-Nothing you do with TSM, I mean NOTHING, will result in data loss, if done
correctly.

-The whole POINT of TSM library sharing is so that you don't have to
partition the library; if you partition the library you can't share the
drives dynamically between the TSM instances.

-Splitting the clients between different servers can be tedious; as noted by
others, you may need to do exports if the client data is long-lived.  (Look
at letting the client backup data expire where practical, and just moving
archive data - that can reduce the work a lot.)  BUT, setting up library
sharing is very easy.

-The problem is clearly too complicated for your contractor, rather than too
complicated for your TSM!



On Wed, Oct 15, 2008 at 1:51 PM, Haberstroh, Debbie (IT) <
HABERDE AT voughtaircraft DOT com> wrote:

> Hi All,
>
> We currently have 1 TSM server ver 5.3.3 on AIX 5.3, with a large database,
> 228GB.  We have finally received approval to move this to a new server,
> upgrade to 5.5 and split the clients up to reduce the DB size.  We would
> like to have 4 LPAR's created on the new server, 1 for a Library manager and
> the other 3 for client databases. Our library is a TS3584 with 12 LTO2
> drives.  We are adding another expansion cabinet and adding 4 LTO3 drives
> but are staying with LTO2 tapes for now.  Our current library configuration
> has the library shared but it is not a library manager since we only had one
> server.
>
> Due to the size and complexity of our environment, we contracted with a
> vendor to do the setup and start the process.  Now that the contract has
> been signed and we have started our planning sessions, the vendor is having
> a problem with the library manager/client configuration.  At first he said
> that there was no such thing.  I sent him documentation and they also found
> an IBM redbook on the subject but now says that it is too complicated since
> our server is so large and that I will need to partition the library, with
> some data loss!!  I am strongly against this setup and would like to know if
> I am wrong.  How difficult would it be to create a library manager and
> client setup for an existing environment?  I currently have over 1000 tapes
> onsite and as many offsite and naturally do not want to lose any data.
>  Thanks for the feedback.
>
> Debbie Haberstroh
> Server Administration
>