RAGEval
Collection
7 items • Updated
id stringlengths 1 25.2k ⌀ | title stringlengths 5 916 ⌀ | summary stringlengths 4 1.51k ⌀ | description stringlengths 2 32.8k ⌀ | solution stringlengths 2 32.8k ⌀ |
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KB10717 | LCM upgrade fails due to drive count mismatch | LCM SDD/HDD firmware and HBA firmware upgrade fail due to drive count mismatch | Scenario-1: Drive firmware upgrade fails leaving the node stuck in phoenix.
In the LCM leader's lcm_ops.out log entries, drive firmware upgrade operations may fail with entries pointing to a drive count mismatch, similar to:
2021-01-20 10:51:56 DEBUG: Phoenix: Drive count before 24 != after update 25
This is caused... | This issue is resolved in LCM-2.5. Please upgrade to LCM-2.5 or higher version - Release Notes | Life Cycle Manager Version 2.5 https://portal.nutanix.com/page/documents/details?targetId=Release-Notes-LCM:top-Release-Notes-LCM-v2_5.htmlIf you are using LCM for the upgrade at a dark site or a location without Internet ... |
KB8138 | Changing password policies for test Nutanix clusters | Changing password policies for test systems | *** INTERNAL **Below is the process for changing default password policies for internal Nutanix test/LAB systems - please do not share the steps with external customers or modify system files on external clusters over Webex | By default, password policies on Nutanix clusters are pretty restrictive. This is for use on a test/LAB system that allows for setting up less restrictive password policies.By default, our PE/PC used pam authentication. The policies are stored in two files under /etc/pam.d which are password-auth and system-authThe fil... |
KB13618 | Newly deployed clusters does not appear in the drop down when deploying VMs using VM Templates in Prism Central | A recently deployed PE cluster registered to PC does not appear in the cluster list while deploying a VM using VM templates. | A recently deployed PE cluster registered to PC don't appear in the cluster list while deploying a VM using VM templates.This is related to ENG-425348, where a Prism Central clusters/list v3 API call does not return entire list of clusters.Steps to Verify:1. Verify that none of the nodes have the cluster map cache by r... | Current workaround is to restart aplos on all PCVMs with the following command
allssh "genesis stop aplos aplos_engine"; cluster start
|
KB1250 | Upgrading with CVM fails to boot with missing /.nutanix_active_svm_partition | Upgrading with CVM fails to boot with missing /.nutanix_active_svm_partition | Each Nutanix system uses either /dev/sda1 or /dev/sda2 partition during the upgrade process. During the upgrade, boot up process will check which partition has a partition marker file (/.nutanix_active_svm_partition) to indicate the active partition for the upgrade. The active partition alternates for each subsequent... | Note:Please check the md5sum of the ServiceVM.iso before proceeding with any recovery steps.If it is different from a working, upgraded CVM, replace the iso with the correct one from the working CVM.
Create svmrescue.iso from another CVM in the cluster with make_iso.sh svmrescue RescueShell 50 (cd ~/data/installer/*)SC... |
{ | null | null | null | null |
KB3591 | Unable to expand the cluster without the latest iso_whitelist.json file, error "Hypervisor installer is not compatible" | Cluster expansion requires the iso_whitelist.json file. In most instances, the default iso_whitelist.json file that is present in Prism works. In some cases, you need to manually upload the latest iso_whitelist.json to Prism, as it might not contain the ISO image of your latest hypervisor. | An error message is generated when attempting to expand a cluster.
Hypervisor installer is not compatible.
You are more likely to experience this issue if you are using the latest hypervisor version. If AOS is newer than the hypervisor, the issue might not occur. | If you are using an older version of Foundation, the iso_whitelist.json file in Foundation may not contain the ISO image of the latest hypervisor. If the whitelist does not contain the MD5 hash of the ISO image of the hypervisor that you are adding to the cluster, the cluster expansion fails because the pre-upgrade che... |
KB11931 | OVA export from Prism Central fails with 'Internal Server Error. kInternalError: Internal Error: 5 :Error accessing ovas capabilities' | Following steps for 'Exporting a VM as an OVA' in the Prism Central (PC) Infrastructure Guide, OVA export from PC fails with 'Internal Server Error. kInternalError: Internal Error: 5 :Error accessing ovas capabilities'. | Issue encountered when following the instructions in the Prism Central (PC) Infrastructure Guide for ' Exporting a VM as an OVA https://portal.nutanix.com/page/documents/details?targetId=Prism-Central-Guide:mul-vm-export-as-ova-pc-t.html'.
After clicking 'Export', the following error occurs:
Internal Server Error. kI... | This is caused by an incorrect Prism Central certificate setup.
What is expected:
nutanix@PCVM$ sudo sed -e 1b -e '$!d' /home/private/server.key
Example of incorrect certificate setup:
nutanix@PCVM$ sudo sed -e 1b -e '$!d' /home/private/server.key
Generate a self-signed certificate that adheres to the formatting t... |
KB13287 | [host_nic_error_check] RX_missed/RX_CRC errors against unused interface eth0 after AOS upgrade to 5.20.x and NCC version to 4.5.0.2 | RX_missed/RX_CRC errors reports a high error rate or a false positive alert message for the wrong network interface "eth0" after AOS upgrade to 5.20.x and NCC version to 4.5.0.2 | The cluster may start getting "NIC eth0 RX_Missed Error Rate High" alerts after AOS upgrade to 5.20.X along with NCC version 4.5.0.2 although eth0 is not in use. Please see below example for the symptom in prism. The cluster may also receive "NIC eth0 RX_CRC Error Rate High" as seen below:
ID : x... | The health server picks up the right interface but atlc and alert_manager continuously understand the interface as eth0 ,which is the problem. The root cause has been identified to be with NCC version 4.5.0.2 in ENG-474304 https://jira.nutanix.com/browse/ENG-474034. If you run into this issue, collect a log bundle and... |
KB15469 | A post-procedure of reconfiguring the IP address of C-MSP enabled Prism Central VMs | An additional step is required to reconfigure the IP address of Prism Central VMs with C-MSP enabled | Reconfiguring Prism Central IP address requires additional steps if C-MSP is enabled.
The following symptoms may be observed after completing the steps in the product documentation.
Verification
All services are UP in cluster status command.
nutanix@pcvm$ cluster status
Microservices Infrastructure (C-MSP) is ena... | Perform the following steps after starting the PC cluster by cluster start.
