User manual

Chapter 5: Management with the CLU
153
The current Operation is reported for each logical drive as follows:
• INIT – Initialization, done at logical drive creation. The logical drive is
clearing old, unusuable data from the disk drives.
• RBLD – Rebuild, a repair operation. The logical drive is rebuilding data or
parity to a replacement drive. The target disk drive is cited by ID number.
The logical drive is available
• SYNC – Synchronization, a maintenance operation. The logical drive checks
the data and parity and corrects inconsistencies. The logical drive is
available
• PDM – Predictive Data Migration, a maintenance operation. The logical drive
moves data from a suspect disk drive to a replacement. The target disk drive
is cited by ID number. This action anticipates and prevents a disk drive
failure and resulting Critical Status. A replacement disk drive is required. The
logical drive is available
• RC – Redundancy Check. The logical drive is checking data to verify that
redundancy or parity match. Unlike Synchronizing, no corrections are made.
The logical drive is available
• MP – Media Patrol. The logical drive is checking disk drives to verify the
condition of the magnetic media. Unlike Synchronizing, no corrections are
made. The logical drive is available
Maintenance Activity Monitor
The Maintenance Activity Monitor displays the progress of various logical drive
operations on the CLU screen approximately every 15 seconds, as shown below.
LogDrv1(LD #1) RBLD 15% on PD 5
LogDrv2(LD #2) SYNC 83%
LogDrv1(LD #1) RBLD 16% on PD 5
LogDrv2(LD #2) SYNC 84%
1. Press 1 and Enter to access the Maintenance Activity Monitor.
Maintenance activity monitor is currently running.
When any maintenance activity occurs e.g. rebuilding,
the maintenance monitor will display notification
message on screen.
Stop maintenance activity monitor(y/n)?>y
Maintenance activity monitor stopped now
Press Enter key to return
2. Press Y and Enter to toggle the monitor between start and stop.
3. Press Enter to return to the Maintenance menu.