On Sun 22 Jul 2001, Luiz Emediato wrote: > > Companies say that if you have compressed files they won't be compressed > again. This is obvious, but what about the tape density. > As far as I know, compression would mean high density on tape.
Your assumption is wrong. The density gives you 4GB, the compression doubles that to 8GB (marketing speak, not my opinion!). To get more on a tape, you need higher density, not higher compression. Two different things. > It seems that the limit of 8GB stated by companies is a fiasco ! Well, er, DUH! :-) Same problem with 1GB = 1000"MB" = 1,000,000,000 bytes, not 1024 x 1024 x 1024 = 1,073,741,824 which means that the GB used by marketing is more than 7% less than what a technical person would expect. > Has anyone backup more than 4GB of data on DDS-2 tapes successfully ? Backup executables, text, data, ... anything that's not already compressed (i.e. not mp3, jpg, gif, ...) Paul Slootman -- home: [EMAIL PROTECTED] http://www.wurtel.demon.nl/ work: [EMAIL PROTECTED] http://www.murphy.nl/ debian: [EMAIL PROTECTED] http://www.debian.org/ isdn4linux: [EMAIL PROTECTED] http://www.isdn4linux.org/
