger than 5 GB, you must use |
|
|
| multipart copy. A single object to be copied can be |
| up to 48.82 TB. For more information, see Multipart |
| Copy. |
|
|
| Objects in MAZ buckets cannot be replicated to an |
| OAZ bucket. |
|
|
| Currently, you cannot copy STANDARD, |
| STANDARD_IA, or INTELLIGENT TIERING |
| objects to the INTELLIGENT TIERING storage |
| class. |
| |
| Up to 1,000 objects can be deleted in a single |
| request through APIs/SDKs. |
| |
| Batch deletion |
| |
| Number of object tags |
| |
| Each object can have up to 10 different tags. |
| |
| Access |
| policy |
| |
| Number of ACLs |
| |
| Each root account (APPID) can have up to 1,000 |
| bucket ACLs. |
| |
| Number of rules |
| |
| Each bucket can have up to 1,000 lifecycle rules. |
| |
| Lifecycle |
| |
| Storage class transition |
| |
| STANDARD to STANDARD_IA: At least 1 |
| day.STANDARD/STANDARD_IA to |
| ARCHIVE/DEEP ARCHIVE: At least 1 day.Note: 1. |
| |
| Objects in the MAZ_STANDARD or |
| MAZ_STANDARD_IA storage class cannot be |
| transitioned to the STANDARD, STANDARD_IA, or |
| ARCHIVE storage class.2. Objects smaller than 64 |
| KB will not be transitioned. |
| |
| Expired object deletion |
| |
| STANDARD/STANDARD_IA/ARCHIVE: At least 1 |
| day. |
|
|
| SDKs |
|
|
| 14 SDKs: Android, C, C++, .NET, Flutter, Go, iOS, |
| Java, JavaScript, Node.js, PHP, Python, React |
| Native, WeChat Mini Program. |
|
|
| ©2013-2022 Tencent Cloud. All rights reserved. |
|
|
| Page 25 of 26 |
|
|
| API reserved fields |
|
|
| Cloud Object Storage |
|
|
| All API fields involved in the API documentation are |
|
|
| COS reserved fields, including: acl, uploads, policy, |
| cors, delete, versions, location, referer, lifecycle, |
| versioning, notification, replication, website, logging, |
| tagging, accelerate, domain, inventory, origin, |
| object-lock, live, encryption, intelligenttiering, |
| symlink. |
|
|
| ©2013-2022 Tencent Cloud. All rights reserved. |
|
|
| Page 26 of 26 |
|
|
|
|
