Media Patrol
Media Patrol is a routine maintenance procedure that checks the magnetic media on each disk drive. Media Patrol checks all physical drives assigned to pools and spare drives. Media Patrol does not check un-configured drives.
Media Patrol checks are enabled by default on all pools and spare drives.
Unlike Synchronization and Redundancy Check, Media Patrol is concerned with the condition of the media itself, not the data recorded on the media. If Media Patrol encounters a critical error, it triggers PDM if PDM is enabled on the pool.
Once Media Patrol is runinng, each disk drive will checked, sector by sector.
Media Patrol has three status conditions:
• Running – Normal. You can access your pools at any time.
• Yield – Temporary pause while a read/write operation takes place.
• Paused – Temporary pause while another background runs. Or a pause initiated by the user.
How to run Media Patrol:
1.Click the Administration tab.
2.Click the Background Activity menu.
The list of background activities appears.
3.Click the Start button of Media Patrol.
Stopping, Pausing or Resuming
To stop, pause or resume Media Patrol:
1.Click the Administration tab.
2.Click the Background Activity menu.
The list of Current Background Activity Status appears.
3.Expand the sign "+" and click the right gear icon of Media Patrol, then click the Stop, Pause or Resume menu.
Please also take a look at main advantages of PDM (Predictive Data Migration):
