Product manual

VTrak E-Class Product Manual
350
Deleting a Disk Array or Logical Drive
Why can’t I select Delete Disk Array or Delete Logical Drive?
You must have Power or Super User Rights to delete a disk array or logical
drive. See your Administrator about upgrading your access rights, if
necessary. Also see “Making User Settings” on page 85 or page 218.
Can I delete a Logical Drive without deleting the Disk Array?
Yes. See “Deleting a Logical Drive” on page 136.
Rebuilding a Disk Array
I replaced a failed physical drive with a used but known-good drive. The
system does not rebuild to it. Why not?
The replacement drive was previously used in a different disk array or logical
drive. You must clear (erase) the Reserve Sector of the replacement disk
drive before the system can rebuild to it. “Clearing a Stale or a PFA
Condition” on page 120 or page 178.
Migrating a Disk Array
When I try to migrate a disk array from one RAID level to another, why
doesn't the controller let me do it?
Most RAID levels have a minimum and maximum number of physical drives.
Be sure you have the correct number of drives available for the target disk
array. See “RAID Levels” on page 261 and “RAID Level Migration” on
page 275.
I want to add two more drives to my RAID 1 disk array. Why won't the
controller let me migrate it?
A RAID 1 disk array uses only two disk drives. In this case, you can add two
physical drives, then convert to a RAID 10 disk array. Most RAID levels have
a minimum and maximum number of disk drives. See “RAID Levels” on
page 261.
Media Patrol and PDM
Media Patrol and PDM are enabled on my system. But they never report
anything.
This is a good sign. Media Patrol and PDM operate transparently until they
find a problem on a physical drive.