>> On Wed, 19 May 2010 10:16:58 -0500, "Ochs, Duane" <Duane.Ochs AT QG DOT COM> 
>> said:


> I can tell you about the hardware itself.
> We have two T950s in use now. Purchased one in 2008 the other was purchased 
> in January.
> Both are LTO-4 with 10 drives.
> The hardware is rock solid. We have not had to place a call on either.
> We have 24/7 maintenance now but are considering reducing it to 9X5.

> As far as the drives... No read or write errors in 2 years.
> We loaded up 10 cleaning tapes 2 years ago and the drives have been cleaned 9 
> times each.

> We don't plan on using partitioning at this time but we'll see how that plays 
> out in the future.

> The terapacks are physically durable but we don't remove them from the 
> library.


Great information.  Can you supply a few bits of context?  How many
mounts a day do you have, and how utilized are your drives?  (i.e. out
of 240 tape-drive-hours available in a library, how many are used?)

- Allen S. Rout