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Full Discussion: Changing AIX LUN paths
Operating Systems AIX Changing AIX LUN paths Post 302994008 by rbatte1 on Friday 17th of March 2017 11:37:55 AM
Old 03-17-2017
The LUN that AIX recognises will be based on the serial number it is presented with. I no longer have AIX available, but I think you can see it in the Z00 or Z01 line in lscfg -vl hdisk7 or whatever.

You should be able to add the new links in from the SAN and get wider output from lsvpcfg

If you can, then you can delete the old hdisks and remove the old SAN definitions. This way, you don't need to take them offline.
Obviously, don't start removing things until you are certian that the new hdisks (discovered with cfgmgr -S) are merged into the existing vpaths.

Make sure that you remove the old hdisks before you try to remove the LUN at the SAN end or you will get lots of hardware failure messages.


I hope that this helps.
Robin
 

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ISCSI-TARGET(8) 					    BSD System Manager's Manual 					   ISCSI-TARGET(8)

NAME
iscsi-target -- service remote iSCSI requests SYNOPSIS
iscsi-target [-46DV] [-b block length] [-f configuration file] [-p port number] [-s maximum number of sessions] [-t target name] [-v verbose arg] DESCRIPTION
iscsi-target is the server for iSCSI requests from iSCSI initiators. iscsi-target listens for discovery and login requests on the required port, and responds to those requests appropriately. Options and operands available for iscsi-target: -4 iscsi-target will listen for IPv4 connections, and respond back using IPv4. This is the default address family. -6 iscsi-target will listen for IPv6 connections, and respond back using IPv6. -b blocksize Specify the underlying block size for iSCSI storage which will be served. The possible sizes are: 512, 1024, 2048, and 4096 bytes, with the default being 512 bytes. -D When this option is specified, iscsi-target will not detach itself from the controlling tty, and will not become a daemon. This can be useful for debugging purposes. -f configfile Use the named file as the configuration file. The default file can be found in /etc/iscsi/targets. See targets(5) for more informa- tion. -p port number Use the port number provided as the argument as the port on which to listen for iSCSI service requests from initiators. -s maximum number of sessions Allow the maximum number of sessions to be initiated when connecting to the target. -t filename The target name (as it appears to the iSCSI initiator) can be specified using this flag. -V iscsi-target will print the utility name and version number, and the address for bug reports, and then exit. -v argument The amount of information shown can be varied by using this command. Possible values of argument are net to show network-related information, iscsi to show iSCSI protocol-related information, scsi to show SCSI protocol information, and all to show information from all of the above arguments. FILES
/etc/iscsi/targets the list of exported storage /var/run/iscsi-target.pid the PID of the currently running iscsi-target SEE ALSO
targets(5) HISTORY
The iscsi-target utility first appeared in NetBSD 4.0. BSD
May 27, 2006 BSD
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