Run the following command, or download mspserviceregistry-cli https://download.nutanix.com/kbattachments/15469/mspserviceregistry-cli and put it in /home/nutanix/bin of one of the PCVMs.
nutanix@pcvm$ wget https://download.nutanix.com/kbatt... |
KB16938 | Objects - Error saving the bucket due to "reduce your request rate" messages. | When a customer tries to create a objects bucket, the error "reduce your request rate messages" is shown in the UI. This is due to a RocksDB leak when doing compactions in the metadata server pod running in the Objects cluster. | 1. When a user tries to create/delete a bucket, the following message is displayed in the Objects UI.
Error saving the bucket. Bucket create failed : HTTP request failed with err: <?xml version="1.0" encoding="utf-8"?> ‹Error<Code>SlowDown</Code>Message>Reduce your request rate.‹/Message>Resource>/veeam-backup-app-medi... | This issue will be fixed in Objects 4.3, more information is described in ENG-604903 https://jira.nutanix.com/browse/ENG-604903.The workaround is to restart the "ms-server-0" pod within the Objects cluster and this is recommended to be done by a Support Tech Lead/Staff SRE or DevEx. |
KB2430 | [AWS/S3] How To Download Older Phoenix, AHV, PC, Foundation and AOS Images | [AWS/S3] How To Download Older Phoenix, AHV, PC, Foundation and AOS Images | The Nutanix Support Portal provides the latest AOS, PC, Foundation, Phoenix, Nutanix Files, etc. images in each currently supported code stream. A generic Phoenix image to be used for SATADOM replacements or other maintenance issues is available as well on Nutanix public portal. See KB 3523 for instructions for creat... | Note: AWS authentication has moved to OKTA. All SREs should have the AWS-Master-Console App assigned in OKTA. Open a ServiceNOW ticket if you don't see it in OKTA.
Access the AWS app via OKTAClick on S3 that is located under Storage.
Navigate to the required image:
Note: Portal mapping is to: https://s3.conso... |
KB4635 | Hyper-V: Host domain join in Prism fails with error "There is no such object on the server" or "Invalid OU path" | Joining the hosts and cluster to an AD domain via Prism fails when the default "Computers" CN is not present in the AD environment | Joining the Hyper-V hosts and cluster to domain may fail with an error when the default "Computers" container (CN) is not present:
There is no such object on the server.
Invalid OU path. | This occurs when the default "Computers" container is not present (or renamed) in the domain provided. The target OU Path will need to be filled out in the UI to proceed. For example:
OU=nutanix,OU=servers,DC=abc,DC=com
In older AOS versions, the OU Path field is not available in Prism. In this case, NCLI has to be use... |
KB15490 | AHV host panic crashes with the "uc_decode_notifier" function reference in the crash stack | An AHV host may panic crash with the "uc_decode_notifier" function reference in the crash stack. The crash may indicate a memory failure on a page. | Thus far, this crash has been seen only in the following config and observations:
NX hardware G6 or G7 hardware model. AHV 20220304.xxx build. There are no CECC UECC or hardware issues recorded in the IPMI events. Please cross-check the IMPI SEL events for any hardware issues. “mce: [Hardware Error]: Machine check even... | The crash is due to a hardware issue. The culprit hardware could be a DIMM module or a CPU Memory Controller issue. The next step is determining which of the 2 components caused the crash. To do so, we must perform a crash dump analysis.After collecting a log bundle, open a Tech-Help ticket for the crash dump analysis.... |
KB14262 | Alert - A200614 - FNSVersionMisMatch | Investigating Flow Network Security PE Minimum Version (FNSVersionMisMatch) alerts on a Nutanix cluster | This Nutanix article provides the information required for troubleshooting the alert A200614 - FNSVersionMisMatch - Flow Network Security PE Minimum Version for your Nutanix cluster.Alert OverviewThe FNSVersionMisMatch - Flow Network Security PE Minimum Version alert is generated on Prism Central (PC) when a Flow Netwo... | Check the current FNS version running on the reported affected PE cluster:
via PE Prism UI LCM Inventory
via CVM CLI, view value present in file /home/nutanix/flow/flow_version.txt. The following example shows how to extract this information for all CVMs in the same PE cluster:
nutanix@CVM:~$ allssh cat /home/nuta... |
KB15678 | False-positive '"Target cluster is unreachable or Round-trip travel (RTT) to target cluster is greater than 5ms."' alert gets generated on PC if custom SSL certificates with additional attributes are in use | False-positive '"Target cluster is unreachable or Round-trip travel (RTT) to target cluster is greater than 5ms."' alert gets generated on PC if custom SSL certificates with additional attributes are in use | On Prism Central, 'Target cluster is unreachable or Round-trip travel (RTT) to target cluster is greater than 5ms' alerts are being generated, and remote_site_latency_check on PCVM fails with 'Latency is too high' message for the remote site PE cluster:
Detailed information for remote_site_latency_check:
As per KB-7... | This issue happens due to these additional attributes being present in the custom SSL certificate on the Prism element cluster which is registered to the PC. Due to this, PCVM is unable to authenticate properly during the 'synchronous_replication_capable' fanout proxy API calls being made from the PC to the PE cluster.... |
KB14135 | NCC Health Check: duplicate_dsip_check | The NCC health check duplicate_dsip_check validates if the DSIP is duplicated on the network by comparing the MAC addresses of the CVMs for the cluster with the MAC addresses that respond when pinging the DSIP from each CVMIP. | The NCC health check plugin duplicate_dsip_check probes for any other devices which might also be using the data services IP, and will raise a notification if the data services IP is used on a non-CVM.
Running the NCC Check
It can be run as part of the complete NCC check by running
ncc health_checks run_all
Or ind... | Resolving the Issue
Check FAIL:
The data services IP should be unique and not duplicated by any other devices in the environment. If you receive alerts stating another device is using the data services IP, take note of the MAC address referenced and see if you can locate this within your network. If you are unable t... |
KB16875 | Prism Central: UI unavailable after upgrade to 2023.4.0.2 or 2024.1 | Prism Central UI is unavailable after upgrade to 2023.4.0.2 or 2024.1 due to ikat_proxy service not fully initializing. | Following an upgrade to 2023.4.0.2 or 2024.1, the Prism Central UI is unavailable showing "This site can't be reached".In ~/data/logs/ikat_proxy.out logs, the following repeated pattern will be seen.
2024-05-16 20:55:52,159Z rolled over log file
In ~/data/logs/genesis.out, the following line will be seen.
