On Thu, 5 Sep 2002 at 3:29pm, greg wrote > Run Time (hrs:min) 11:48 > Dump Time (hrs:min) 11:42 11:42 0:01 > Output Size (meg) 24171.4 24171.4 0.0 > Original Size (meg) 54320.4 54318.3 2.1 > Avg Compressed Size (%) 44.5 44.5 1.5 (level:#disks ...) > Filesystems Dumped 3 2 1 (1:1) > Avg Dump Rate (k/s) 587.4 588.0 0.8 > > Tape Time (hrs:min) 11:41 11:41 0:00 > Avg Tp Write Rate (k/s) 588.5 588.5 29.3
Notice how Tape Rate ~= Dump Rate? You're not using a holding disk (or not one that's big enough), and so all your dumps are going straight to tape). This means: a) You can only do one at a time, i.e. all dumps happen serially. b) You're limited by speed of the client hardware/gzip/network. A holding disk would help things quite a bit. Other than that, hardware compression might help a bit, but probably not too drastically. -- Joshua Baker-LePain Department of Biomedical Engineering Duke University
