Jason Voorhees schrieb: > > I think I was confusing some terms. The speed I reported was the total > elapsed time that my backup took. But now according to your comments I > got this from my logs: > > With spooling enabled: > > - Job write elapsed time: 102 MB/s average > - Despooling elapsed time: 84 MB/s average > > > Without spooling enabled: > > - Job write elapsed time: 68 MB/s average > > These are averages obtained from a group of 5 or more jobs of each > case (with and without spooling). So I can see that with spooling > enabled the process of writing to tape get higher speeds than > copy-from-fd/write-to-tape without spooling enabled. > > Now the question is, why am I getting so low despooling speeds if I > use LTO-5 tapes? Shouldn't I have higher speeds than you with LTO-4 > tapes? > ...
I got the biggest gain by changing "Maximum File Size" to 5 GB. How fast is the disk where you spool file is locatet? A different test would be to create a 10 GB file with data from /dev/urandom in the spool directory and the write this file to tape (eg. nst0). Note: this will overwrite your existing data on tape and you might have to release the drive in bacula. dd if=/spoolfile-directory/testfile of=/dev/nst0 bs=xxxk (your bacula block size) Ralf ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. Delivers lowest initial acquisition cost and overall TCO of any competing solution. http://p.sf.net/sfu/whatsupgold-sd _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