2024-05-16 ... | This is seen when action was taken to address envoy resource utilization documented in KB-16264 http://portal.nutanix.com/kb/16264. Please contact Nutanix Support https://portal.nutanix.com/ for assistance in restoring access to Prism Central UI. |
KB13927 | LCM task hung with 'Error AttributeError NoneType object has no attribute value' | While performing LCM inventory the task got stalled. genesis restart worked to complete the task. | Problem
LCM Inventory is hung at for more than 24 hours.Inventory task has been already completed on some Hosts, but one Host has not progress and caused the whole process to get stalled.Standard process documented on How to clear stuck LCM inventory tasks /articles/Knowledge_Base/How-to-clear-stuck-LCM-inventory-tas... | In LCM-2.5.0.3:
We have added in log signature which will record a traceback:
Unhandled exception encountered. Traceback:
If we observe any cases post LCM-2.5.0.3, please collect LCM logs (Refer KB-7288 http://portal.nutanix.com/kb/7288) Attach the log bundle in ENG-501339 https://jira.nutanix.com/browse/ENG-50133... |
KB11369 | Prism does not load Remote Site settings after saving Network Segmentation for DR IPs | Updating a remote site with Network Segmentation for DR may result in indefinite "Loading..." in the Prism UI. | Updating a remote site with Network Segmentation for DR may result in indefinite "Loading..." in the Prism UI.When updating a remote site, the below symptoms may occur:
Network Mapping shows no network information of local site or remote site.vStore Mapping shows error: Remote site is currently not reachable. Please tr... | This is a known issue with the Prism UI ( ENG-370048 https://jira.nutanix.com/browse/ENG-370048) which is resolved in AOS 5.20.4 and higher.Workaround: Configure the Remote Site vStore and Network mapping configuration with ncli:1. Gather the Container name from local cluster and remote cluster. Or we can get the targe... |
KB12426 | Nutanix Files - Launching Files Console from Prism Element accessed through Prism Central Fails | This kb helps resolving issue encountered during launch of newly introduced Files UI using Files Console | The following error will be received when launching the Files Console through Prism Central. Accessing the Files Console directly from Prism Element shows no issues.
"Http request to endpoint 127.0.0.1:7509 failed with error. Response status: 2"
or a Blank Page will be displayed Another scenario is that the page will ... | 1. Confirm Minerva directory is present under the below location with nutanix:apache as owners respectively on all the CVMs of PE attached to the PC
nutanix@cvm $ allssh "sudo ls -la /home/apache/www/console/ |grep minerva"
If the directory is not present, copy the Minerva directory from the old path to the new one on ... |
KB12184 | Python Upgrade on Hyper-V hosts | The article is for upgrading Python Version from 2.7.x to 3.9.7 in Hyper-V Clusters | Caveats
Satadom replacement, re-imaging, re-installation of a node, and Hyper-V upgrade will bring the Python version back to 2.7.x. Hence, the Python version needs to be upgraded again to 3.9.7 using the given procedure.After manually upgrading Python, LCM will show the default Python version as available. LCM allows ... | Perform the below steps on all Hyper-V hosts in the cluster.
Uninstall Python 2.7.x
Go to Control Panel > Programs > Uninstall a Program.Go to My Computer > Properties > Advanced System Settings > Environment variables > System variables > Remove Path that contains Python 2.7.x.Reboot the Host to complete the uninstal... |
KB7245 | Safely adding Low-compute Node to existing Hyper-V cluster | This KB article describes an issue, Where the addition of Storage-only Nodes/Low-compute nodes Fails in an existing Hyper-V cluster. | This KB article describes an issue, Where the addition of Storage-only Nodes/Low-compute nodes Fails in an existing Hyper-V cluster.
You might see following Error : “Could not get hostname for ip could not connect to the NutanixHostAgent: No route to host”
Foundation logs show :
2018-11-08 12:47:28 ERROR expand_clu... | Check the Foundation Version on the cluster :
nutanix@CVM$ cat foundation/foundation_version
If you are running Foundation version older than 4.1, upgrade Foundation to the latest.You can add the nodes using one of the following methods.
Method 1
1. SSH to the CVM of the new Node you are trying to add
2. Go to
... |
KB3754 | How to Cancel, Throttle, Pause replication | This article describes how to cancel, throttle, pause replication | Note: Nutanix DRaaS is formerly known as Xi Leap. Nutanix Disaster Recovery is formerly know as LeapYou might want to cancel an existing protection domain replication in certain scenarios. For example, if multiple protection domains are running the initial synchronization, you might want to cancel one or more replicati... | Cancel an existing protection domain replication
1. View the existing replication details.
nutanix@cvm$ ncli pd ls-repl-status
ID : 754
2. View the existing LEAP/Xi Leap On-going replication details.
nutanix@cvm$ ncli pd ls-repl-status protection-domain-type=entity-centric
Sample output:
Id ... |
KB14098 | AWS CloudConnect backups fail due to wrong time in cloud CVM | AWS CloudConnect backups fail due to wrong time in cloud CVM | Customers using AWS CloudConnect backups may notice the replications could be stalled. Checking stargate.out on the cloud CVM you may see multiple errors like below reporting no disk space is available,
W1217 03:23:53.992792 17546 vdisk_micro_cerebro_extent_writer_op.cc:1685] vdisk_id=38533440556 operation_id=88055 At... | S3 uses HTTP protocol which requires time difference on the communicating parties to be within 5 mins max. Due to wrong time the Cloud CVM is not able to write to S3 bucket causing the disk to be marked as offline. Due to no disks available in CLOUD tier, stargate complains kDiskSpaceUnavailable.
To resolve the issu... |
KB15295 | Nutanix Kubernetes Engine development deployment failed due to the etcd VM unable to obtain a IP address. | NKE supports development deployment and production deployment. Production deployment requires IPAM while development deployment can use either IPAM or non-IPAM network. If a development deployment uses a non-IPAM network and the network does not have a DHCP server, the deployment will fail since the newly created etcd ... | When using development deployment for Nutanix Kubernetes Engine (NKE) deployment, the deployment may fail with the error message:
Failed to create node: internal err or: Operation timed out"
From Prism Central (PC) VM, /home/nutanix/data/logs/karbon_core.out shows "Failed to retrieve etcd cluster" and "Failed ... | Change the Kubernetes Node Network to use an IPAM network or a non-IPAM network with a running DHCP server. |
KB5199 | NCC Health Check: dataservice_connectivity_check | NCC 3.6.0. The NCC health check dataservice_connectivity_check verifies if a Calm-enabled Prism Central VM can talk to Data services ports on the Prism Element cluster where Prism Central is running. | The NCC health check dataservice_connectivity_check verifies if a Calm-enabled Prism Central VM can talk to Dataservices ports on the Prism Element cluster where Prism Central is running.
