HP XP P9500 Storage - Manual (Page 59)

Explanation Description Code
The pair was suspended and pair status has changed to
PSUE. PSUE SUSPEND 4790
The copy has terminated abnormally for reasons other than
above. COPY ABNORMAL END 47D0
Initialization processing has begun. INITIALIZE START 47E9
Initialization processing has terminated normally. INITIALIZE END 47EA
Initialization processing has terminated abnormally. INITIALIZE ENDED ABNORMAL 47EB
Related information
•
“View Histories window” (page 85)
Maintaining the system
Some maintenance tasks are a response to behavior discovered during system monitoring. Other
tasks are done to keep the system in tune with your changing requirements.
Related information
•
“Removing reserve attribute from a volume” (page 59)
•
“Pair operations during system, device maintenance” (page 59)
Removing reserve attribute from a volume
You can remove the reserve attribute from a volume.
Prerequisite information
•
The volume is not assigned to a pair (SMPL status).
1. In the tree, click Replications > Local Replications.
2. Click Reserve Volumes tab.
3. In the Remove Reserve Volumes window, select the volume and click Remove Reserve Volumes.
4. Enter a Task Name and click Apply.
Pair operations during system, device maintenance
The following recommendations are provided for performing pair operations when maintenance
on P9500 and related devices is underway. Review the following to check whether pairs and pair
operations are affected when maintenance is performed on physical and logical devices.
•
If P9500 cache maintenance is performed during a period of high I/O usage, one or more
pairs may suspend. Reduce the I/O load before performing cache maintenance.
•
Physical devices that contain LDEVs used by BC can be maintained independently of pair
operations and pair status. Maintenance does not affect BC.
•
If a physical device failure occurs, pair status is not affected because of the RAID architecture.
•
If a physical device failure requires the storage system to utilize dynamic sparing or automatic
correction copy, pair status is not be affected.
•
If an LDEV failure occurs, the storage system suspends the pair.
•
Maintenance is restricted for LDEVs used by a pair. However, the format operation is allowed
(even when pair is suspended (PSUE status).
•
Maintenance is also restricted for LDEVs in which the Reserve attribute is set for a volume.
To maintain these LDEVs, suspend or delete the pair, and/or remove the reserve attribute.
Maintaining the system 59