Chapter 4 Changing the Multipath Configuration (FC/FCoE Connection for RHEL-AS4, RHEL-ES4, RHEL5, SLES9, or SLES10)
4.1 Storage System and LU Addition
FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux
Copyright 2014 FUJITSU LIMITED
P2U3-0031-15ENZ0
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4.1
Storage System and LU Addition
4.1.1
Addition without Server Rebooting
Using the "mpdconfig" command, extra storage systems and LUs can be added without shutting down the
server. Use the following procedure.
Procedure
1
Attach the hardware.
Proceed as follows, depending on the addition target.
•
Storage system addition
Set up the storage system so that its LUs are accessible to the server, and then connect it to the
server. For details on the settings, refer to the storage system manual.
•
LU addition
Add a LU in the storage system. For details on adding LUs, refer to the storage system manual.
2
Incorporate the new hardware using the "mpdconfig -a" command.
[Example]
The "iompadm rescan" command can also be used to incorporate the new hardware.
[Example]
3
When a new storage system is added, an enquiry is sent regarding the storage system
recognition order.
If by-id names are not being used, or are being used with FUJITSU Software PRIMECLUSTER Global Disk
Services installed, follow the on-screen instructions.
Red Hat Enterprise Linux AS v.4, Red Hat Enterprise Linux ES v.4, and SUSE Linux Enterprise Server
9 require the server be rebooted for storage system addition.
When adding LUs without server rebooting, make sure that all paths are in online status.
# /opt/FJSVmpd/bin/mpdconfig -a
# /opt/FJSVmpd/bin/iompadm rescan