This check is only applicable if Calm has been enabled on the Prism Central VM. Nutanix Self-Service (NSS) is formerly known as Cal... | Calm utilizes the volume group (Nutanix Volumes) on Nutanix clusters. This volume group is used by Calm to store the logs from application launches. Prism Central VM uses iscsi to connect and mount the volume group.
When Calm is enabled in the Prism Central VM, a new volume group is created on the Prism Element cluste... |
KB13754 | Upgrade and cluster expansion pre-checks: test_license_enforcement_check, test1_1_license_enforcement_check | The pre-upgrade check test_license_enforcement_check checks cluster license. | Upgrade pre-check test_license_enforcement_check and cluster expansion pre-check test1_1_license_enforcement_check are validating if a valid license is installed on the cluster.In case of failure, you can see one of the following errors:
Upgrades and Security patches are blocked due to expired licenses on cluster | Install a valid license on the cluster to proceed with cluster expansion or upgrade. Refer to the License Manager Guide https://portal.nutanix.com/page/documents/details?targetId=License-Manager:License-Manager for more information. |
KB5377 | NCC Health Check: pcvm_same_mem_level_check | The NCC health check pcvm_same_mem_level_check verifies if all Prism Central (PC) VMs have the same memory level. | The NCC health check pcvm_same_mem_level_check verifies if all Prism Central (PC) VMs have the same memory level.
This check returns a PASS status if all PC VMs have the same memory level. Otherwise, if there is any PC VM with a different memory level, it returns a WARN status.
Note: This NCC check on Prism Central w... | If the NCC check pcvm_same_mem_level_check returns a WARN status, the check indicates the PC VM that is running a memory level different from the other PC VMs in the cluster.
To resolve this issue, upgrade the memory of the PC VM to match the minimum memory requirement.Note: If a minor MemTotal discrepancy is observed... |
KB14042 | Manual upgrade of LCM framework using deploy_framework.py script | This KB provides steps to manually deploy LCM framework using the deploy_framework.py script. | There will be conditions where customers cannot use LCM in connected site and also cannot use Dark site LCM upgrade methods of Web Server and LCM Upload.
If that is the case, then you can use the below manual LCM framework upgrade method by using the deploy_framework.py script.The first step is always re-direct custome... | This KB should only be considered if we have exhausted all other troubleshooting or need to upgrade LCM to a version that supports Direct Upload. Please consult a Sr. SRE Specialist or LCM SME before moving forward with the below workflow.The following script deploys LCM out of band and can be used to manually deploy L... |
KB16354 | NKE - Elastic Search disk full causing Kibana to be in CrashLoopBackOff. | Elastic search hitting 96% usage on the pvc will cause all indices to be in read only state which causes Kibana to be in CrashloopBackOff. One possibility is the elastic search curator cron job is in suspended state causing curator to not run and cleanup old data. | Users may notice kibana-logging container is in crashloopbackoff state. Checking the logs for kibana container, you may notice (for readability lines have been split in the below output)
[root@karbon-xxx-yyyy-k8s-master-0 nutanix]# kubectl logs -n ntnx-system -l=k8s-app=kibana-logging | grep error
Checking the elast... | To reduce the space usage inside ElasticSearch pod you will need to un-suspend the cronjob to run a clean up job. To unsuspend the schedule run the below command,
[root@karbon-xxxx=yyyy-master-0 nutanix]# kubectl patch cronjobs elasticsearch-curator-cron -p '{"spec" : {"suspend" : false }}' -n ntnx-system
Verify the S... |
KB17165 | Files analytics GUI became inaccessible due to the VG unmounting. | Files analytics GUI may become inaccessible because the FA VG was unmounted due to an incorrect PCI address. | After rebooting or powering cycling the File Analytics VM (FAVM), the Volume group (VG) might unmount from the VM, causing GUI inaccessibility as docker services run from the VG. This can be seen in KB 9962 https://portal.nutanix.com/page/documents/kbs/details?targetId=kA00e000000brXQCAY; please review the description... | We can follow the below steps to manually edit the /opt/nutanix/volume_group_management/config/vg_pci_slot file to change the PCI address so that it matches.
Edit the /opt/nutanix/volume_group_management/config/vg_pci_slot file using Vim editor to update the PCI address to match the disk:[nutanix@FAVM ~]$ vi /opt/nutan... |
KB16242 | Prism Central UI - slow user action responses and unavailability | This KB article describes a known issue affecting Prism Central versions PC.2023.3, PC.2023.3.0.1, and PC.2023.4 where users may experiences slow responses from actions taken in the PC GUI, eventually leading to complete unavailability of the PC GUI. | There is a known issue affecting Prism Central versions PC.2023.3, PC.2023.3.0.1, and PC.2023.4 where users may experiences slow responses from actions taken in the PC GUI, eventually leading to complete unavailability of the PC GUI. The symptoms include:
Prism Central GUI may be slow when responding to user actionsPC ... | Nutanix Engineering is aware of the issue, and a fix has been integrated into PC.2023.4.0.2 and PC.2024.1. This problem is tracked in ENG-620967 https://jira.nutanix.com/browse/ENG-620967.The issue is caused by a monitoring script inside the "iam-user-authn" pod not waiting enough time for the connections to close gra... |
KB2028 | Integrating Nutanix with SolarWinds | SolarWinds is a common network monitoring tool. This guide explains the setup process for a Nutanix cluster to work with SolarWinds. | SolarWinds is a common network monitoring tool. This guide explains the setup process for a Nutanix cluster to work with SolarWinds. | API MethodIn this method, SolarWinds leverages the APIs provided by Nutanix. Follow the SolarWinds guide https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-nutanix-hwh-setup.htm to set up Hardware Health monitoring for Nutanix clusters.
