On Tue, 10 Jul 2007 11:12:35 +0100 Martin Simmons <[EMAIL PROTECTED]> wrote:
> >>>>> On Mon, 9 Jul 2007 20:27:23 -0600, Ken Gunderson said: > > > > Greetings: > > > > Since my baffled post I've been doing some testing w/various sd.conf > > tweaks. btape results and fbsd ports message initially recommended: > > > > Due to lack of some features in the FreeBSD tape driver > > implementation you MUST add some OS dependent options to > > the bacula-sd.conf file: > > > > Hardware End of Medium = no; > > Backward Space Record = no; > > Backward Space File = no; > > > > With 2 filemarks at EOT (see man mt): > > Fast Forward Space File = no; > > BSF at EOM = yes; > > TWO EOF = yes; > > > > > > While btape completes w/above no problem, from man mt it looks like FBSD > > supports bsr, however, and a few tests from command line seem to > > confirm so I trimmed sd.conf down thusly: > > > > Hardware End of Medium = no; > > Fast Forward Space File = no; > > BSF at EOM = yes; > > TWO EOF = yes; > > > > btape test completes fine and no longer recommend the bsr related > > tweaks. Maybe they're not necessary and btape should be modified? > > Don't know about fill results yet - running now. Hopefully I'll > > encounter the magic incantation to get my autochanger to actually > > change tapes... > > In the current Bacula tape driver, Backward Space Record is only used to > verify that the last block has been written correctly when a tape gets full, > it is not strictly necessary. In addition, the setting of Backward Space File > is ignored (bsf must work). > > You might be able to use these settings on some FBSD tape drives: > > Fast Forward Space File = yes > BSF at EOM = no > TWO EOF = no > > __Martin Thanks. I know that it's optional and not needed. But it seems btape's suggestions regarding sd.conf tweaks may be a bit inconsistent depending upon what flags are already set. This is all a bit confusing on FBSD because per mtio man page various calls referenced in sd.conf docs are supported, e.g. mtiocget, mtbsr, mtfsf, etc. Whether they're supported by SCSI device/driver remains uncertain, as I don't know how to test. In this case I'm using LSI controller and mpt driver. My assumption was that since btape said I needed sd flags such as Backward Space Record, etc. that it did not. But it looks like it does. So I'm wondering whether the issue is with btape erroneously reporting or the mpt driver. To recap, btape and manual backups and restores work but Autochanger is not changing tapes when it should so I suspected something was not quite right in sd.conf. To follow up, btape completed fine. In this case drive is ARCVault12 w/LTO-2 Drive. Drive in this one is an HP. But since HP does no longer make their own drives who knows... -- Best regards, Ken Gunderson GPG Key -- 9F5179FD "Never hold discussions with the monkey when the organ grinder is in the room." - Sir Winston Churchill ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
