We have Bacula on RH 9 with an internal VXA-1 drive attached to an Adaptec 2940UW and an external RakPak (2 VXA-1 drives) that had been attached to the external port/channel on the same adapter.
Configured in this way, Bacula would recognize all three drives, but we encountered a peculiar problem when attempting a full backup on the external drives. Bacula would write anywhere from 1.5 GB to 24 GB onto a tape, then fail. Here is the error portion of the log: . . . 24-Jul 09:04 lbackup-sd: GIS_Three.2005-07-24_08:42.29 Error: block.c:552 Write error at 1:4587 on device /dev/st2. ERR=Input/output error. 24-Jul 09:04 lbackup-sd: GIS_Three.2005-07-24_08:42.29 Error: Error writing final EOF to tape. This tape may not be readable. dev.c:1213 ioctl MTWEOF error on /dev/st2. ERR=No such device or address. ERR=No such device or address. 24-Jul 09:04 lbackup-sd: GIS_Three.2005-07-24_08:42.29 Fatal error: Fatal device error: ERR=dev.c:639 ioctl MTIOCGET error on /dev/st2. ERR=No such device or address 24-Jul 08:52 GIS2-fd: GIS_Three.2005-07-24_08:42.29 Fatal error: backup.c:477 Network send error 32768 to SD. ERR=Broken pipe . . . Now, these same tapes work just fine in the internal drive when I edit bacula-dir.conf to send this job to that drive. So we put another 2940UW into the server and attached the RakPak to it. I was concerned that the drives would be identified differently; I'm a little out of my league here, though I have a smidgen of understanding. Anyway, although ./btape -c bacula-sd.conf /dev/st1 and /dev/st2 give a btape prompt, bacula will not mount a tape on either of the external drives. When I type "mount Left", Bacula instantly informs me: 3905 Device /dev/st1 open but no Bacula volume is mounted. If this is not a blank tape, try unmounting and remounting the Volume. It does this without reaching out and touching the drive at all. When I run ./btape -c bacula-sd.conf /dev/st1, it opens the device OK. Then I type "test" and get this: btape: btape.c:766 Bad status from rewind. ERR=dev.c:406 Rewind error on /dev/st1. Err=No medium found. Bulletin: While writing this I have done a number of tests and I now have some more details. When I start Bacula and type status sd, it shows that Week_1B is mounted on Internal (/dev/st0) and Tuesday_A is mounted on Right (/dev/st2). This is interesting because Tuesday_A is in the internal drive and Week_1B is in the left drive. That implies that Bacula now thinks that /dev/st1 is the Left drive, meaning that the drives have "rotated" one step clockwise. Moreover, if I unmount all drives, stop Bacula, then restart and run status sd, the tapes are both mounted again as before. As before, if I unmount and then mount, I get the errors mentioned above. So I stopped Bacula, edited bacula-dir.conf slightly to send a full backup to the "Internal" drive (formerly sent to "Left"), then restarted and am currently running a full backup on the "Internal" (Left RakPak) tape drive. I will know in a couple of hours if it finishes successfully. Even if it does, there remains the problem of unmounting and remounting. I have little doubt that if I edit bacula-sd.conf all will be corrected, but I have no idea what to change. Richard ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id492&op=click _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
