"quaixy" <mcquej@blueyonder.co.uk> wrote in message
news:3F26299E.1090706@blueyonder.co.uk...
> Hope I'm not asking for something that's been covered before.
>
> I’m working on a project, which will involve backing up an Oracle DB on
> an HACMP cluster across pseries LPARs, using SAN attached ESS storage &
> LTO tape library (SAN Gateway).
>
> I’d like to explore possible options. Here’s what seems to be on offer.
>
> Option 1. – Oracle DB server is SAN zoned such that it can access both
> the ESS disks & LTO tape library using the same fibre channel cards. TSM
> server pretty much just controls & monitors the process, doesn’t cache
> the data in storage pools or anything.
>
> My understanding is that having disk & tape on the same fibre channels
> isn’t a good idea but as I’m a SAN novice I’ll take any advice gratefully.

It is recomended to have disks and tapes on separate FC adapter.

>
> Option 2. – The TSM server is SAN zoned to the LTO tape library and to
> the ESS but using separate sets of fibre channel adapters. The TSM
> server mounts a snapshot of the database created using either ESS’s
> Flashcopy or a Split Mirror technique. Obviously the Flashcopy solution
> is better in that the mirror sync happens in the ESS rather than being
> driven by the DB server.
>
> Alternatively, are there any other techniques exploiting ESS or SAN
> features that should be considered, remembering that we don’t want to
> send any large volumes of data over the LAN.
>
> TIA
> Quaixy
>