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
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