On Wed, 4 Feb 2004 at 11:09am, [EMAIL PROTECTED] wrote > Joshua Baker-LePain: > > >Your tape write speed would only get cut in half when going to software > >compression if the hardware compression had been getting 2:1, which it > >almost never does. And gzip is better than just about any hardware > > So amtapetype reported a ~ 2x difference because of what - carefully > selected data?
amtapetype on a tape drive using hardware compression is rather unreliable. It writes random data, which expands when hardware "compressed." You should never run amtapetype on a drive with hardware compression enabled. -- Joshua Baker-LePain Department of Biomedical Engineering Duke University
