Dell PowerVault MD3260i - Manual (Page 182)

Notes
You can use any combination of alphanumeric characters, underscore (_), hyphen (-), and pound (#) for the names.
Names can have a maximum of 30 characters.
A snapshot image is a logical point-in-time image of the contents of an associated base virtual disk. The snapshot image
is created instantly and records the state of the base virtual disk at that moment. Every snapshot image is created in the
context of exactly one snapshot group. A snapshot group is a sequence of snapshot images of the associated base
virtual disk. A snapshot group has one repository virtual disk used to save all of the data from the snapshot images. The
snapshot images in a snapshot group have a specific order. The specific order of the snapshot images enables you to
manage the snapshot images, such as restoring a specific snapshot image to the base virtual disk or deleting the
snapshot images that you no longer need.
The result of creating a snapshot image of a consistency group is a snapshot image of every member virtual disk of the
consistency group.
Create Snapshot (Legacy) Virtual Disk
Description
This command creates a snapshot virtual disk. When you use this command, you can define the snapshot virtual disk in
one of three ways:
• User-defined physical disks
• User-defined disk group
• User-defined number of physical disks for the snapshot virtual disk
If you choose to define a number of physical disks, the RAID controller module firmware chooses which physical disks
to use for the snapshot (legacy) virtual disk.
Syntax (User-Defined Physical Disks)
create snapshotVirtualDisk baseVirtualDisk="baseVirtualDiskName"
(repositoryRAIDLevel=(1 | 5 | 6)
repositoryPhysicalDisks=(enclosureID1,slotID1 ... enclosureIDn,slotIDn))
[repositoryDiskGroupUserLabel="repositoryDiskGroupName"
enclosureLossProtect=(TRUE | FALSE)
freeCapacityArea=freeCapacityIndexNumber
userLabel="snapshotVirtualDiskName"
warningThresholdPercent=percentValue
repositoryPercentOfBase=percentValue
repositoryUserLabel="repositoryName"
repositoryFullPolicy=(failBaseWrites | failSnapshot)
enableSchedule=(TRUE | FALSE)
schedule=(immediate | snapshotSchedule)]
Syntax (User-Defined Number Of Physical Disks)
create snapshotVirtualDisk baseVirtualDisk="baseVirtualDiskName"
repositoryRAIDLevel=(1 | 5 | 6)
repositoryPhysicalDiskCount=numberOfPhysicalDisks
[repositoryDiskGroupUserLabel="repositoryDiskGroupName"
physicalDiskMediaType=(HDD | SSD | unknown | allMedia)]
physicalDiskType=(SAS)
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