Product manual

Chapter 4: Management with WebPAM PROe
71
Running Background Activities
To run a background activity from the Background Activities tab:
1. In Tree View, click the Subsystem icon.
2. From the dropdown menu on the Background Activities tab, choose one of
the following items:
• Media Patrol – See “Running Media Patrol” below
• Rebuild – See “Rebuilding a Disk Array” on page 148
• PDM – See “Running PDM” on page 71
• Transition – See “Transitioning a Disk Array” on page 150
• Initialization – See “Initializing a Logical Drive” on page 155
• Redundancy Check – See “Running Redundancy Check” on page 155
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. See “Making Background
Activity Settings” on page 70. Also see “Media Patrol” on page 301.
You can also schedule a Media Patrol. See “Scheduling an Activity” on page 72.
To run Media Patrol:
1. In Tree View, click the Subsystem icon.
2. From the dropdown menu on the Background Activities tab, choose 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
a disk drive fails and your Logical Drive goes Critical.
You an also run PDM on a specific disk array, see “Running PDM on a Disk
Array” on page 150. Also see “Predictive Data Migration (PDM)” on page 302.
To run PDM:
1. In Tree View, click the Subsystem icon.
2. From the dropdown menu on the Background Activities tab choose Start
PDM.