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Chapter 6 Changing the Multipath Configuration (iSCSI Connection for RHEL5, SLES9, or SLES10)
6.1 Storage System Addition
6.1
Storage System Addition
6.1.1
For Red Hat Enterprise Linux 5 or SUSE Linux Enterprise Server 10
Use the following procedure to add extra storage systems.
When adding storage systems, the device names (sd*) may be changed. Alter the settings for any
applications and OSs that access to the storage system as necessary. If by-id names are used, this problem
does not occur.
Procedure
1
Attach the hardware.
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.
2
Set the server iSCSI service.
Set iSCSI initiator/iSCSI target information and log in to the iSCSI target. Make sure that automatic login
to the iSCSI target has been specified. Refer to storage systems User's Guide -Server Connection- or any
other relevant manuals and "Appendix 2" in the software information (/opt/FJSVmpd/manual/english/
readme.pdf) for details about iSCSI connection.
3
Use the "iompadm info" command to check the result.
The new storage system should be automatically recognized and incorporated in the list.
[Example]
# /opt/FJSVmpd/bin/iompadm info
4
Set its Max Throttle value.
Execute the "mpdconfig -m" command to set a Max Throttle value for the new storage system.
Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle
value computation method.
[Example]
# /opt/FJSVmpd/bin/mpdconfig -m
5
If by-id names are not being used, or are being used with FUJITSU Software PRIMECLUSTER
Global Disk Services installed, use the "mpdconfig -s" command to set the recognition order.
[Example]
# /opt/FJSVmpd/bin/mpdconfig -s
FUJITSU Storage ETERNUS Multipath Driver V2 User's Guide for Linux
Copyright 2014 FUJITSU LIMITED
72
End of procedure
P2U3-0031-15ENZ0
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