HP StorageWorks External Storage XP user guide for the XP12000, XP10000, SVS200 (T1706-96009, October 2007)

CAUTION:
Note the following for the Disconnect Subsystem and Disconnect Volume commands:
• After executing the Disconnect Subsystem or Disconnect Volume command, click the Refresh button
(
)ontheComman
d View XP or XP Remote Web Console main pane to update the information,
and check the current progress status.
• If you execute the Disconnect Subsystem or Disconnect Volume command when I/Os from an
open-system h
ost are in progress, host I/Os to the specified volume are forcibly stopped. When
executing the
Disconnect Subsystem or Disconnect Volume command, stop host I/Os, and unmount
thevolumefr
om the host.
• Ifthevolumeisonlinefromthemainframehost,youcannotexecutetheDisconnect Subsystem or
Disconnect Volume command. Stop host I/Os to the volume, and perform the Vary Offline operation.
• You cannot ex
ecute the Disconnect Subsystem or Disconnect Volume command for external LUs
that include LDEVs that are set as the copy pair for Flex Copy XP, Business Copy XP, ShadowImage
for z/OS, Continuous Access XP Journal, Universal Replicator for z/OS, Continuous Access XP,
TrueCopyforz/OS,orSnapshotXP.However,ifthecopypairstatusisPSUE,youcanexecutethese
commands.
When the external LU is set as a pool volume (pool-VOL) and the Snapshot XP pair's
status is PAIR, you can execute these commands.
• You cannot execute the Disconnect Subsystem ore Disconnect Volume command for external LUs
that inclu
de LDEVs for which Auto LUN XP's migration processing is in progress.
• When executing the Disconnect Subsystem or Disconnect Volume command, the Ex-Dev. Status
column in the Device list changes to Cache Destage. Even if there is no data left in cache memory,
the displayed status remains as Cache Destage,untiltheDisconnect Subsystem or Disconnect
Volume co
mmand processing is complete.
• When the Disconnect Subsystem or Disconnect Volume commandisexecutedandalldatain
cache memory is written to the external LU, the Ex-Dev. Status column in the Device list changes to
Disconn
ect.
Disconnecting all external LUs in an external array (Disconnect Subsystem)
1. In the LU Operation pane, select External Devices in the Device tree. Connected external arrays
appear in the Device list.
2. In the Device list, right-click the external array you want to disconnect from the local array, and
select Disconnect Subsystem.
110
Configuring external LUs