Product manual

Galaxy G3G12 / G3G16 Installation and Hardware Reference Manual
132 Section 4 Maintenance with GAM
To enable Auto Rebuild, see Making B.
To create a spare drive, see
Creating a S.
For more information, see “Hot Spare Drive(s)”.
Rebuilding Manually
If a physical drive has failed, identify and replace the drive, then rebuild the disk array as described below:
1. Click the Subsystem icon in Tree View.
2. Click the Disk Arrays
icon.
3. Click the Disk Array
icon.
If there are multiple disk arrays, choose the icon with the yellow !.
4. From the dropdown menu the Background Activity tab, select Start Rebuild.
5. Select the Source physical drive.
This is a remaining functional physical drive in the disk array.
6. Select the Target physical drive.
This is the replacement physical drive.
7. Click the Submit button.
The Disk Array Background Activity tab shows the rebuild progress on the replacement (target) physical
drive. Depending the size of the physical disk involved, this process will take some time.
To view more information, click the Rebuild on PDx link.
To set Rebuild priority, see
Making B.
Running Media Patrol on a Disk Array
Media Patrol checks the magnetic media on physical drives. When it finds the specified number of bad
blocks, it will trigger PDM. See
Making B and Running P.
You can schedule Media Patrol to run automatically, see
Scheduling an A.
To start Media Patrol:
1. Click the Subsystem
icon in Tree View.
2. Click the Disk Arrays
icon.
3. Click the Disk Array
icon.
4. From the dropdown menu the Background Activities tab, choose Start Media Patrol.
5. Click the Start button.
Running PDM on a Disk Array
Predictive Data Migration (PDM) migrates data from the suspect physical drive to a spare physical drive,
similar to Rebuilding. But unlike Rebuilding, PDM acts before the disk drive fails and your Logical Drive
goes Critical.
See “Predictive Data Migration (PDM)” in chapter 7.
To start PDM:
1. Click the Subsystem
icon in Tree View.
2. Click the Disk Arrays
icon.
3. Click the Disk Array
icon.
4. Click the Background Activities tab in Management View.
5. From the dropdown menu the Background Activities tab, choose Start PDM.