HP XP Racks - Manual (Page 65)

NOTE: When Yes is selected, the data remaining in cache is not guaranteed.
•
Cancel to disconnect the volume or volumes and then perform the delete operation again.
You cannot continue the operation if No is selected.
9. Click Finish.
10. In the Confirm window, check settings and accept the task name shown or enter a new one.
When satisfied click Apply.
Related Topics
•
“Delete External Volumes wizard” (page 127)
Powering off and on local, external storage systems
You must temporarily halt External Storage functionality before powering off external storage
systems. When the systems are powered on, you resume all functions.
The instructions in these topics should be closely followed.
•
Prerequisite operations are required.
•
A specific order must be followed:
When powering off both local and external systems, the local system must be turned off
first, then the external system. ◦
◦ To power on both systems, the external system must be turned on first, then the local
system.
Requirements for external storage system maintenance
You must disconnect the external system and delete external volume mapping before making
changes on the external system. When the changes are concluded, you reconnect the system and
remap the external volume.
The following changes to the external system require the removal and remapping of the external
volume:
•
Changing WWNs of target ports that connect to the local storage system
•
Changing the serial number of the external system
•
Changing LUNs of volumes in the external system
•
Reducing the volume capacity of the external volume
•
Modification on the host connected directly to a external storage system.
If you want to change the WWNs of part of the target ports that are connected to the local storage
system, you do not need to delete the volumes that are mapped to the local storage system.
Procedure 8 To change the WWNs of the external storage system without deleting the external
volume mapping
1. Change the WWN of the external storage.
See the HP XP7 Provisioning for Open Systems User Guide and the HP XP7 Provisioning for
Mainframe Systems User Guide for detailed procedures. Changing the WWN blocks the
external path that uses the target port with a WWN that has been changed.
2. Add an external path between the local storage system and target port with a WWN that
has been changed
3. Delete the external path that was blocked in step 1.
Powering off and on local, external storage systems 65