Stefan, et al,

We have decided that the standalone tape drive has failed, it
will not read nor write known good tapes.

We are thinking of allocating a large NFS partition (I know, bad
mojo and performace but apparently/supposedly its going to be temporary)
and just letting the files live in the "amanda work area".

The question then becomes one of file restores.

How do you restore data from holding area chunks ?
Do I just cat them together (is there an easy way to get
them in order ?), if there a good method of reading them ?
Or can I create readable files that aren't chunked ?

I know that the right way is to build a new version of amanda,
using vtapes, and install it on the server that has the large
partition - but that machine too is scheduled to move offsite.

Big investment in time for a solution that is about to walk out
of the door, but I have to at least try and get backups done for
the machines our site will retain.

                                                thanks,

                                                Brian

On Fri, Feb 29, 2008 at 11:13:06AM -0500, Brian Cuttler wrote:
> 
> Stefan,
> 
> I didn't realize the amlabel command wrote a log, I have it, 
> unfortunately not as informative as one might like in these
> circumstances.
> 
> samar 5# more amlabel.20080229105753.debug 
> amlabel: debug 1 pid 873486 ruid 0 euid 0: start at Fri Feb 29 10:57:53 2008
> amlabel: writing label: Invalid argument
> amlabel: pid 873486 finish time Fri Feb 29 10:57:53 2008
> 
> The change from the jukebox to the standalone drive involved
> these changes to amanda.conf.
> 
> samar 11# diff amanda.conf amanda.conf-20080221-jukebox
> 93,95c93,94
> < #runtapes 2   # number of tapes to be used in a single run of amdump
> < runtapes 1    # number of tapes to be used in a single run of amdump
> < #tpchanger "chg-zd-mtx"       # the tape-changer glue script
> ---
> > runtapes 2    # number of tapes to be used in a single run of amdump
> > tpchanger "chg-zd-mtx"        # the tape-changer glue script
> 97,98c96
> < #tapedev "/dev/sdlt2" # the no-rewind tape device to be used
> < tapedev "/dev/sdlt"   # the no-rewind tape device to be used
> ---
> > tapedev "/dev/sdlt2"  # the no-rewind tape device to be used
> 101,102c99,100
> < #changerfile "/usr5/amanda/chg-zd-mtx"
> < #changerdev "/dev/scsi/sc7d1l0"
> ---
> > changerfile "/usr5/amanda/chg-zd-mtx"
> > changerdev "/dev/scsi/sc7d1l0"
> 
> Apparently I didn't change the tape type, I probably should have
> but I don't know that the tapes differ except for capacity as the
> current drive is an SDLT 220.
> 
> samar 13# mt -f /dev/sdlt status
>         Controller: SCSI
>         Device: QUANTUM: SuperDLT1       3737?7
>         Status: 0x20262
>         Drive type: unknown
>         Media : READY, writable, at BOT
> 
> samar 14# mt -f /dev/sdlt2 status
>         Controller: SCSI
>         Device: QUANTUM: SDLT320         3838?8
>         Status: 0xa00
>         Drive type: unknown
>         Media : Not READY
> 
> From amanda.conf, the tapetype definition. Nothing terribly odd
> here I don't think.
> 
> define tapetype SDLT {
>     comment "QUAMTUM SDLT320"
>     length 160000 mbytes
>     filemark 100 kbytes         # don't know a better value
>     speed 100 kbytes            # dito
> }
> 
> 
> And again, I was able to label and write the first several tapes
> without addititional changes to the config.
> 
> I was also unable to dump or tar to the drive, I wonder if we
> don't have a general failure.
> 
> I will ask a user to see if they can access the drive properly
> with whatever tapes they normally use in this drive (it was used
> for user data archiving before I commendeered it.
> 
>                                               thanks,
> 
>                                               Brian
> 
> 
> 
> On Fri, Feb 29, 2008 at 09:57:07AM +0100, Stefan G. Weichinger wrote:
> > Brian Cuttler schrieb:
> > > Hello Amanda users,
> > > 
> > > I had the jukebox I use on one of my SGI/IRIX Amanda servers fail
> > > and we reverted to the attached standalone SDLT 220.
> > > 
> > > I modified amanda.conf to use the different tape drive and to
> > > not use any changer config.
> > > 
> > > I was able to label (one/day) a few tapes (and write them that evening),
> > > but I'm having difficulty with subsequent tapes.
> > > 
> > > samar 8# /usr/local/sbin/amlabel -f samar SAMAR30
> > > rewinding, reading label, reading label: Invalid argument
> > > rewinding, writing label SAMAR30
> > > amlabel: writing label: Invalid argument
> > 
> > So you use another tapetype.
> > What does it look like? Any specific settings in there?
> > Using some unusual blocksize or something?
> > 
> > Also browse the log- and debugfiles for anything related.
> > 
> > Stefan
> ---
>    Brian R Cuttler                 [EMAIL PROTECTED]
>    Computer Systems Support        (v) 518 486-1697
>    Wadsworth Center                (f) 518 473-6384
>    NYS Department of Health        Help Desk 518 473-0773
> 
> 
> 
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> 
> 
---
   Brian R Cuttler                 [EMAIL PROTECTED]
   Computer Systems Support        (v) 518 486-1697
   Wadsworth Center                (f) 518 473-6384
   NYS Department of Health        Help Desk 518 473-0773



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