HP XP P9500 Storage - Manual (Page 55)

Related information
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“Removing reserve attribute from a volume” (page 55)
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“Releasing a reserved consistency group” (page 55)
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“Pair operations during system, device maintenance” (page 55) e
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 (SIMPLEX 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.
Releasing a reserved consistency group
1. In the tree, click Replications > Local Replications, then click the Consistency Group tab.
2. In the Consistency Group window, select the consistency group and click Release Reserved
Consistency Group.
3. In the Release Reserved Consistency Group window, enter a Task Name, then 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.
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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.
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Physical devices that contain LDEVs used by BC Z can be maintained independently of pair
operations and pair status. Maintenance does not affect BC Z.
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If a physical device failure occurs, pair status is not affected because of the RAID architecture.
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If a physical device failure requires the storage system to utilize dynamic sparing or automatic
correction copy, pair status is not be affected.
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If an LDEV failure occurs, the storage system suspends the pair.
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Maintenance is restricted for LDEVs used by a pair. However, the format operation is allowed
even when pair is suspended (Suspend/SUSPER status).
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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 55