Re: [Bacula-users] how to proceed after i/o error during bscan

> Op 2013-04-15 om 04:14 schreef Michael Stauffer _g:
> > Bacula 3.0.1
> >
> > Hi,
> >
> > I'm tantalizingly near the end of a bscan reconstruciton of a catalog
over 35
> > tapes. You may remember my posts starting mid February - it took a while
> but it
> > also turns out both drives in my device had failed, so they've been
> replaced.
> >
> > It's taken 11 days so far to get to tape 30 out of 35, and ... an i/o
error has
> > occured.
> >
> > bscan: bscan.c:650 Could not find Job for SessId=9 SessTime=1358880703
> record.
> > 14-Apr 17:47 bscan JobId 0: Error: block.c:1004 Read error on fd=3 at
file:blk
> > 1202:13403 on device "LTO5-0" (/dev/st0). ERR=Input/output error.
> > Bacula status: file=1202 block=13403
> > Device status: ONLINE IM_REP_EN file=1202 block=-1
> >
> > The bscan process is still running. Currently 'mt -f /dev/st0 status' is
> > returning "/dev/st0: Device or resource busy".
> >
> > Assuming I can get the tape 30 in the drive working again, how do I
> proceed?
> >
> > Do I return to the bscan process and hit 'enter' to see if it will start
again
> > from tape 30?
> >
> > Do I kill the bscan process and start again from tape 30? Can I assume
that
> > whatever it finds on tape will be added to whatever's been added to the
> > database so far?
> >
> > Or do I have to start from scratch?! I hope not!!!
> 
> I think^Wassume that bscan can/SHOULD handle a single tape cartridge.
> 
> This is the command line the original poster shared with us on 2013-04-02
>  ./bscan -b /bacula/bscanVolsBootstrap.bsr -c /etc/bacula/bacula-sd.conf
-v -
> s -m /dev/st0
> 
> The tricky part might in the high tech stuff behind /dev/st0.
> If /dev/st0 is simple tape drive, it will scan a single tape.
> However if /dev/st0 is a tape library, expect that is goes through _all_
tapes.
> 
> So check what kind of hardware your /dev/st0 is.
> 
> 
> In other words:
>   I understand the wish to avoid thirty tapes again,
>   but I'm not familar with bscan, neither known what /dev/st0
>   the OP has.
> 
> 
> Groeten Stappers

Hi, yes my command-line is

        ./bscan -b /bacula/bscanVolsBootstrap.bsr -c
/etc/bacula/bacula-sd.conf -v -s -m /dev/st0

where bscanVolsBootstrp.bsr holds a list of all volumes in the library.

/dev/st0 is the the first tape drive w/in a library. However it does not go
through all tapes automatically, I have to manually load each one as
prompted by bscan after each tape finishes.

The bscan process has quit on its own, and the drive is responding again (it
wants to be cleaned, which I'll do).
So I guess I have nothing to lose by trying to pick up the process again
from tape 30 and assuming it will add what it finds to what's already been
writen to the catalog database. The database already has 19G of data, so
obviously it's been writing at least some data to the database along the way
(I assumed that, but haven't seen the bscan docs say explicitly it does this
that I remember).

Thanks for any additional advice!

-Michael



------------------------------------------------------------------------------
Precog is a next-generation analytics platform capable of advanced
analytics on semi-structured data. The platform includes APIs for building
apps and a phenomenal toolset for data science. Developers can use
our toolset for easy data analysis & visualization. Get a free account!
http://www2.precog.com/precogplatform/slashdotnewsletter
_______________________________________________
Bacula-users mailing list
Bacula-users AT lists.sourceforge DOT net
https://lists.sourceforge.net/lists/listinfo/bacula-users