SNMP MethodStep 1 - Nutanix SNMP Configuration
Cl... |
KB11566 | Expand cluster pre-check - test_current_proto | Expand cluster pre-check - test_current_proto | Expand cluster pre-check test_current_proto checks the following conditions:Case 1. Verifies that the new node is not already part of the cluster configuration.Case 2. Checks if there is an ongoing node removal.In case of failure, you can see one of the following error messages:
New nodes cannot be added because node <... | Case 1. You are trying to add a node that is already present in the cluster configuration. Sometimes, the error occurs if the node was not properly removed from the cluster. Make sure that you are adding the correct node to the cluster.Case 2. Wait until the ongoing node removal is completed and retry Expand cluster op... |
KB15447 | Nutanix Files - Unable to view smart DR policies from Prism Central | Unable to view smart DR policies from Prism Central, error "Failed to fetch error: Request failed with status code 504 undefined" | Unable to view the smart DR replication policies. On Prism Central, we see the error "Failed to fetch error: Request failed with status code 504 undefined" as can be seen in the snippet below:
The Files Manager logs under ~/data/logs/files_manager_service.out will show the below signature:
I0907 08:58:34.660323Z... | ENG-519308 https://jira.nutanix.com/browse/ENG-519308 is resolved in pc.2024.1 and ENG-530780 https://jira.nutanix.com/browse/ENG-530780 in pc.2024.1 + Files Manager 5.0
Please upgrade Prism Central and the Files Manager component to the specified version or newer.WorkaroundIf upgrading is not an option we will nee... |
""Title"": ""Typically | the customer receives an alert indicating that a CVM rebooted. Looking at the host uptime we find that the host rebooted at the same time as when the CVM went down. Hypervisor logs do not indicate that this was a user initiated reboot.\n\n\t\t\tThe customer may also experience cluster wide latency spikes (upwards of +1 | 000 ms) and overall elevated latency that can last for hours. The problem disappears by itself or sometimes after the customer reboots their nodes one after the other. The Nutanix logs do not indicate a degraded node scenario | null | no degraded alert will be fired."" |
""Verify all the services in CVM (Controller VM) | start and stop cluster services\t\t\tNote: \""cluster stop\"" will stop all cluster. It is a disruptive command not to be used on production cluster"": ""Sort disk space"" | null | null | null |
KB14915 | NVMe SSD disk is not mounted by CVM and list_disks command returns an error complaining “Layout file does not have any information for VMD” | Due to one of several potential issues, users of nodes with NVMe SSDs may observe that one or more of these disks is not able to be brought online by AOS due to a conflict in the mapping between physical VMD controllers and their logical vmd_index numbers in the hardware_config.json. As a result, Hades may report that ... | Table of Contents
Potential Symptoms #Potential_symptoms Issue Identification #Issue_identification Checking if VMD Controller Assignment in CVM is Accurate #Checking_vmd_controller_assignment_accuracy
Step 1: Find BAR value from the hypervisor #step_1_find_bar Step 2: Find the mapping #step_2_find_mapping Step 3: G... | The crux of the problem is in the way that physical VMD Controller PCI Devices are mapped to the vmd_index numbers shown in the hardware_config.json file. If this is done incorrectly by our software, then it is possible that Hades will see NVMe devices associated with root ports on VMD controllers that should not be in... |
KB12266 | High CPU usage causes the ping latency on CVMs. | High CPU usage on CVMs can cause the ping process to take a longer time to complete measuring the latency because of the lower process priority. Customer can ignore this alert. | The following alert is generated.
Critical: Latency between CVMs is higher than 15 ms.
The NCC health check reports a Fail status.
Detailed information for inter_cvm_ping_latency_check:
inter_cvm_ping_latency_check shows FAIL from health_server.log.
INFO ncc_task.py:575 [inter_cvm_ping_latency_check] Status for... | High CPU usage on CVMs can cause the ping process to take longer to complete measuring the latency because of the lower process priority. In this case, the ping process reports higher latency than the actual network latency.
The following sample graphs (on Panacea) show that the ping latency goes up when the CPU idle%... |
KB15121 | Script to Fetch Efficiency Details of the VM's from PC | Script to fetch the efficiency details from IDF for VM's in PC | Script to Fetch Efficiency Details of VMs via IDF in PC | NOTE: This script should only be run once for debugging purposes only by STLs in the Prism Central VM.While working over TH-10191, we created a script to be run from PC CLI to fetch the efficiency details of the VMs via IDF ( Behavioral Learning Tools https://portal.nutanix.com/page/documents/details?targetId=Prism-Cen... |
KB15516 | HPE DX Gen11 - One or more drives may be missing post Host reboot | This article describes an issue on HPE DX Gen 11 platforms where one or more drives may go missing after reboot on AOS 6.5.3.5 and (or) above. | On HPE ProLiant Gen11 platforms, one or more drives may go missing in list_disks and iLO after reboot on AOS 6.5.3.5 and (or) above.This issue impacts ESXi hypervisor and the below platform models:
DX380 Gen11 24SFFDX360 Gen11 8SFF
On iLO, a drive is missing under System Information > Storage > HPE MR216i-p Gen11.list_... | Nutanix and HPE Engineering are working to resolve this issue in an upcoming firmware version.As a workaround, follow the guide to Reboot the host https://portal.nutanix.com/page/documents/details?targetId=vSphere-Admin6-AOS-v6_7:wc-request-reboot-wc-t.html. After the reboot, the drive will be added to the list_disks ... |
""NVMe"": ""Disk presence: list_disks | lsscsi | lsblkLogical configuration: panacea_cli show_disk_list | hades.out | panacea_cli show_zeus_configDisk health: smartctlController health: lsiutilLogs: stargate.INFO |
KB10953 | Using Nutanix Objects Self-Signed Certificate with Veritas Enterprise Vault | This article describes how to import the Nutanix Objects self-signed certificate to Veritas Enterprise Vault servers. | This article describes how to import the Nutanix Objects self-signed certificate to Veritas Enterprise Vault (EV) servers. Failure to do so will result in an SSL communication error between the Enterprise Vault Servers and Objects.
When Nutanix Objects uses a self-signed CA certificate, then that certificate is requir... | On the Primary Storage System
Perform the following steps on all Enterprise Vault servers to import the Nutanix Objects self-signed CA certificate.
Ensure you have the Nutanix Objects self-signed CA certificate in PEM format.From the Windows Start menu, open mmc.exe.
Select File -> Add/Remove Snap-in.
Select Ce... |
KB15896 | AHV crash or VM power operation may fail for vGPU enabled VMs | AHV crash or VM power operation may fail with "Timed out during operation: cannot acquire state change lock (held by monitor=remoteDispatchDomainMemoryStats)" if a VM with vGPU is running on AHV. | The issue symptoms might materialise in either AHV crash or VM power operation failing, both scenarios are explained below:
Scenario 1
AHV kernel panic triggered, detecting CPU lock-up causing inability to free-up the ring buffers. Below prints can be seen in the vmcore_dmesg log file:
[3413353.807457] CPU: 24 PID: 3... | NVIDIA has found the resolution for this issue and it will be included in the 16.3, 17.0, and later releases.Workaround: Reboot the AHV host where the affected VM is running.Note: This will require a full power cycle and the host will likely be unable to enter maintenance mode nor will VMs migrate. For the workaround t... |
KB12659 | Nutanix Disaster Recovery - Cross Cluster Live Migration (CCLM) fails with error "Given input is invalid. Multiple IP addresses requested." | VM migration (planned failure) through recovery plan fails with error " Given input is invalid. Multiple IP addresses requested" when more than one IP configured on single network interface (sub interface configuration) | Note: Nutanix Disaster Recovery (DR) was formerly known as Leap.VM migration through recovery plan fails with error "Given input is invalid. Multiple IP addresses requested" when more than one IP is configured on a single network interface (sub-interface configuration).
