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Full Discussion: Changing AIX LUN paths
Operating Systems AIX Changing AIX LUN paths Post 302994034 by MichaelFelt on Friday 17th of March 2017 05:21:27 PM
Old 03-17-2017
I use iSCSI with my VIOS. I then export those disks using vSCSI to the partitions.

As it is iSCSI - it is dependent on how your IP network connects.

Code:
iscsi0    192.168.90.53    3260 iqn.2004-04.com.qnap:ts-659:iscsi.x061.c806e6

My guess is that if you can change the IP network address from the 1GB network to the 4GB interface - just change those.

If that is a potential solution I, or someone else, can tell you how that can be done without taking anything "offline".

And, if you want to do it offline - it is not just taking all the filesystems offline (aka unmount) but also varyoffvg of the volume group, and then rmdev -l hdiskX (or rmdev -dl hdiskX).

And yes, if youvaryoffvg the volume group, you will probably use cfgmgr and varyonvg, and mount ... to bring everything online again.

So - what does the IP network look like?

My single 'link' to my NAS gives my 13 iscsi luns. An older, simpler, device had one lun per iscsi entry.

So, how the luns look|appear depend more on the device than on AIX - imho!

Hope this helps!
 

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ISCSID(8)						   Linux Administrator's Manual 						 ISCSID(8)

NAME
iscsid - Open-iSCSI daemon SYNOPSIS
iscsid [OPTION] DESCRIPTION
The iscsid implements the control path of iSCSI protocol, plus some management facilities. For example, the daemon could be configured to automatically re-start discovery at startup, based on the contents of persistent iSCSI database. OPTIONS
[-c|--config=]config-file Read configuration from config-file rather than the default /etc/iscsi/iscsid.conf file. [-i|--initiatorname=]iname-file Read initiator name from iname-file rather than the default /etc/iscsi/initiatorname.iscsi file. [-f|--foreground] run iscsid in the foreground. [-d|--debug=]debug_level print debugging information. Valid values for debug_level are 0 to 8. [-u|--uid=]uid run under user ID uid (default is the current user ID) [-g|--gid=]gid run under user group ID gid (default is the current user group ID). [-n|--no-pid-file] do not write a process ID file. [-p|--pid=]pid-file write process ID to pid-file rather than the default /var/run/iscsid.pid [-h|--help] display this help and exit [-v|--version] display version and exit. FILES
/etc/iscsi/iscsid.conf The configuration file read by iscsid and iscsiadm on startup. /etc/iscsi/initiatorname.iscsi The file containing the iSCSI initiatorname and initiatoralias read by iscsid and iscsiadm on startup. /etc/iscsi/nodes Open-iSCSI persistent configuration database SEE ALSO
iscsiadm(8) AUTHORS
Open-iSCSI project <http://www.open-iscsi.org/> Alex Aizman <itn780@yahoo.com> Dmitry Yusupov <dmitry_yus@yahoo.com> July 2005 ISCSID(8)
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