SANtricity 11.8 Commands ( CA08871-194 ～ 196 )
Set snapshot group repository volume capacity
The set snapGroup increase/decreaseRepositoryCapacity command increases or decreases the capacity of a snapshot group repository volume.
Supported Series
This command applies to any individual storage system, including the HB2100/HB2200/HB2300, HB5100/HB5200, AB6100 and AB3100 series, as long as all SMcli packages are installed.
Roles
To execute this command on an HB2100/HB2200/HB2300, HB5100/HB5200, AB6100, or AB3100 storage system, you must have the Storage Admin role.
Syntax for increasing capacity
set snapGroup ["snapGroupName"] increaseRepositoryCapacity (repositoryVolumes="repos_xxxx" | repositoryVolumes=((volumeGroupName [capacity=capacityValue])) | repositoryVolumes=((diskPoolName [capacity=capacityValue])))
Syntax for decreasing capacity
set snapGroup ["snapGroupName"] decreaseRepositoryCapacity count=numberOfVolumes
Parameters
| Parameter | Description |
|---|---|
|
The name of the snapshot group for which you want to increase capacity or decrease capacity. Enclose the snapshot group name in double quotation marks (" ") inside of square brackets ([ ]). |
|
The name of the repository volume for which you want to increase capacity. An available standard volume is added to the repository volume to increase the capacity of the repository volume. You have two options for defining the name of a repository volume:
The name of an existing repository volume consists of two parts:
Enclose the name of the existing repository volume in double quotation marks (" "). If you want to create a new repository volume when you run this command you must enter the name of either a volume group or a disk pool in which you want the repository volume. Optionally, you can also define the capacity of the repository volume. If you want to define the capacity you can use these values:
If you do not use the capacity option, the storage management software sets the capacity to 20 percent of the base volume capacity. When you run this command the storage management software creates the repository volume for the snapshot volume. |
|
The number of repository volumes that you want to remove from the snapshot group. Use integer values. |
Notes
You can use any combination of alphanumeric characters, underscore (_), hyphen (-), and pound (#) for the user label. User labels can have a maximum of 30 characters.
The repository volume name is automatically created by the storage management software and the firmware when you create a new snapshot group. You cannot rename the repository volume because renaming the repository volume breaks the linkage with the snapshot images.
A snapshot group repository volume is an expandable volume that is structured as a concatenated collection of up to 16 standard volume entities. Initially, an expandable repository volume has only a single element. The capacity of the expandable repository volume is exactly that of the single element. You can increase the capacity of an expandable repository volume by attaching additional standard volumes to it. The composite expandable repository volume capacity then becomes the sum of the capacities of all of the concatenated standard volumes.
A snapshot group repository volume must satisfy a minimum capacity requirement that is the sum of the following:
-
32 MB to support fixed overhead for the snapshot group and for copy-on-write processing.
-
Capacity for rollback processing, which is 1/5000th of the capacity of the base volume.
The minimum capacity is enforcement by the controller firmware and the storage management software.