Planned failover (Live and cold migration) is af... | ENG-445064 https://jira.nutanix.com/browse/ENG-445064 has been created for the issue and has been fixed with the pc.2022.4 release.
Workaround:
For live migrating the VMs, "Migrate Outside cluster" option from the VM tab can be used. This option would work on individual VM from the source PC.
|
KB7347 | LCM upgrade on a two-node cluster fails with zookeeper session failure | null | In AOS 5.10 and earlier an upgrade via LCM may fail for a two-node cluster. Upgrade pre-check test_two_node_cluster_checks fails with "failed to revoke token" ERROR :
2019-03-25 11:31:34 ERROR lcm_prechecks.py:283 precheck test_two_node_cluster_checks failed: Reason(s): ['Cannot upgrade two node cluster when cluster ... | This is a known issue that is resolved in AOS 5.10.2. Upgrade to AOS 5.10.2 or later. |
""cluster status\t\t\tcluster start\t\t\tcluster stop"": ""lspci"" | null | null | null | null |
KB14176 | Nutanix Kubernetes Engine - Restoring an etcd database snapshot | The Nutanix Kubernetes Engine (NKE) Guide provides steps to backup an etcd database, but does not include the steps to restore the backup. Users should contact Nutanix Support for assistance restoring an etcd database snapshot. | Nutanix Kubernetes Engine (NKE) is formerly known as Karbon.The NKE Guide https://portal.nutanix.com/page/documents/list?type=software&filterKey=software&filterVal=Nutanix%20Kubernetes%20Engine%20(formerly%20Karbon) provides steps to backup the etcd database under the Backing up Etcd section of the Guide. For example,... | To restore an etcd snapshot that is created via the documented Backing up Etcd procedure, contact Nutanix Support https://portal.nutanix.com (login required). |
KB12030 | Frequent Lazan service restarts on AHV clusters with vGPUs after upgrading to 5.20.x or 6.0.x and later | Lazan service frequently restarts observed on clusters with a high number of VMs and or nodes with vGPU due RPCs to Pithos dropped as the size is above the maximum default threshold of 16MB.
Clusters upgraded to 5.20.x, 6.0.x and later where FEAT-11930 - ADS for vGPU enabled VMs is delivered are susceptible to this iss... | Lazan service frequently restarts observed on clusters with a high number of VMs and or nodes with vGPU due to RPCs to Pithos dropped as the size is above the maximum default threshold of 16MB.Clusters upgraded to 5.20.x, 6.0.x, and later where FEAT-11930 https://jira.nutanix.com/browse/FEAT-11930 (ADS for vGPU enable... | This issue is resolved in:
AOS 5.20.X family (LTS): AOS 5.20.4AOS 6.0.X family (STS): AOS 6.1.1
Please upgrade AOS to versions specified above or newer. |
KB13669 | Removing duplicate name from NKE Private Registry | Removing duplicate name from NKE Private Registry | Nutanix Kubernetes Engine (NKE) is formerly known as Karbon or Karbon Platform Services.By default, NKE does not add additional container image registries to Kubernetes clusters. To use your own images for container deployment, The customers are able to add a private registry to NKE and configure private registry acces... |
Deleting a Private Registryhttps://portal.nutanix.com/page/documents/details?targetId=Nutanix-Kubernetes-Engine-v2_5:top-registry-delete-t.htmlPlease note: the instruction is based on the registry-name
|
KB10459 | NCC Health Check: usage_discrepancy_check | The NCC usage_discrepancy_check | The NCC health check usage_discrepancy_check reports discrepancy between storage container total- and disk- logical transformed usage.Transformed usage refers to storage capacity after applying space saving optimization features such as Compression https://portal.nutanix.com/page/documents/details?targetId=Prism-Centr... | The recommended solution is upgrading to AOS 5.20.4 and higher (or to AOS 6.5.1 and higher) to get improvement in the logic of Stargate background scans.In case AOS has already updated to the version with improvement but NCC usage_discrepancy_check still reports FAIL, consider engaging Nutanix Support https://portal.n... |
KB14515 | Space Accounting - Determining VM Space Usage | This article outlines how to determine the VMs with the highest space usage on a cluster. | For other Space Accounting issues not covered in this article, see Space Accounting | General Troubleshooting https://portal.nutanix.com/kbs/14475.
While managing a Nutanix cluster and investigating storage utilization, it can be helpful to investigate which VMs are using the most space and track their growth. Doing ... | There are a handful of options for tracking your space usage. It is worth noting that the usages seen with the methods below do not account for cloned data or snapshot data. Cloned data is shared among all of the clones, and so deleting a VM or vDisk that has been cloned will not release all of the space unless all of ... |
KB14197 | VM migration task may get stuck on AOS 6.0 or newer if Acropolis service is restarted while both "HA failover" and "VM migrate" tasks were running | VM migration task may get stuck on AOS 6.0 or newer if Acropolis service is restarted while both "HA failover" and "VM migrate" tasks were running | VM migration task may get stuck on AOS 6.0 or newer if the following sequence of events happens:
HA failover has occurred on one of the hosts in the cluster.While HA failover is processing, the VM migration task is initiated (between any other hosts in the cluster).While both "HA failover" and "VM migrate" tasks are r... | This issue is resolved in:
AOS 6.8.X family (eSTS): AOS 6.8
Upgrade AOS to versions specified above or newer.Generic guidance: check task history, review "HA failover" and "VM migrate" task creation and duration times, and try correlating it with acropolis.out log to see if the Acropolis leader was changed at the same ... |
KB12781 | How to capture a sample Pulse payload | This article describes how to capture a sample Pulse payload. | Pulse payloads cannot be analyzed using network monitoring tools such as Wireshark since, for security reasons, all communications from Nutanix clusters to the Nutanix Insights service are encrypted. Hence, to allow customers to access this Pulse payload and get a clear insight into what is being collected from Nutanix... | Download the nutanix_pulse_packet_helper.py script
For NCC 4.6.1 and later, the script is already installed in the system. Therefore, there is no need to download it.
