HP XP RAID Manager Software - Manual (Page 43)

7 Troubleshooting
This chapter provides troubleshooting information.
General troubleshooting
Table 20 Troubleshooting for Snapshot
Causes and Solutions Problem
Causes: Cannot install Snapshot.
• Shared memory for the V-VOL management area is not installed.
•
Shared memory is not set for the V-VOL management area.
• Shared memory for the differential tables is not installed.
Solutions:
•
Call HP Technical Support and check if the shared memory for the V-VOL management area
and the differential tables is installed.
•
Call HP Technical Support and check if the shared memory for the V-VOL management area
is set correctly.
Cause: The pool is blocked. Pool information is not
displayed.
Solution: Implement the measures shown in “Recovering a blocked pool” (page 46) .
Cause: The pool-VOLs are blocked. A pool is blocked.
Solution: Implement the measures shown in “Recovering a blocked pool” (page 46) . After the
problems are solved, make sure to complete the SIMs. See “Processing pool-related SIMs”
(page 46) .
Causes: Pool usage rate exceeds the
threshold.
•
Too much Snapshot data is stored in the pool.
•
Capacity of the pool is insufficient.
•
Threshold of the pool is too low.
Solutions:
•
Delete the Snapshot data which is less important or delete the old Snapshot data to decrease
the usage rate of the pool.
• Add more pool volumes to increase the capacity of the pool.
•
Set a larger value to the threshold of the pool.
After the problems are solved, make sure to complete the SIMs. See “Processing pool-related
SIMs” (page 46) .
Note: You need unused volumes to add the pool volumes. If there is no unused volume, you need
to create new volumes or ask HP Technical Support to add the hard disks. Therefore, it may take
time to solve the problem.
Causes: Cannot add pool-VOLs.
•
The maximum 1,024 pool-VOLs are already set in the pool.
• Available pool management block in the V-VOL management area in the shared memory is
insufficient.
•
Pool-VOL requirements were not followed.
Solutions:
• Add pool-VOLs to another pool.
•
Initialize the V-VOL management area.
•
Check pool-VOLs requirements in “Data pool requirements and restrictions” (page 11) .
General troubleshooting 43