Storage System Reduction; Reduction Without Server Rebooting - Fujitsu ETERNUS Multipath Driver V2 User Manual

Chapter 6 Changing the Multipath Configuration (iSCSI Connection for RHEL5, SLES9, or SLES10)

6.2 Storage System Reduction

8
Use the "mpdconfig -s" command to set the recognition order.
[Example]
# /opt/FJSVmpd/bin/mpdconfig -s
6.2 Storage System Reduction
6.2.1

Reduction without Server Rebooting

Using the "mpdconfig" command, storage systems can be removed without shutting the server. Use the
following procedure.
• SUSE Linux Enterprise Server 9 requires the server be rebooted for storage system reduction.
• When removing the storage systems and LUs without server rebooting, completely halt all access to the
storage systems or LUs that are to be removed. If access cannot be halted, follow the procedures
described in
Procedure
1
Detach the hardware.
Log out of the iSCSI target and disconnect the storage system to be removed from the server.
2
Delete the removed hardware from the Multipath Driver target list using the "mpdconfig -d"
command.
[Example]
# /opt/FJSVmpd/bin/mpdconfig -d
3
If a storage system is removed and the recognition order function is being used, execute the
"mpdconfig -s" command to reconfigure the recognition order.
[Example]
# /opt/FJSVmpd/bin/mpdconfig -s
However, if the storage system reduction reduces the number of storage systems connected to the
server to one or less, execute the "mpdconfig -c" command to clear the recognition order setting
instead.
"6.2.2 Reduction with Server Rebooting" (page
FUJITSU Storage ETERNUS Multipath Driver V2 User's Guide for Linux
Copyright 2014 FUJITSU LIMITED
75).
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End of procedure
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