Dell POWERVAULT MD3600I - Manual (Page 159)

– Free capacity on same disk group as base (recommended)
– Free capacity on different disk group
– Unconfigured capacity (create new disk group)
7. Enter the snapshot repository virtual disks capacity as a percentage of the source virtual disks capacity and click
Next.
The Specify Virtual Disk Parameters window is displayed.
8. In the Snapshot virtual disk parameters area, select the relevant mapping option, you can select:
– Automatic
– Map later with Storage Partition
9. In the Snapshot repository virtual disk parameters area, enter the system behavior when:
10. Click Next.
The Preview window containing the summary of the snapshot virtual disk is displayed.
11. Click Finish.
The Completed window is displayed.
12. Click OK.
13. In the Host Mappings tab, assign mappings between the snapshot virtual disk and the host that accesses the
snapshot virtual disk.
14. To register the snapshot virtual disk with the host operating system, run the host-based hot_add utility.
15. To associate the mapping between the storage array name and the virtual disk name, run the host-based
SMdevices utility.
Specifying Snapshot Virtual Disk Names
Choose a name that helps you associate the snapshot virtual disk and snapshot repository virtual disk with its
corresponding source virtual disk. The following information is useful when naming virtual disks.
By default, the snapshot name is shown in the Snapshot virtual disk name field as:
<source-virtual disk-name>—<sequence-number>
where sequence-number is the chronological number of the snapshot relative to the source virtual disk.
The default name for the associated snapshot repository virtual disk that is shown in the Snapshot repository virtual disk
field is:
<source-virtual disk-name>—R<sequence-number>
For example, if you are creating the first snapshot virtual disk for a source virtual disk called Accounting, the default
snapshot virtual disk is Accounting-1, and the associated snapshot repository virtual disk default name is Accounting-
R1. The default name of the next snapshot virtual disk you create based on Accounting is Accounting-2, with the
corresponding snapshot repository virtual disk named as Accounting-R2 by default.
• Whether you use the software-supplied sequence number that (by default) populates the Snapshot virtual disk
name or the Snapshot repository virtual disk name field, the next default name for a snapshot or snapshot
repository virtual disk still uses the sequence number determined by the software. For example, if you give the
first snapshot of source virtual disk Accounting the name Accounting-8, and do not use the softwaresupplied
sequence number of 1, the default name for the next snapshot of Accounting is still Accounting-2.
• The next available sequence number is based on the number of existing snapshots of a source virtual disk. If you
delete a snapshot virtual disk, its sequence number becomes available again.
• You must choose a unique name for the snapshot virtual disk and the snapshot repository virtual disks, or an
error message is displayed.
• Names are limited to 30 characters. After you reach this limit in either the snapshot virtual disk name or the
Snapshot repository virtual disk name fields, you can no longer type in the field. If the source virtual disk is 30
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