Using MegaRAID Advanced Software : Recovery Advanced Software : Recovery Scenarios

Recovery Scenarios

There are three primary scenarios in which to use the Recovery feature:

1.

Restore the missing or deleted files (restore from view) with the following steps:

a.

Discover which file is missing or corrupted.

b.

Review the Snapshot views of the file content (also known as mounting the snapshot) from each PiT until you find an earlier version of the missing or corrupted file. A mounted view appears as another drive letter in the Windows Explorer window.

c.

Drag and drop the earlier version of the file from the Snapshot view back into the online storage volume that was the source of the snapshot.

2.

If there is a corrupt volume or operating system, roll back the volume to a previous state with the following steps:

a.

Restart the system, and press Ctrl+H during the power-on self-test (POST).

b.

In the WebBIOS™ window, select the corrupted virtual drive, and, on the next dialog that appears, select the Adv Opers option.

c.

Select Rollback, and designate the most recent PiT from the drop-down list.

d.

Click Go, and exit WebBIOS.

The system reboots.

e.

Begin debug and verification procedures on the volume.

You can follow these same steps to roll back to previous PiTs.

3.

Reduce the risk of extended downtime during the application updates and upgrades in the IT center with the following steps:

a.

When the application is offline, take a snapshot of the application volume.

b.

Install each patch individually, and test for any new defects that might have been introduced.

c.

Take a snapshot after you test each patch, and determine that it is clean.

d.

If a defect is introduced, roll back to the previous installation, and bypass the installation of the defective patch.

NOTE  If the volume is still damaged, continue to select from the next most current PiT to the oldest.