Running Background Activities
To run a background activity from the Background Activities tab:
1.In Tree View, click the Subsystem 
icon.
2.In Management View, click the Background Activities tab and select one of the following from the dropdown menu.
•Media Patrol
•Rebuild
•PDM
•Transition
•Initialization
•Redundancy Check
3.In the next screen, make the choices as requested.
4.Click the Start button.
Running Media Patrol
Media Patrol checks the magnetic media on physical drives. When it finds the specified number of bad blocks, it will trigger PDM.
You can also schedule Media Patrol to run automatically.
To run Media Patrol:
1.In Tree View, click the Subsystem 
icon.
2.From the dropdown menu on the Background Activities tab, select Start Media Patrol.
3.In the next screen, click the Start button.
Running PDM
Predictive Data Migration (PDM) migrates data from the suspect physical drive to a spare disk drive, similar to Rebuilding. But unlike Rebuilding, PDM acts before the disk drive fails and your Logical Drive goes Critical.
To run PDM:
1.In Tree View, click the Subsystem 
icon.
2.In Management View, click the Background Activities tab and select Start Media Patrol from the dropdown menu.
3.In the next screen, select the Source and Target physical drives.
The suspect physical drive is the source. The replacement physical drive is the target.
4.Click the Start button.
Viewing Scheduled Activities
To view scheduled activities for this subsystem:
1.Click the Subsystem 
icon Tree View.
2.Click the Scheduler tab in Management View.
Scheduling an Activity
To set a scheduled activity for this subsystem:
1.Click the Subsystem 
icon Tree View.
2.From the dropdown menu on the Scheduler tab, choose an item:
•Media Patrol
•Redundancy Check
•Battery Reconditioning
•Spare Drive Check
28 | EXCEL MERIDIAN DATA |
