Networker

Re: [Networker] Drive unable to unload

2005-02-07 16:15:15
Subject: Re: [Networker] Drive unable to unload
From: Itzik Meirson <imeirson AT MBI.CO DOT IL>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Mon, 7 Feb 2005 23:12:31 +0200
You do not really have to walk to the jukebox...
You can use the sjirdtag command that will talk directly to the jukebox
and provide you the REAL status of the drives/slots.
Itzik 

> -----Original Message-----
> From: Legato NetWorker discussion 
> [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of Brian Huffman
> Sent: Monday, February 07, 2005 18:59
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: Re: [Networker] Drive unable to unload
> 
> ***********************
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> 
> Thanks - Unfortunately this only ends in the drive being put 
> into service mode, so this doesn't seem like to correct way 
> for things to work.  In addition, I don't really believe that 
> the tape has been unmounted.  I'll have to run over to the 
> library to check this out, but the last time this happened, 
> the drive was *not* unmounted, and it was completely 
> unresponsive.  It couldn't even be unmounted from the front 
> panel of the jukebox.  I needed to power-cycle the jukebox to 
> resolve this issue.
> 
> Brian
> 
> -----Original Message-----
> From: Legato NetWorker discussion 
> [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
> On Behalf Of thierry.faidherbe AT HP DOT COM
> Sent: Monday, February 07, 2005 11:43 AM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: Re: [Networker] Drive unable to unload
> 
> In high active datazone, it can happen that nsrd forget to 
> update jukebox map (fields loaded barcode, loaded volume and 
> loaded slot) while unloading volumes. Most of the time, it's 
> done when multiple nsrjb are running concurrently, the 
> changes done by the first nsrjb not being commited yet into 
> config files and in memory jukebox maps.
> 
> Jukebox map not being updated, networker still think a tape 
> to be loaded in the device and try to unload it. But reality 
> is such no tape to be loaded.
> 
> Result is nsrmmd fails with an opening I/O error. Then nsrjb 
> tries, during 20 minutes to unload the tape. After that, it 
> reports an error and mark the slot as unloaded. (In some 
> time, you can also lose the inventory of the slot containing 
> the ghost volume before second nsrjb).
> 
> I never found a way to reduce these 20 minutes to something 
> more acceptable but am working with it. It has nothing to do 
> with load/unload sleep, these values just being the time 
> networker waits between jukebox PUT to device or UNLOAD from 
> device before opening the OS driver (/dev/rmt/...., \\.\tapex)
> 
> HTH,
> 
> Th
> 
> 
> > I have a similar problem on an ATL-P7000 tape library.  
> However I *am* 
> > still on a Sun server platform.  Does anyone know what the unload
> sleep
> > for that type of library should be?  Mine is set at "5".
> >
> > I get these types of errors almost every weekend:
> >
> > 02/05/05 06:38:22 nsrd: /dev/rmt/45cbn Eject operation in progress
> > 02/05/05 06:42:33 nsrd: media warning: /dev/rmt/45cbn opening: I/O
> error
> > 02/05/05 06:42:53 nsrd: media info: unload error for jukebox
> `ATL-P7000'
> > detected.  Retrying
> > 02/05/05 06:42:53 nsrd: media info: unload retry for jukebox
> > `ATL-P7000': sleeping 30 seconds
> > 02/05/05 06:43:38 nsrd: media info: unload retry for jukebox
> `ATL-P7000'
> > failed - will retry again.
> > 02/05/05 06:43:38 nsrd: media info: unload retry for jukebox
> > `ATL-P7000': sleeping 30 seconds
> > <snip>
> >
> > This continues until the drive goes into service mode.  Is this
> possibly
> > related to the unload sleep?  Or is there something more wrong here?
> >
> > Thanks,
> > Brian
> >
> > --
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Note: To sign off this list, send a "signoff networker" command via email
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should be sent to stan AT temple DOT edu
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