Dell PowerVault MD 32XX/36XX Series Storage Arrays CLI Guide

Create Snapshot Virtual Disk

Description

This command creates a snapshot virtual disk for snapshot images of a base virtual disk. You can assign the new snapshot virtual disk to an existing repository disk group or disk pool, or you can create a new repository disk group or disk pool if one does not already exist.

NOTE: You cannot use this command for a snapshot image that is used in online virtual disk copy.

Syntax

create snapVirtualDisk userLabel="
                                 snapVirtualDiskName" snapImageID="
                                 snapImageID"
                                 [repositoryVirtualDisk="repos_xxxx" |
                                 repositoryFullLimit=
                                 percentValue]

Parameters

Parameter	Description
`userLabel`	The alphanumeric identifier (including - and _) that you want to give to a snapshot virtual disk. Enclose the snapshot virtual disk name in double quotation marks (" ").
`snapImageID`	The alphanumeric identifier of a snapshot image that you want to add to the new snapshot virtual disk. The identifier of a snapshot image is comprised of two parts: The name of the snapshot group. An identifier for the snapshot image in the snapshot group. The identifier for the snapshot image can be one of these: An integer value that is the sequence number of the snapshot in the snapshot group. `NEWEST` - Use this option when you want to show the latest snapshot image created in the snapshot group. `OLDEST` - Use this option when you want to show the earliest snapshot image created in the snapshot group. Enclose the snapshot image name in double quotation marks (" ").
`repositoryVirtualDisk`	The alphanumeric identifier of the repository virtual disk has the snapshot image. All repository identifiers have this form: `repos_xxxx` where xxxx represents a four digit numerical value. Enclose the snapshot virtual disk name in double quotation marks (" ").
`repositoryFullLimit`	The percentage of repository capacity at which you receive a warning that the snapshot repository virtual disk is nearing full. Use integer values. For example, a value of `70` means 70 percent. The default value is `75`.

Notes

You can use any combination of alphanumeric characters, underscore (_), hyphen (-), and pound (#) for the names. Names can have a maximum of 30 characters.

The identifier of a snapshot image has two parts separated by a colon (:):

The name of the snapshot group.
The identifier of the snapshot image.

For example, if you want to create a snapshot virtual disk named snapData1, using the most recent snapshot image in a snapshot group that has the name snapGroup1, with a maximum fill limit of 80 percent for the repository virtual disk, you would use this command:

create snapVirtualDisk userLabel="snapData1" snapImageID="snapGroup1:newest" repositoryVirtualDisk="repos_1234" repositoryFullLimit=80;

The repository virtual disk identifier is automatically created by the MD storage management software and the firmware when you create a new snapshot group. You cannot rename the repository virtual disk because renaming the repository virtual disk will break the linkage with the snapshot images.

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