Dell PowerVault MD3220i Owner's Manual - Page 153
Creating the Snapshot Using the Advanced Path, Create Snapshot Virtual Disk
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If you want to use a snapshot regularly, such as for backups, use the Disable Snapshot and Re-create Snapshot options to reuse the snapshot. Disabling and re-creating snapshots preserves the existing virtual disk-to-host mappings to the snapshot virtual disk. Creating the Snapshot Using the Advanced Path NOTE: Removing the drive letter of the associated virtual disk in Windows or unmounting the virtual drive in Linux helps to guarantee a stable copy of the drive for the Snapshot. After first preparing the host server(s) as specified in the preceding procedure, complete the following steps to create a virtual disk snapshot using the advanced path: 1 Stop the host application accessing the source virtual disk, and unmount the source virtual disk. 2 In the AMW, select the Logical tab, select a valid source virtual disk. 3 Select Virtual Disk Snapshot Create. Alternatively, you can rightclick the source virtual disk and select Create Snapshot Virtual Disk from the pop-up menu. The Create Snapshot Virtual Disk Wizard - Introduction dialog appears. 4 Select Advanced, and click Next. The Specify Names window is displayed. 5 Enter the Snapshot visual disk name and the Snapshot repository virtual disk name and click Next. The Allocate Capacity window is displayed. 6 In the Capacity allocation area, select: • 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. Configuration: Premium Feature-Snapshot Virtual Disks 153
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