Hi,

I'm running Legato 6.1 using Tru64 5.1a on an ES40 attached to an ESL9326
jukebox with 8 TL891 drives.  We are setting up for a DR test and I would
like to have the shortest recovery time possible.  We run separate backups
rather than cloning.  We can get about 500 GB backed up in about 5.5 hours
using a parallelism of 32 and 8 target sessions per drive (8 streams running
to 4 tapes simultaneously).  To restore this setup takes about 24 hours.  If
I run with a parallelism of 16, the backup takes about 8.5 hours.  We
haven't tried a restore from those tapes.  Does anyone know of an "optimum"
parallelism for restoring or some equation that could be used to determine
what a restore time might be?

Thanks,

Jody

Jody Gregersen
Infrastructure Engineer
Vishay Intertechnologies, Inc.

--
Note: To sign off this list, send a "signoff networker" command via email
to listserv AT listmail.temple DOT edu or visit the list's Web site at
http://listmail.temple.edu/archives/networker.html where you can
also view and post messages to the list.
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=