For the speed & quality stay with your Magstar.   You can upgrade to 3590e
drives (34.7MB/sec).  If you have less than 4 drives you may want to add
to make 4.  Six may be better but start with 4.  Write directly to the
drives for large files or clients consisting of primarily large files (eg.
databases).  Add an expansion unit just for cells if necessary, etc.

Clint Placette wrote:

> Hello,
>
> I need some input on a ADSM upgrade project.  Current environment is
> AIX 7026/H50,4.2.1.0, ADSM 3.1.2.1, Magstar MP L12, 45GB SSA disk
> pool. Clients are Solaris, Novell, NT servers. We backup 17 servers,
> 12GB incrementals nightly in current environment.
>
> We need to backup 60 servers, 45GB incrementals in a 8 hour window
> nightly.  Estimated capacity is a 7TB tape library and 320GB disk pool
> (migration and archiving).
>
> I have propose to management the StorageTek 9740 using 9840 drives
> (4), two ultra-wide SCSI cards and Clariion fibre channel 5300, 128MB
> Cache.
>
> Question  Can anybody give me a compelling reason to rethink my
> strategy.
>
> As always thanks in advance.