From: Scott Walters [mailto:scott_walters AT MACKTRUCKS DOT COM] 
> 6TB day.  yikes.  my calculations give me a sustained transfer of
> 72.82Megabytes per second for 24 hours, to do that.  That's 
> assuming you
> have 24 hours to do the 6TB.
> 
> Like you were saying, the bottleneck for this large an environment is
> probably going to be network capacity into the server, or output
> capacity to your tape drives.  I couldn't even guestimate the 
> impact of
> TSM processing CPU/RAM wise on a setup this large.  Many small files
> will definitely hurt, but if 4 of the TB are just Oracle 
> dumps, TSM screams.

Scalability is much easier to handle if you think in terms of several
smaller TSM servers.

Sharing a library in such an arrangment is possible, but in a large
environment, tape drive throughput becomes an issue. Consider a separate
library for each TSM server, or possible a large disk farm for a primary
pool and a shared library for the offsite storage pool. (Hi, Scott!)
 
--
Mark Stapleton (mark.stapleton AT berbee DOT com)
Berbee Information Networks
Office 262.521.5627