Chapter 5: Management with the CLU
151
Auto Rebuilding
Use this feature to enable the automatic rebuilding of a logical drive that has
gone critical. This function must be enabled in order for a hot spare drive to work.
See Hot Spare Policy, above. To rebuild a logical drive manually, see page 155.
1.
Press 8 and Enter to access the Auto Rebuilding Option.
Enable auto rebuilding for Logical Drive 2(y/n)?>
y
Set to global hot spare policy for Logical Drive 2(y/n)?>
n
2.
Press Y and Enter to enable Auto Rebuilding. Press N and Enter to leave the
setting unchanged.
3.
Type Y and Enter to enable a Global hot spare policy for this logical drive.
Type N and Enter to enable a Dedicated hot spare policy.
Available free Physical Drive(s):
8
9
Choose the free Physical Drive for the dedicated hot spare>
8
4.
If you select a Dedicated hot spare policy, select the hot spare drive.
The Screen returns to the Modify Logical Drive Priorities menu.
PDM Auto Start
PDM (Predictive Data Migration) is a maintenance operation. VTrak checks
the bad block remapping table and keeps a count of disk drive errors. When
these reach the user-specified limits, PDM will migrate the data from the
suspect disk drive to a replacement.
This action anticipates and prevents a disk drive failure and resulting Critical
Status. The logical drive is available at all times. To perform PDM manually,
see page 156.
1.
Press 5 and Enter to access the PDM Auto Start Option.
PDM Auto Start: Disabled
Enable PDM Auto start(y/n)?>
y
Current PDM Threshold:
Remap percentage threshold: 0%
Error count threshold: 0
---------------------------------------------------
PDM Threshold
1. Remap Percentage
2. Error Count
R. Return to Previous Menu
Please enter your menu choice>
1