For NCC versions prior to 4.6.1, upgrade NCC to 4.6.1 or later to have access to the script. If upgrading to NCC 4.6.1 or later is not an option at th... |
KB7902 | Nutanix Cost Governance - General FAQ | Frequently asked questions about Nutanix Cost Governance. | This FAQ document lists out possible questions under general category.Nutanix Cost Governance is formerly known as Beam. | If a user wants to give “Read-Only” permissions, will they still be able to see cost and security optimization data in their Beam account?Yes, the user with “Read-Only” permission can see Cost Governance/Security Compliance data depending on cloud accounts assigned to him by the admin. For more details on permissions s... |
KB1171 | NX Hardware [Power Supply] – Connecting Power to the Nutanix Block | This article lists the types of power cords and outlets required for a Nutanix block. | This article lists the types of power cords and outlets required for a Nutanix block. | Nutanix recommends 208/240V power across all platforms to ensure power supply redundancy. On the outlet side, we recommend a dedicated 208V, single-phase 20A circuit (NEMA L6-20). However, NEMA L6-30 can also be used.
The Nutanix equipment end is IEC-C13 except for some configurations in the NX-3060/3060N-G8 platforms... |
KB15091 | NDB: Migration_orchestrator.py failed to convert the Volume Group to VMDK disk for PostgreSQL Database | Migration Script to convert the Volume Group to VMDK Disk that has the PostgreSQL Database data residing failed with below Traceback error,
File "/opt/migration/VG_to_VMDK_Migration.py", line 761, in migrate_to_disk Migration.__pre_compute_mandate_informat | Terminology:
For a customer using the NDB PostgreSQL Database solution, providing a solution to convert their existing PostgreSQL DBVM with Volume Group to the VMDK Disk only for the database disk.As part of the current workflow in NDB for the PostgreSQL Database provisioning, the disk is created with Volume Group.The ... | To fix the issue with the two filesystems "SDG" and "SDH", follow the below steps,
Validate the PostgreSQL Database is running, by running the below command on the DBVM.
sudo systemctl status patroni
If the PostgreSQL Database is running, run the below command to stop the Patroni Service.
sudo systemctl stop patroni... |
KB15853 | Lenovo HX3331 nodes shown as HX3330 in Prism | Some Lenovo nodes with model HX3331 may be shown as HX3330 in Prism if they were foundationed with version prior to 5.2.2, this KB provides the steps on how to identify this problem and resolve it. | Some Lenovo nodes with model HX3331 may be shown as HX3330 in Prism if they were foundationed with a version prior to 5.2.2. This KB provides the steps on how to identify this problem and resolve it.One or more nodes may show an incorrect model in the Prism UI, however, the dmidecode output or XCC (XClarity console) di... | Scenario A:If VPD data on XCC (XClarity console) is incorrect, please contact Lenovo Support to fix it. Scenario B: If VPD Data on XCC (XClarity console) is Correct but Prism UI Shows different as XCC (XClarity console) please proceed with the below solution:
Remove the node from the cluster (Please refer to the Pris... |
KB16540 | File Analytics : Analytics VM mnt partition 100% utilised due to Elastic Search cores. | We ran into an issue on FA 3.3.0 where /mnt was filled almost entirely by Elastic Search cores. | This indicates that the File Analytics VM is utilizing its disk storage more than the accepted threshold. It is applicable to the mnt partition. This requires freeing up storage capacity in the affected disk. If the disk exhausts its storage capacity then it might block all operations on the FA VM.1. SSH to FA VM2. ... | 1. Connect to bash shell of Analytics_ES1 docker container.
[nutanix@NTNX-FAVM ~]$ docker ps
2. Validate further for elastic search cores under elastic search container which will be consuming more space.
[root@7fd900fa5220 /]# ls -lathr /usr/share/elasticsearch/elasticsearch-7.16.3/*core*
3. Delete the cores files fo... |
KB11741 | Nutanix Self Service (Formerly CALM): Prism Central Projects and LDAP Integration | Prism Central Projects functionality implements a new construct of "Projects" for integration into Nutanix Self Service (Formerly CALM). Projects are a set of Active Directory users with a common set of requirements or a common structure and function, such as a team of engineers collaborating on an engineering project.... | Projects provide logical groupings of user roles to access and useNutanix Self Service (Formerly CALM) within your organization. To assign different roles to users or groups in a project, you use configured Active Directory in Prism Central.In Nutanix Self Service (Formerly CALM), a project is a set of Active Directory... | Identifying an individual user1) Check the users in PC with nuclei user.list. NOTE: Add "count=400" to the command:
nutanix@PCVM:~$ nuclei user.list count=400
The following additional arguments can be used for user.list command to ease the search in larger environments.
<nuclei> user.list
2) Confirm the individual us... |
KB13109 | pc.2022.1: Prism Self Service: The "Edit CD-ROM image" widget shows Image Name in blank for Catalog items | In Prism Central pc.2022.1 or later releases, the Prism Self Service users cannot see the Catalog items' names when they try to mount the catalog items to a VM's virtual optical drive. The "Edit CD-ROM image" widget of the "Edit VM" popup shows an empty Image Name column for each Catalog item. This does not affect pc.2... | In Prism Central pc.2022.1 or later releases, the Prism Self Service users cannot see the Catalog items' names when they try to mount the catalog items to a VM's virtual optical drive. The "Edit CD-ROM image" widget of the "Edit VM" popup shows an empty Image Name column for each Catalog item. This issue does not affec... | This issue was fixed in pc.2022.6, or later. Please upgrade Prism Central. |
KB9600 | SAML 2 Compliance restricted to ADFS | Official Prism documentation lacks clarity, KB needed to avert cases | Customers may be wanting to setup authentication using a third-party provider using SAML. The Nutanix Bible, for example, lists;
SAML / 2FA
Technical document TN-2042-Prism https://portal.nutanix.com/page/documents/solutions/details?targetId=TN-2042-Prism:TN-2042-Prism also states the following;
Configuring Prism to ... | For improved SAML2 compliance, please update Prism Central to pc.2021.3 or later. Prior to Prism Central version pc.2021.3, Prism Central was not fully SAML 2 compliant and is limited to ADFS implementation only.This is noted in the Nutanix Security Guide https://portal.nutanix.com/page/documents/details/?targetId=Nu... |
null | null | null | null | null |
KB13074 | Prism Central: Prism Central upgrade vDisk - Compatibility matrix for Non-Nutanix clusters and workaround | This article outlines the compatibility, limitations and workaround for provisioning Prism Central upgrade vdisk on HyperV and Non-Nutanix clusters. | Starting PC.2022.6 - A dedicated new 30 GB disk is created and mounted for PC upgrades. This vdisk will be used for downloading and extracting upgrade binaries from consecutive upgrades.Two ways of getting this implemented:
Greenfield: A fresh PC deployment is called the Greenfield Scenario (Will be supported in futur... | For brownfield scenarios - In non-Nutanix deployments (where there is no hosting PE), we provide an option to add a 30 GB disk manually before the upgrade that can be used to provision the new upgrade vdisk during the upgrade, which can be used for the subsequent upgrades.Steps:
Select the prism central VM from the li... |
KB9899 | Nutanix Files - Backup for millions of files stalls & won't complete using Commvault Backup | Backing up millions of files using Commvault can cause the backup to stall and won't complete. | Customers may experience issues backing up Files environments using Commvault when the dataset is extremely large. For example:
Backing up more than 100 million files may result in slow backups taking forever or eventually timeout and fail.Backing up millions of files using 3rd party backup product (Commvault) stalls ... |
Confirm that CFT is enabled, from Commvault Console, 'Nutanix Files Client's properties.
