At 06:18 AM 2/1/2000 -0500, you wrote:
>I have been following the compression thread the last day or so. My question
>is if you want / need to have compression at the client end what are you
>doing at the tape end?

Curt,
I've done some tests with DLT4000's and DLT7000's, and have found that with
client compression turned on, using tape drive compression results in lower
utilization of tape (i.e., the tape compression results in expanding the
already compressed data).

I was not selective in identifying the type of data involved - we compress
all data at the client, so it wasn't easy for us to further quantify the
test.  For the few clients that we turn compression off for, we just send
their data to the same storage pool, so no compression is done for this
data at all.  It's not enough data for us to worry about.
..Paul