On Feb 20, 2008 10:38 AM, Rathinasamy, Bhaskaran (ext) <[EMAIL PROTECTED]> wrote: > Hello, > > We have a LTO-3 Ultrium Tape Library.Bacula 2.2.7 is implemented in SLES > 9. > > The despooling speed to the tape is 7.8 MB/sec always, even with > hardware compression and no hardware compression. > Is your tape drive scsi? Possiblty the problem is a scsi problem.
You can test raw drive speeds with dd something like: time dd if=/dev/sda of=/dev/nst0 bs=1G count=10 If you have hardware compression on do not use /dev/zero because you will get a very unrealistic result. > > Is it possible to increase the despooling speed. > I get despooling speeds of 30 to 45MB/s on a LTO2 autochanger when using a 2GB spool file. My spool folder is currently on its own xfs filesystem and using software raid0. My bacula-sd machine (different machine from the director) is a 2 processor opteron 248 with 4GB of memory. John ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
