On Sun, Feb 03, 2002 at 02:38:48PM +1300, Glen Eustace wrote: > I was more than a little dismayed today to find that all of the backups I > have been doing are not recoverable. I needed to restore some files today, > and at this stage it looks like I am out of options. > > The client is i386 rh7.1 running the amanda-2.4.2p2 clients as installed from > the rh RPM. > > The server is sparc rh6.2 running the amanda-2.4.2p2 as compiled from source. > > All the backups appear to have been working fine. The tape drive is an > Exabyte 8505 in a 10 slot jukebox. All backups have been written using client > compressed tar. > > I can move around the backups on tape using mt and the amanda headers look > fine, but if I try to recover anything I get a decompression error shortly > into the file. I have used dd to copy the file to disk first and get the same > result. It doesn't seem to matter what I try, the backups are not usable. > > Any comments would be much appreciated. >
Well, you might have a bad tape system, or you might even have a bad disk system. All hints about termination apply to the disk system as well. (I once had problems with bad images on the holding disk. Splitting the SCSI Bus and buying active termination solved it. Running a SCSI Bus from inside to outside is prone to problems) More info on the SCSI game: http://scsifaq.org/ If you have a holding disk, i would run Amanda with software compression on and "reserve 0" in amanda.conf. After successful amdump you can check the holding disk images. dd bs=32k skip=1 if=<image> | gzip --test Ciao Dietmar -- Alles Gute / best wishes Dietmar Goldbeck E-Mail: [EMAIL PROTECTED] Reporter (to Mahatma Gandhi): Mr Gandhi, what do you think of Western Civilization? Gandhi: I think it would be a good idea.
