ADSM-L

Re: [ADSM-L] TSM Migration Related

2011-12-06 04:57:06
Subject: Re: [ADSM-L] TSM Migration Related
From: Stefan Folkerts <stefan.folkerts AT GMAIL DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Tue, 6 Dec 2011 10:54:08 +0100
I agree with Xav, this is something you want to do with a partner that has
done this kind of stuff before.
There are all sorts of things that need to be sorted, if you really need to
migrate the TSM db you need to upgrade to 5.4 or 5.5, then you have the
issue of LTO-5 not being able to read LTO-1 tapes so you need to (for
example) connect both libraries, make new storagepools etc etc.

But there also might be another route, the let most of the data die on the
old system, migratie via server-to-server what needs to be saved and start
over, that way you don't have that much work on the old evironment (you do
need to upgrade TSM) and it's not such a big-bang migration.
However you do this, it's going to take a some solid preparation and
planning.

Make sure you get somebody that has good TSM 5, TSM 6 and LTO tape skills.


On Sat, Dec 3, 2011 at 7:50 AM, venkatb <tsm-forum AT backupcentral DOT com> 
wrote:

> Hi,
>
> I have a TSM 5.2 running on AIX, IBM TS3500 library With 6 LTO-1 drives
> connected to it. the library capacity is 253 tapes.
>
> Now we want to move to Latest TSM Version With Latest Library with LTO5
> Drives
>
> Once the new setup is up and running, i want to migrate the DB to latest
> version, and also move all my data from LTO1 Cartridges to LTO5 Cat rides.
>
> so that i can crash all my LTO1 Tapes (Around 1500),
>
>
> 1) Can some pls suggest how i can do this ?
>
> 2) How to know the size of total data in tapes since day 1 ?
>
> 3)is these steps are correct ?
>        first i will define a disk pool,
>        then move data from the LTO1 to diskpool
>        then install new version, migrate DB,
>        the move data from diskpool to new LTO5 pool
>
> 4)Before Migrating i want to delete some data from the tapes ex: all data
> of node1 before 2009 is this possible ?
>
> 5) Usually when stgpool out of space we cheeck out 100% full tapes from
> lib and check in free tape and assign to stgpool, since last    5years
> almost 1500 full tapes are in boxes, when some restoration comes, TSM will
> ask for check in the required volumes, and we check in, once finishes we
> removes, during the migration check-in check-out task will become
> difficult, How can i shorten this procedure
>
> 6)usually LTO5 media box shows that 3TB (2:1) compression, whether TSM
> uses this compression ratio ?
>
>
>
> Thankyou
>
> Venkatesh B
>
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