vssadmin resize shadowstorage
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. |
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%