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1/8 G2 Autoloader, DPM2007 and compression

nielsvdc
Occasional Contributor

1/8 G2 Autoloader, DPM2007 and compression

We have a 1/8 G2 920 Autoloader and are using Microsoft DPM2007 as back-up software. We are using 800GB Ultrium tapes (C7973A) as back-up medium.
We are making a back-up of files, Exchange and SQL server bak files and have tape spanning enabled.

The problem we have is that we would like to compress data to the tapes, so that we can use the full 800GB instead of 400GB, but we are unable to get data compressed.
There are 2 compression option settings. Compression by DPM or compression by tape drive. We've played around enabling and disabling one or both of them, but we are unable to get it working. Someone else any experience with this or some other advise?