From: Robert LeBlanc
Sent: Saturday, March 07, 2009 10:25 PM
To: Bacula-users AT lists.sourceforge DOT net
Subject: [Bacula-users] Bacula loses tape label?
I’ve
and my third instance now where Bacula has lost the tape label. This seems to happen
after a power outage (our tape library goes out, but the server is on UPS).
What is really interesting is that when the power goes out, nothing is writing
to the tape, but the tape is usually in the drive at the end of the data. When
Bacula goes to write to the tape again, it tells me to insert the volume that
is in the drive or label a new tape. I would just write a new label to it, but
my understanding is that it also writes an EoF basically blanking the tape and
losing all the data on it. Can someone give me an idea of how to get the data
off or relabel the tape so that none of the data is lost? These are LTO4 tape
and only using 100 GB or so; we are going to run through the tapes too fast if
I just have to mark them as used. I’m also worried that I won’t be
able to restore any data off them since the label can not be read. Here are the
btape commands to read the labels from two of the tapes; I can’t remember
the third tape that showed the problem.
Thanks,
Robert
btape:
butil.c:285 Using device: "/dev/tape/drive2" for writing.
07-Mar
22:12 btape JobId 0: 3301 Issuing autochanger "loaded? drive 2"
command.
07-Mar
22:12 btape JobId 0: 3302 Autochanger "loaded? drive 2", result is
Slot 101.
btape:
btape.c:372 open device "Drive-2" (/dev/tape/drive2): OK
*readlabel
btape:
btape.c:422 Volume has no label.
Volume
Label:
Id
:
**error**VerNo
: 0
VolName
:
PrevVolName
:
VolFile
: 0
LabelType
: Unknown 0
LabelSize
: 0
PoolName
:
MediaType
:
PoolType
:
HostName
:
Date
label written: -4712-01-01 at 00:00
*q
lsgw0:/home/leblanc#
btape /dev/tape/drive2
Tape
block granularity is 1024 bytes.
btape:
butil.c:285 Using device: "/dev/tape/drive2" for writing.
07-Mar
22:22 btape JobId 0: 3301 Issuing autochanger "loaded? drive 2"
command.
07-Mar
22:22 btape JobId 0: 3302 Autochanger "loaded? drive 2", result is
Slot 105.
btape:
btape.c:372 open device "Drive-2" (/dev/tape/drive2): OK
*readlabel
btape:
btape.c:422 Volume has no label.
Volume
Label:
Id
:
**error**VerNo
: 0
VolName
:
PrevVolName
:
VolFile
: 0
LabelType
: Unknown 0
LabelSize
: 0
PoolName
:
MediaType
:
PoolType
:
HostName
:
Date
label written: -4712-01-01 at 00:00
*