We rename our rmt devices, using a script called tsmchrmt, which uses part of the wwn and lun_id to rename the rmt device. That way the same drive has the same name on all of the AIX systems that have access to it.
>#!/bin/sh > >if [ $# != 1 ] >then > /bin/echo "must specify 1 rmt device name as an argument." > exit 4 >fi >d=$1 > >WWN=`/usr/sbin/lsattr -El $d -a ww_name|/bin/cut -f2 -d" "|/bin/cut -c15-` >LUN=`/usr/sbin/lsattr -El $d -a lun_id|/bin/cut -f2 -d" "|/bin/cut -c3` >root=`/bin/echo $d|/bin/cut -c1-3` >new_name=$root.$WWN.$LUN.0 >let "j=0" >while [[ -e /dev/$new_name ]] >do > let "j=j+1" > new_name=$root.$WWN.$LUN.$j >done >/usr/sbin/chdev -l $d -a new_name=$new_name At 02:31 PM 7/8/2016, Rhodes, Richard L. wrote: >Hi Everyone, > >I'm wondering how others handle lining up tape paths of multiple TSM servers >in a library sharing environment. > >We have a TSM library sharing environment across our TSM instances for sharing >our two 3584 libraries. One 3584 at each datacenter with a dedicate TSm >instance for the library manager. > >Currently I have a script that crawls through all TSM instances, gets the wwn >of each rmt device (lsattr -El rmtX), lines up all the wwn/rmt# for a drive >and creates TSM path commands. Kind of brute force, but has worked very well >over the years. I can create path cmds for everything in about 15m. But, >this means that a particular drive can have many different rmtX devices across >our TSM servers. > >A while ago I learned that you can rename a rmtX device (rendev -l rmtX -n >rmtY). I've been thinking about a new system where I rename the rmtX devices >on each AIX lpar to a common name. > >For example: If a particular lpar has rmt1 which is our "a" 3584, and the >drive is frame 1 drive 1, then I could call it rmta11. There is atape >involved with multi paths, so there would also be -pri and -alt versions of >the name somehow. So this particular drive would have the same AIX device >name across all AIX lpars. > >So, I'm curious . . . What do you do to line up rmt devices? >Do you rename rmt devices to a common name, or, line up the many different rmt >devices? >If you rename rmt devices, what issues/problems have you worked through? > > >Thanks > >Rick > > > > >----------------------------------------- > >The information contained in this message is intended only for the personal >and confidential use of the recipient(s) named above. If the reader of this >message is not the intended recipient or an agent responsible for delivering >it to the intended recipient, you are hereby notified that you have received >this document in error and that any review, dissemination, distribution, or >copying of this message is strictly prohibited. If you have received this >communication in error, please notify us immediately, and delete the original >message. -- Paul Zarnowski Ph: 607-255-4757 Assistant Director for Storage Services Fx: 607-255-8521 IT at Cornell / Infrastructure Em: p...@cornell.edu 719 Rhodes Hall, Ithaca, NY 14853-3801