HP StorageWorks XP Remote Web Console Software User Manual
Page 27
2.
Execute the Check Paths & Restore Vol. command. For instructions, see
status and resuming external LU operations (Check Paths & Restore Vol.)
.
CAUTION:
When powering the external array off after executing the Disconnect Subsystem
command, you cannot access the mapped external LU from the local array when you initially turn
on the external array. You must execute the Check Paths & Restore Vol. command to resume using
the mapped external LU. The Check Paths & Restore Vol. command checks the defined information
and the actual status of the external LU mapped as a local array internal LDEV. If the external LU
is ready to be used as a mapped volume, the LU is set to accept I/Os and you can resume using
the LU as a mapped volume.
Turning On or Off Power Supply of Both local and external arrays
This section explains how to turn on or off the power supply of both the local and external array
using XP Business Copy Software.
To turn OFF the power supply of both arrays:
1.
Stop all read or write I/Os to the local array.
2.
Split all HP XP Business Copy pairs (pairsplit operation). For details on the pairsplit operation,
see HP XP Business Copy user guide for XP12000/XP10000 Disk Arrays and SVS 200.
3.
Turn off the power supply of the local array.
CAUTION:
Make sure that the power supply of the local array is completely off and then
go on to the next step.
4.
Turn off the power supply of the external array.
CAUTION:
Make sure that the power supply of the external array is completely off.
To turn ON the power supply of both arrays:
1.
Turn on the power supply of the external array.
CAUTION:
Make sure that the power supply of the external array is completely on and then
go on to the next step.
2.
Turn on the power supply of the local array.
CAUTION:
Make sure that the power supply of the local array is completely on and then
go on to the next step.
3.
Resynchronize all HP XP Business Copy pairs (pairresync operations). For details on the
pairresync operation, see HP XP Business Copy user guide for XP12000/XP10000 Disk Arrays
and SVS 200.
4.
Start the read or write I/Os to the local array.
All read and write I/Os with Fibre Channel connections, iSCSI connections, and NAS
connections should be started.
Using mapped external LUs from the host connected to the local array
The following sections describe examples of using the mapped external LU from the host connected
the local array. There are different ways of using the mapped external volume.
•
Writing new data to mapped external LUs
•
Using existing data in mapped external LUs
Using mapped external LUs from the host connected to the local array
27