I'm finalising the raid set-up for our new servers and I was wondering if
anyone had anything critical to say about what my set-up will be. It's one
(possibly 2 servers) attached to an SSA with 10 18GB disks.

The new server has 2 internal disks which will include the sybase
installation. A possible plan to attach another server means I'll just copy
the sybase installation from the primary server. The SSA will be:

raid 1: database logs, masterdb, sysprocsdev, and tempdb (so 2 disks in
total)
raid 0+1: sybase data devices (striped across 2 disks so 4 disks in total)
raid 0+1: sybase database dumps (full and tran) (striped across 2 disks so 4
in total)

I dont know if it's overkill to mirror the dump files. I had thought of just
raid 0 for the full dumps (2 disks) and raid 1 for the tran dumps but
clumping them all togther under a 0+1 should be fine.

Having database logs and tempdb in the same raid 1 set-up is my biggest
worry. Has anyone done this before and what has been the performance issues?
I fear this could be a bottleneck.

The old setup had raid5 for the sybase data devices but I think the new
setup will suffice. I may still change the raid 0+1 yet. I'd like to have
the ability to position the tables.

TIA,
Martin