Confirm that caching is turned off ( Nutanix Files - Metadata latency showing high for Nutanix files /articles/Knowledge_Base/Metadata-latency-showing-high-for-Nutanix-files)
nutanix@FSVM:~$ afs smb.get_conf 'metadata cache... |
KB13166 | Nutanix DRaaS - L2 Stretch implementation fails for distributed port-groups | DRaaS L2 Stretch is supported for distributed port-groups and subnets in Prism Central pc.2022.4. However, it may still fail with the following error: "error_detail": "Failed Layer2StretchCreatePrechecks \nSubnet prefix length not provided for unmanaged subnet 600 TEST Dist Port Group" | Nutanix DRaaS is formerly known as Xi Leap.Prism Central pc.2022.4 now supports DRaaS L2 Stretch with ESXi distributed ports. However, due to a known issue, the L2 Stretch create workflow in Prism Central fails with following error
Failed Layer2StretchCreatePrechecks \nSubnet prefix length not provided for unmanaged ... | This issue is resolved in Prism Central pc.2022.4 which now supports L2 Stretch implementation with subnets for distributed port-groups.However, due to a known problem, the L2 Stretch create task fails in Prism with the above error.A workaround to establish L2 Stretch exists. Please engage Nutanix Support http://porta... |
KB12092 | Nutanix Cloud Clusters (NC2) - Network creation on Prism Element hosted on AWS fails with "No matching subnet found for CIDR" | Network creation on Prism Element hosted on AWS fails with "No matching subnet found for CIDR". | Network creation on NC2 on AWS fails with error "No matching subnet found for CIDR":You can see failed tasks for network creation:
nutanix@cvm:~$ ecli task.list
Task details show the error "No matching subnet found for CIDR":
nutanix@cvm:~$ ecli task.get ed45be7e-2d8c-477b-9d8a-8d2a1292de09
~/data/logs/acropolis.out o... | Verify that there is a subnet created with CIDR x.x.x.x/x on AWS (AWS Console > VPC > Subnets): Make sure that there is a NAT Gateway associated with the subnet in AWS. NAT Gateway enables instances in a private subnet to connect to services outside the VPC using NAT Gateway's IP address. DNS servers should be configur... |
KB12683 | Nutanix Files: How to get the size of all the TLDs in a Distributed share. | Get the size of all the TLDs in a distributed share | The following steps can be used to get the size of all TLDs in a distributed share. | 1) Run the below command on any FSVM to create a working directory on each FSVM.
nutanix@FSVM:~$ allssh "mkdir /home/nutanix/tld_size"
2) Move into the tld_size directory.
nutanix@FSVM:~$ cd /home/nutanix/tld_size
3) Run the below command to create a file named tld_size, which will have the paths for each TLD. Replac... |
KB14024 | Calm application deployment fails with "Failed getting banner" | During a Calm application deployment an error might occur: Script execution has failed with error "Failed getting banner". | During a Calm application deployment an error might occur:
Script execution has failed with error "Failed to get banner"
This issue indicates an error while Calm tried to connect to the application via SSH. The following SSH-related errors can trigger the 'Failed getting banner' fault:
Connection refusedConnection time... | Ensure that PCVM can communicate to the subnet that is used for application deployment. Port 22 for SSH must be available within the application being deployed. Ensure the blueprint configures SSH on the application before the script is called to prevent the issue. |
KB10149 | How to find replication bandwidth usage for Metro Availability containers | This articles helps identify the bandwidth used for metro containers. | In current AOS versions, bandwidth used by synchronous replication traffic for Metro Protection Domain(s) is not displayed on charts in Prism UI on the Analysis page (or on the Metrics tab for selected Metro Protection Domain).These charts display only bandwidth used by asynchronous replication (that occurs for Metro P... | When Metro Availability is enabled for a container(s) all disk operation from User VMs on the container(s) will be synchronously replicated to the remote cluster.There are two scenarios, depending on which side of Metro Enabled container (active or standby) User VMs are running.
if all User VMs are running on the acti... |
KB14625 | Cluster recovery after fire alarm | This article outlines best effort steps to recover cluster in case of a fire alarm. | IMPORTANT: Cluster recovery in case of fire alarm or fire suppression event is a best effort only. Please notify your manager about the incident.
A fire alarm or activation of a fire suppression system can cause multiple HDDs in the cluster to be marked for removal, causing a cluster outage. The following recovery ste... | Make a note of all the disks marked for removal on all CVMs. Perform smartctl checks on all HDDs on a node:
nutanix@cvm$ sudo smartctl -x /dev/sdX -T permissive
Example:
sudo smartctl /dev/sdb -a
Look for counter G-Sense_Error_Rate. This counter increments when the disk detects external shocks.
Check smartctl for e... |
KB7578 | Drive Population Rules | A guideline on drive population rules for different types of platforms. | A guideline on drive population rules for different types of platforms. | GeneralFor all up-to-date guidance refer to Acropolis Advanced Administration Guide https://portal.nutanix.com/page/documents/details?targetId=Advanced-Admin-AOS-v6_7:app-nutanix-cloud-infra-minimum-field-requirements-c.html.
All SSDs in a node are required to be of similar capacity (+/- 20% accounting for the capa... |
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