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Applies to: Windows Server 2022, Windows Server 2019, Windows 10, Windows 8.1, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2, Windows Server 2008 |
Lists subscribed volume shadow copy writers. |
Syntax |
vssadmin list writers |
vssadmin resize shadowstorage |
Applies to: Windows Server 2022, Windows Server 2019, Windows 10, Windows 8.1, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2, Windows Server 2008 |
Resizes the maximum amount of storage space that can be used for shadow copy storage. |
The minimum amount of storage space that can be used for shadow copy storage can be specified by using the MinDiffAreaFileSize registry value. For more information, see MinDiffAreaFileSize. |
Warning |
Resizing the storage association may cause shadow copies to disappear. |
Syntax |
vssadmin resize shadowstorage /for=<ForVolumeSpec> /on=<OnVolumeSpec> [/maxsize=<MaxSizeSpec>] |
Parameters |
Parameter |
Description |
/for=<ForVolumeSpec> |
Specifies the volume for which the maximum amount of storage space is to be resized. |
/on=<OnVolumeSpec> |
Specifies the storage volume. |
[/maxsize=<MaxSizeSpec>] |
Specifies the maximum amount of space that can be used for storing shadow copies. If no value is specified for /maxsize, there's no limit placed on the amount of storage space that can be used.The MaxSizeSpec value must be 1 MB or greater and must be expressed in one of the following units: KB, MB, GB, TB, PB, or EB. If no unit is specified, MaxSizeSpec uses bytes by default. |
<ForVolumeSpec> |
<OnVolumeSpec> |
<MaxSizeSpec> |
The MaxSizeSpec value must be 1 MB or greater and must be expressed in one of the following units: KB, MB, GB, TB, PB, or EB. If no unit is specified, MaxSizeSpec uses bytes by default. |
Examples |
To resize shadow copy of volume C on volume D, with a maximum size of 900MB, type: |
vssadmin resize shadowstorage /For=C: /On=D: /MaxSize=900MB |
To resize shadow copy of volume C on volume D, with no maximum size, type: |
vssadmin resize shadowstorage /For=C: /On=D: /MaxSize=UNBOUNDED |
To resize shadow copy of volume C by 20%, type: |
vssadmin resize shadowstorage /For=C: /On=C: /MaxSize=20% |
vssadmin |
Applies to: Windows Server 2022, Windows Server 2019, Windows 10, Windows 8.1, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2, Windows Server 2008 |
Displays current volume shadow copy backups and all installed shadow copy writers and providers. Select a command name in the following table view its command syntax. |
Command |
Description |
Availability |
vssadmin delete shadows |
Deletes volume shadow copies. |
Client and Server |
vssadmin list shadows |
Lists existing volume shadow copies. |
Client and Server |
vssadmin list writers |
Lists all subscribed volume shadow copy writers on the system. |
Client and Server |
vssadmin resize shadowstorage |
Resizes the maximum size for a shadow copy storage association. |
Client and Server |
waitfor |
Sends or waits for a signal on a system. This command is used to synchronize computers across a network. |
Syntax |
waitfor [/s <computer> [/u [<domain>\]<user> [/p [<password>]]]] /si <signalname> |
waitfor [/t <timeout>] <signalname> |
Parameters |
Parameter |
Description |
/s <computer> |
Specifies the name or IP address of a remote computer (don't use backslashes). The default is the local computer. This parameter applies to all files and folders specified in the command. If you don't use this parameter, the signal is broadcast to all the systems in a domain. If you do use this parameter, the signal is sent only to the specified system. |
/u [<domain>]<user> |
Runs the script using the credentials of the specified user account. By default, waitfor uses the current user's credentials. |
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