ok ! I found why defblksize and sesetoptions didn't work ... I'm running Debian and I had to install mt-st package (seems that I had an obscure GNU version of mt (?)). Now those options are recognized.
Let's try to make some backup/restore tests ... and see if it works ... [EMAIL PROTECTED] wrote: > Dear Julien, > > Under 2.6 try (note stsetoptions, not stoptions): > > mt -f /dev/nst0 stsetoptions 0 > dmesg | grep st0 > > That should give you the information you need. Clearly from the existing > info your drive is coming > Up incorrectly. What remains to be seen is whether we can force it > permanently to block size of zero. > > Note that for 2.6 kernel, depending upon version of mt you should be able to: > mt -f /dev/nst0 defblksize 0 > > as well. > > Regards, > > Brett > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Julien Cigar > Sent: 14 July 2006 16:08 > To: bacula-users@lists.sourceforge.net > Subject: Re: [Bacula-users] Last chance before I [EMAIL PROTECTED] > tapedrivethrough the window ... > > Brett, > > (Under Linux it's "stoptions" in place of "setstoptions".) > > Under kernel 2.6 I have no results in /var/log/syslog or /var/log/messages > > Under kernel 2.4 I have this: > Jul 14 11:30:32 localhost kernel: st0: Mode 0 options: buffer writes: 1, > async writes: 1, read ahead: 1 > Jul 14 11:30:32 localhost kernel: st0: can bsr: 0, two FMs: 0, fast > mteom: 0, auto lock: 0, > Jul 14 11:30:32 localhost kernel: st0: defs for wr: 0, no block > limits: 0, partitions: 0, s2 log: 0 > Jul 14 11:30:32 localhost kernel: st0: sysv: 0 nowait: 0 > > When I boot (under kernel 2.6) I noticed: > Jul 14 15:36:49 localhost kernel: scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI > HBA DRIVER, Rev 7.0 > Jul 14 15:36:49 localhost kernel: <Adaptec 2940 Ultra SCSI adapter> > Jul 14 15:36:49 localhost kernel: aic7880: Ultra Wide Channel A, > SCSI Id=7, 16/253 SCBs > Jul 14 15:36:49 localhost kernel: > Jul 14 15:36:49 localhost kernel: Vendor: SONY Model: > SDX-500C Rev: 0204 > Jul 14 15:36:49 localhost kernel: Type: > Sequential-Access ANSI SCSI revision: 02 > Jul 14 15:36:49 localhost kernel: target0:0:6: Beginning Domain Validation > Jul 14 15:36:49 localhost kernel: target0:0:6: wide asynchronous. > Jul 14 15:36:49 localhost kernel: target0:0:6: FAST-10 WIDE SCSI 20.0 MB/s > ST (100 ns, offset 8) Jul 14 15:36:49 localhost kernel: target0:0:6: Domain > Validation skipping write tests Jul 14 15:36:49 localhost kernel: > target0:0:6: Ending Domain Validation Jul 14 15:36:49 localhost kernel: st: > Version 20050830, fixed bufsize 32768, s/g segs 256 Jul 14 15:36:49 localhost > kernel: st 0:0:6:0: Attached scsi tape > st0<4>st0: try direct i/o: yes (alignment 512 B), max page reachable by HBA > 1048575 > > As you can see the drive starts with a fixed block size of 32k. So after the > boot, I stop all the bacula daemons and I setblk 0 and stoptions 7 (buffer > write + async writes + read ahead). Then I relaunch the bacula daemons. > Is it possible that the kernel or the driver (or ...) "resets" the block size > after a mt -f /dev/nst0 setblk 0 and an ejecting of the tape from the tape > drive ? (I checked with mt -f /dev/nst0 status but it's still on '0' so I > presume that the drive is still in variable block mode). > > Another question, is it possible that it fails because I don't *umount before > ejecting the tape ? (I press on the eject button of the tape drive) In fact > the people who have to change the tape when they received a mail should not > access bconsole (too complicated ...), so all they have to do is to press on > the button and put the other tape (so without having to *umount). > > Many thanks, > Julien > > [EMAIL PROTECTED] wrote: > >> Dear Julian, >> >> This is good, but we were both referring to in between jobs (after daemon >> has started). The original commands I gave: >> mt -f /dev/nst0 setstoptions 0 >> grep st0 /var/log/messages >> >> Will show you if these settings are being changed indvertedly by >> either (a) bacula or (b) the kernel driver prior to the restore command >> (e.g. by the mount command which 'opens' the tape drive). >> >> Best Regards, >> >> Brett >> -----Original Message----- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] On Behalf Of >> Julien Cigar >> Sent: 14 July 2006 15:38 >> To: bacula-users@lists.sourceforge.net >> Subject: Re: [Bacula-users] Last chance before I throw [EMAIL PROTECTED] >> tapedrivethrough the window ... >> >> In fact I always do this _before_ launching the bacula storage daemon : >> mt -f /dev/nst0 stoptions 7 >> mt -f /dev/nst0 setblk 0 >> >> >> Georger Araujo wrote: >> >> >>> Judging from the "BB02" string, I suspect it to be a problem with the >>> block size. I've had such problems when I first deployed Bacula, so I >>> ALWAYS set the block size before I mount a tape, and also after I >>> eject it. >>> Here's my set_blocksize.sh script: >>> >>> 8<--cut-here---------------- >>> #!