I'm having problems with backup; afs3.2a, SunOS4.1.3; Sony DAT tape
drive
apparently i have one bad tape; i can get info from "volinfo" for a
volume, but can't restore it. butc is having trouble reading from
the tape. if i try to do a "dd" on the tape, that has problems
too, seemingly with a tape mark.
So I figured I would just specify a later date. Unfortunately, I
seem to have criss-crossed dump levels: i have the following:
/weekly
/monday
/tuesday
/wednesday
/thursday
/archive
so on one friday, I did /weekly; the following friday, i did /archive;
during the week after the archive i did /thursday; and Friday afternoon,
the volumes disappeared (more or less).
so i try to do a simple restore; it says "weekly" and "thursday" tapes
required. "weekly" is the one with the problem.
so i figure i'll just restore from "archive". i use -date on volrestore;
no such luck. it won't try to restore from "archive" no matter what date
i use.
I figure i can delete "weekly" from the archive -- except that it works
for the first 30-some volumes. i have gotten savedb to work (after a
couple tries); if i then remove the "weekly" entry (or entries?) via
the backup program, will i be able to access "archive"? (I'm going to
try that while I send out that message.)
Anyway, I would have thought that reading the tape and piping that in
to vos restore would have worked...dd with various blockings did get
the info off the tape, but piping it to vos restore got nothing. I'm
not sure if it's the blocking factor; or come to think of it,
volrestore and vos restore might be counting on two completely different
formats.....BUT is there a way out of this? even if i get backup to
recognize "archive", there's still an incremental backup based on this
dead tape, and i would like to retrieve the info if i can.
thanks very much for any info -- at this point, i'm also kind of
curious how it works, even if it won't work for me ;-)
ka
--
Kathy Madison SysAdmin, Department of Statistics
[EMAIL PROTECTED] College of LS&A, University of Michigan
One good reason why computers can do more work than people is that they
never have to stop and answer the phone.
