Creating Snapshots And Views - Lenovo ThinkServer RD330 Software User's Manual

MegaRAID SAS Software User Guide
4.10.3

Creating Snapshots and Views

The capacity is dependent on how write-intensive the application is that you are
taking snapshots of. The available capacity is the largest free block of capacity on
the Snapshot Repository virtual drive.
NOTE: If you use all of the space of the Repository virtual drive, there will be insufficient
space to create a snapshot and a view.
CAUTION: Copy all of your data to another virtual drive before you select this option. If
there is any existing data on this virtual drive, it will be lost.
7. Click Next.
The snapshot settings screen appears as shown in
8. Click Finish.
A confirmation dialog box appears.
9. Confirm that you want to make these selections.
This virtual drive becomes a snapshot repository. Use it only for storing
snapshot-related data.
CAUTION: After you enable snapshots on this virtual drive, you cannot change the
allocated percentage of capacity or the snapshot repository without first disabling
snapshots and losing any snapshot data.
You can use WebBIOS to create up to eight snapshots of a volume. WebBIOS shows the
snapshots in chronological order from the oldest to the newest. Each snapshot is a PiT
snapshot of the virtual drive that is the Snapshot Base. First, create the Snapshot Base
virtual drive and then create the snapshot.
After you create the snapshots, you can create views of the PiT snapshots. You can
search the views to find a snapshot that does not contain the corrupt data or a
snapshot that contains the deleted data, depending on the situation. After you create a
snapshot, you can reboot and roll back to a snapshot to restore data.
Follow these steps to create a snapshot.
1. Enable MegaRAID Recovery.
See Section 4.10.2, Enabling the Recovery Advanced
to enable MegaRAID Recovery in WebBIOS.
2. Click on the virtual drive in the Logical View on the main screen to go to the
operations for the virtual drive.
The Virtual Drive screen appears, as shown in Figure 94.
Chapter 4: WebBIOS Configuration Utility
Figure 101.
Software, for the procedure used
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Using MegaRAID Recovery
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