Dell PowerVault MD3000i User's Guide - Page 75

Creating a Snapshot Virtual Disk Using the Advanced Path, About the Advanced Path

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Creating a Snapshot Virtual Disk Using the Advanced Path About the Advanced Path Use the advanced path to choose whether to place the snapshot repository virtual disk on free capacity or unconfigured capacity and to change the snapshot repository virtual disk parameters. You can select the advanced path regardless of whether you use free capacity or unconfigured capacity for the snapshot virtual disk. Using the advanced path, you can specify the following parameters for your snapshot virtual disk: • Snapshot Virtual Disk Name - A user-specified name that helps you associate the snapshot virtual disk to its corresponding snapshot repository virtual disk and source virtual disk. • Snapshot Repository Virtual Disk Name - A user-specified name that helps you associate the snapshot repository virtual disk to its corresponding snapshot virtual disk and source virtual disk. • Capacity Allocation - This parameter allows you to choose where to create the snapshot repository virtual disk. You can allocate capacity by using one of the following methods: - Use free capacity on the same disk group where the source virtual disk resides. - Use free capacity on another disk group. - Use unconfigured capacity and create a new disk group for the snapshot repository virtual disk. Dell recommends placing the snapshot repository virtual disk within the disk group of the source virtual disk. This ensures that if drives associated with the disk group are moved to another storage array, all the virtual disks associated with the snapshot virtual disk remain in the same group. • Percent Full - When the snapshot repository virtual disk reaches the user-specified repository full percentage level, the event is logged in the Major Event Log (MEL). The default snapshot repository full percentage level is 50% of the source virtual disk. Snapshot Virtual Disks 75

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Snapshot Virtual Disks
75
Creating a Snapshot Virtual Disk Using the
Advanced Path
About the Advanced Path
Use the advanced path to choose whether to place the snapshot repository
virtual disk on free capacity or unconfigured capacity and to change the
snapshot repository virtual disk parameters. You can select the advanced path
regardless of whether you use free capacity or unconfigured capacity for the
snapshot virtual disk.
Using the advanced path, you can specify the following parameters for your
snapshot virtual disk:
•
Snapshot Virtual Disk Name
— A user-specified name that helps you
associate the snapshot virtual disk to its corresponding snapshot repository
virtual disk and source virtual disk.
•
Snapshot Repository Virtual Disk Name
— A user-specified name that
helps you associate the snapshot repository virtual disk to its corresponding
snapshot virtual disk and source virtual disk.
•
Capacity Allocation
— This parameter allows you to choose where to
create the snapshot repository virtual disk. You can allocate capacity by
using one of the following methods:
–
Use free capacity on the same disk group where the source virtual disk
resides.
–
Use free capacity on another disk group.
–
Use unconfigured capacity and create a new disk group for the
snapshot repository virtual disk.
Dell recommends placing the snapshot repository virtual disk within the
disk group of the source virtual disk. This ensures that if drives associated
with the disk group are moved to another storage array, all the virtual disks
associated with the snapshot virtual disk remain in the same group.
•
Percent Full
— When the snapshot repository virtual disk reaches the
user-specified repository full percentage level, the event is logged in the
Major Event Log (MEL). The default snapshot repository full percentage
level is 50% of the source virtual disk.