As in my previous thread on the topic of switching out drives,  this is
often problematic.

I had another drive replaced, recently (these new TS1130's are very
problematic. I have had 2-replaced already, since they were installed
4-months ago while none of my 3592/TS1120's have been replaced in over
2-years of use - yes I have the latest firmware on *ALL* drives yet some
drives are posting FID1 errors that say "microcode failure") and I had
them change the serial # to the same as the original.

Restarting the Library Manager TSM server did not work. I still had to
reboot the whole server (RH Linux) to be able to talk to the replacement
drive.  IBMtapeutil could not access the replacement drive it until I
rebooted the server.  Even tried restarting the lin_taped daemon.



From:
Roger Deschner <rogerd AT UIC DOT EDU>
To:
ADSM-L AT VM.MARIST DOT EDU
Date:
08/19/2009 12:56 AM
Subject:
Re: [ADSM-L] LTO drive replacement when using switch zoning
Sent by:
"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>



It is undocumented, but when replacing fibre-connected LTO drives you
must halt and restart the TSM server in order for it to correctly sense
the new serial numbers. Nothing will work on the new replaced drive
until you bounce the server. A Sun/STK engineer told me about this one.
I know this is true in 5.5 - don't know about 6.1.

Roger Deschner      University of Illinois at Chicago     rogerd AT uic DOT edu
================= "Cornbread are square; pi are round" =================


On Tue, 18 Aug 2009, Gill, Geoffrey L. wrote:

>Hi all,
>
>
>
>This situation has never happened to me before so I'm a little unsure of
>the steps and order to fix it. Running AIX 5.3 with a TSM instance at
>5.5.1. LTO drives are zoned in through a switch to the TSM server, 2
>drives to each fibre card. Support for the IBM drives was not renewed
>with IBM so it looks like this new group has no idea how to 'fix' drives
>and would rather replace them, something that 'never' happened with IBM
>so I'm not quite sure exactly what needs to be done to get this drive
>back online.
>
>
>
>I know the references in TSM need to be updated so I have removed the
>path and drive. When adding them back the path failed so it seems like I
>need to get AIX to see the new drive and not sure if I also need to do
>anything on the switch. Unfortunately, or maybe fortunately, I typically
>have no issues so it's hard to gain and keep knowledge when 98% of the
>time I'm "watching" the system instead of "doing something" with it.
>Since I don't have a test system built similarly I can't play around and
>create documents to refer to when the 'what did I do when that happened'
>scenario comes up.
>
>
>
>Thanks for any advice you can provide.
>
>
>
>Geoff Gill
>TSM Administrator
>PeopleSoft Sr. Systems Administrator
>SAIC M/S-B1P
>(858)826-4062 (office)
>
>(858)412-9883 (blackberry)
>Email: geoffrey.l.gill AT saic DOT com
>
>
>