On Sun, Sep 08, 2002 at 07:54:29PM -0400, Jean-Louis Martineau wrote:
> Try this patch, tell me it works.
in response to this request
> On Fri, Sep 06, 2002 at 03:26:56PM -0700, Adnan Olia wrote:
> > Hi all,
> >
> > I have a question. Can you run amverify on a tapeless backup in
> > Amanda. I have no tape drives or tape changes and I am backing up
> > my machines completely on my amanda server.
> >
> > When I run:
> > amverify DailySet1
> > I get:
> > No tape changer...
> > Not a character special device: file:/home/backup
I've seen no response from Adnan but I'm on the same path myself i.e.
starting to use the file: device. I applied the patch and it does get rid of
the specific error message but then I get something like
amanda@backup:/etc/amanda/TIZ> amverify TIZ
No tape changer...
Tape device is file:/backup/a...
Verify summary to niall AT makalumedia DOT com
Defects file is /tmp/amanda/amverify.13907/defects
amverify TIZ
Tue Sep 10 01:30:30 CEST 2002
Using device file:/backup/a
Waiting for device to go ready...
and there it will wait, forever. Looking at the amverify script shows that
it's not going to work with the file: device without a major rewrite. It
uses mt extensively (in the above, it's waiting for an 'mt -f $DEVICE stat'
to complete successfully. When $DEVICE is a directory, it will be left
waiting :-(
Later in amverify, it also waits for an 'mt -f $DEVICE rewind' to complete
successfully which again will be a long wait when $DEVICE is a directory.
And later, to read the tape label, it's using dd if=$DEVICE which again
won't be a whole lot of use when $DEVICE is a directory.
To actually read each backup file and pass it to the restore utility to see
if it can create a catalog, it uses amrestore on $DEVICE - again, this isn't
going to work when $DEVICE is a directory.
I have to say that I'm more than a little concerned about this. I'm not so
worried that amverify won't work, because I'd see the main use of amverify
being to check a tape, and people probably don't want to do this quite so
much when using disk (although amverify should work, or perhaps at the
moment give an apropriate error message if the file: device is used) BUT I
am worried about restoring from my backups.
Have any of you who are using the file: device given it a good shakedown
testing recovery of files or entire partitions ?
Kindest regards,
Niall O Broin
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