reply to Robert Jarry-

>I recently installed ADSM/6000 v2 on a RS/6K 590 with 256MB of memory and
>one LAGO Datawheel (2 8mm 8500c tape drives inside). I configured ADSM for
>backup only, no storage migration or archive.  I ran a full backup of one
>800MB filesystem  which is on the server to get some idea of what the best
>backup rate might be. It's taking almost 2 hours to backup only 800MB. I
>currently am taking the installed defaults except for TCPBuffsize and
>TCPWinsize, which I reset to the max values of 32 and 2048 respectively.
>The transfer rate to the server is between 7000 kb/s and 8000kb/s.

Have you defined a DASD storage pool as the first area that you backup to ???
If you go directly to tape, your backup will be limited by the speed of your
tape drives.  It is strongly recommended that  you have a "first level" dasd
storage pool defined- usually large enough to hold at least one nights worth
of Incremental backups (not the first full backup).  Then define that DASD
pool to migrate (on a threshold value) to your tape pool.  This way, you are
using the DASD pool to "buffer" your backups.

Susan McClure
Rice University