Can anyone explain how Legato buffers incoming streams - if it does at all.

I have 1 server that has a 1 TB data (don't say move to SAN, that is already
in the process) with a gigabit Ethernet link directly to the Legato server.
I have performed a full backup in about 12 hours when it was the only thing
running, but during normal backups it takes a lot longer.  For instance this
morning, I see it running at 3 MB/s versus the rated 12-15MB/s that the tape
drives are capable.  There is another server that is being backed up at the
same time (the second server is 5 years old and only 100BaseT)  I am
thinking that the tape maybe running at 3MB/s because of the second stream
and I was wondering if there was a way to have the server buffer the stream
so that it wouldn't slow down the other backup. - if this is a stupid
question, please be gentle with the flames.

Alternately, should I dedicate 1 or 2 tape drives to just backing up the big
server.  I am looking at breaking up the 3 400GB volumes into different
savesets to speed it up, but that is seeming to be a lot of work to
maintain.

Jack


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