User Guide

WebPAM User Manual
56
• Command Queue – Shows NCQ (Native Command Queueing) if supported
by this disk drive.
Physical Drive Settings
Physical Drive Settings allows you to enable or disable the Write Cache on an
individual physical drive. To access the physical drive setting:
1. Click on the Physical Drive View icon in Tree View.
2. Click on the Physical Drive icon.
3. Click on the Settings tab in Management View.
4. Click the Enable or Disable option.
5. Click the Submit button.
Physical Drive Media Patrol
The Physical Drive–Media Patrol tab allows you to start Media Patrol on an
individual physical drive. You can also run Media Patrol on all physical drives at
the same time, see page 53.
Media Patrol is a routine maintenance procedure that checks the magnetic media
on each disk drive, sector by sector. Media Patrol checks physical drives
assigned to logical drives, spare drives and currently unassigned physical drives
that were once part of a logical drive or a spare. Media Patrol does not check new
physical drives that have never been configured nor physical drives assigned as
JBOD.
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 suspect sector, it will attempt to regenerate the data and
write to the suspect sector. If the write operation is successful, Media Patrol
continues checking other sectors. If the write operation fails, Media Patrol reports
the error to your PC's system log and to the physical drive’s Bad Sector Log (see
page 58). This action triggers a BSL update message and an email message if
you enabled that notification option (see page 38).
To start Media Patrol immediately: