Gene Heskett wrote: > On Wednesday 11 September 2002 06:28, Mozzi wrote: > >>Hi again all >> >>When running typetype what do I spesify as my type size ? >>I have a 40/80 Gig dlt tape drive >>so will my command be >>typetype -e 40 -f /dev/nst0 -t Tandberg VS80 DLT >>or >>typetype -e 80 -f /dev/nst0 -t Tandberg VS80 DLT >>? > > > Turn off any hardware compression first, and *leave it off*, then > try the first version. With hardware compression on, the data from > /dev/urandom will expand somewhat and tapetype will return an > amount thats conservative, probably by double digit percentages. > > Amanda needs to know how much the tape can hold because she counts > bytes being sent to the medium AFTER Cool so we want the "real" capacity witch is 40 Gigs any compression she might have > been told to do via your chosen dumptype in the disklist. Since > software compression can, except for already compressed archive > files, very handily beat the socks off the hardware rll, you'll get > quite a bit more real capacity out of a tape with software. One > session last week had nearly 7 gigs of src, on tape it was well > under 2gigs, using less than half a DDS2 tape. > > In your disklist, don't compress directories full of archives, and > do compress the other stuff unless the email from amanda says the > compression was over 100% for that entry, which tells you the data > grew. >
Tnx a lot Mozzi
