Interesting question. I'm getting some odd errors when trying to restore
data. They don't appear to be affecting anything -- I think they happen at
end of tape, but I may be wrong.
Here's the Device I set up fresh. I tested this extensively with btape and
it's happy:
# A FreeBSD tape drive
Device {
Name = DDS-3
Description = "DDS-3 for FreeBSD"
Media Type = DDS-3
Archive Device = /dev/nsa0
AutomaticMount = yes; # when device opened, read it
AlwaysOpen = no
Offline On Unmount = no
Hardware End of Medium = yes
BSF at EOM = no
Backward Space Record = no
Fast Forward Space File = no
TWO EOF = no
}
And here is the device I was using when I made the backups:
(which I got using bextract from one of the tapes that ended this way)
# A FreeBSD tape drive
Device {
Name = Seagate
Description = "DDS-3 for FreeBSD"
Media Type = DDS-3
Archive Device = /dev/nsa0
AutomaticMount = yes; # when device opened, read it
AlwaysOpen = no
Offline On Unmount = no
Hardware End of Medium = no
BSF at EOM = yes
Backward Space Record = no
Fast Forward Space File = no
TWO EOF = yes
LabelMedia = no;
Spool Directory = /space/backups
Maximum Spool Size = 15000000000
}
The important differences are clearly:
BSF at EOM = yes
TWO EOF = yes
So when I'm restoring, the last (or so I believe) backup on the volume ends
with the following error on 6 of the 10 volumes:
16-Jan 12:03 bextract: bextract Error: block.c:782 Read error at file:blk
8:5061 on device /dev/nsa0. ERR=Operation not permitted.
16-Jan 12:03 bextract: bextract Error: Unexpected Tape is Off-line
Is this a hardware problem, (no sa0 errors are reported in the log) or a
different reading of the tape data?
--
Jo Rhett
senior geek
SVcolo : Silicon Valley Colocation
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