/bin/sh >>> # Set variable block mode (BlockSize = 0) # Fixed block (BlockSize <> >>> 0) is WRONG! >>> # If in doubt, run tapeinfo -f /dev/sg0 - BlockSize should be 0 mt -f >>> /dev/nst0 defblksize 0 # Rewind the tape mt -f /dev/nst0 rewind >>> ---------------cut-here-->8 >>> >>> Here's my eject_tape.sh script: >>> >>> 8<--cut-here---------------- >>> #! /bin/sh >>> cd /etc/bacula >>> # Set variable block mode >>> # If in doubt, run tapeinfo -f /dev/sg0 - should be 0 mt -f /dev/nst0 >>> defblksize 0 # Rewind the tape mt -f /dev/nst0 rewind # Eject the >>> tape mt -f /dev/nst0 eject exit 0 >>> ---------------cut-here-->8 >>> >>> While I'm at it, here's tape_properties.sh ... >>> >>> 8<--cut-here---------------- >>> #! /bin/sh >>> tapeinfo -f /dev/sg0 >>> exit 0 >>> ---------------cut-here-->8 >>> >>> ... and clear_label.sh: >>> >>> 8<--cut-here---------------- >>> #!/bin/sh >>> # Manually relabel a tape. >>> # >>> # Run bconsole >>> # unmount >>> # delete media volume >>> >>> # Set variable block mode >>> # If in doubt, run tapeinfo -f /dev/sg0 - should be 0 mt -f /dev/nst0 >>> defblksize 0 # Rewind the tape mt -f /dev/nst0 rewind # Write >>> physical End Of File (EOF) to the tape mt -f /dev/nst0 weof >>> >>> # Run bconsole >>> # label >>> # mount >>> ---------------cut-here-->8 >>> >>> My Bacula server (director/client/storage): Dell 2800 running RHELAS >>> 4 with an IBM LTO-2 tape drive. >>> Regards, >>> >>> Georger >>> >>> --- [EMAIL PROTECTED] escreveu: >>> >>> >>> >>> >>>> Dear Julien, >>>> >>>> The only thing I can suggest now is that you review what happens to >>>> the tape options via: >>>> >>>> mt -f /dev/nst0 stoptions 0 >>>> grep st0 /var/log/messages >>>> >>>> Between backup and restore (i.e. before backup and before restore >>>> but after the mount command) in case they are being reset somehow >>>> (by the mount maybe?). >>>> >>>> The manual indicates that the error you are getting is possibly >>>> related to block positioning. As you have indicated it might also >>>> be a kernel issue. >>>> >>>> Best Regards, >>>> >>>> Brett >>>> >>>> >>>> >>> >>> >>> >>> >>> >>> >>> _______________________________________________________ >>> Você quer respostas para suas perguntas? Ou você sabe muito e quer >>> compartilhar seu conhecimento? Experimente o Yahoo! Respostas ! >>> http://br.answers.yahoo.com/ >>> >>> >>> --------------------------------------------------------------------- >>> - >>> --- Using Tomcat but need to do more? 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Need to support web services, >> security? >> Get stuff done quickly with pre-integrated technology to make your job >> easier Download IBM WebSphere Application Server v.1.0.1 based on >> Apache Geronimo >> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=1216 >> 42 _______________________________________________ >> Bacula-users mailing list >> Bacula-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/bacula-users >> >> ______________________________________________________________________ >> This email has been scanned by the MessageLabs Email Security System. >> For more information please visit http://www.messagelabs.com/email >> ______________________________________________________________________ >> >> ______________________________________________________________________ >> This email has been scanned by the MessageLabs Email Security System. >> For more information please visit http://www.messagelabs.com/email >> ______________________________________________________________________ >> >> > > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > Bacula-users mailing list > Bacula-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bacula-users > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please visit http://www.messagelabs.com/email > ______________________________________________________________________ > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please visit http://www.messagelabs.com/email > ______________________________________________________________________ > ------------------------------------------------------------------------- Using Tomcat but need to do more? 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