Dell PowerVault MD 34XX/38XX Series Storage Arrays CLI Guide

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Create Read-Only Snapshot Virtual Disk

Description

This command creates a read-only snapshot virtual disk for the snapshot images of a base virtual disk. To change a read-only snapshot virtual disk to a read/write virtual disk, use the set snapVirtualDisk convertToReadWrite command.

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" readOnly

Parameters

Parameter	Description
`userLabel`	The name 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 (" ").
`readOnly`	This parameter sets the snapshot virtual disk to read-only. This parameter is actually a Boolean; however, in the context of this command, the Boolean value is always `TRUE`. NOTE: With the `readOnly` parameter, snapshot virtual disks are not created.

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 read-only virtual disk named engData1 using the most recent snapshot image in a snapshot group that has the name snapGroup1, you would use this command:

create snapVirtualDisk userLabel="engData1" snapImageID="snapGroup1:newest" readOnly;