Alan Brown wrote: > On Wed, 14 Feb 2007, Jesper Krogh wrote: > >> The attached Tape is an LTO-3(Quantum PX506) with has a reported rate >> at 80 >> MB/s (I havent tested this). The network is a gigabit network, which I >> can >> put around 600 mbit/s through using nc in both ends on some junk-files. > > Is that "native" or "compressable" speed? > > LTO3 are 400Gb native or 800Gb "compressed" - where marketing assumes > 2:1 compression ratios. > > Have you tried testing using btape's 'fill' command? > > If you're spooling, you shoudl expect throughputs to be considerably > slower than non-spooling for streaming data as there's double handling > of the files.
I'm spooling.. and that actuall gives me this information: 22-Feb 17:41 bacula-sd: Despooling elapsed time = 03:09:40, Transfer rate = 52.72 M bytes/second So it isn't the speed of the tapedrive that gives the limit.. And: 22-Feb 06:24 bacula-sd: Spooling data again ... 22-Feb 14:30 bacula-sd: User specified spool size reached. So spooling 600GB is around 8 hours.. => 166 mbit/s.. It is the differece up to around 600 mbit/s that I'm missing (for network/file-transfer). Jesper -- Jesper Krogh, [EMAIL PROTECTED] ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
