Have you enabled persistent naming for the virtual tape devices?  Sometimes
the OS gets confused about which drive belongs to \\.\TapeX
<file://./TapeX>or the Unix equivalents.




On Mon, Mar 1, 2010 at 1:49 PM, Chester Martin <cmartin AT spp DOT org> wrote:

> Ahh, I bet that's what's going on here.  Thanks for the info..
>
> We have two edl's and the problem is happening on both of them.  I'll
> come in one morning and about 1/4 of the drives will be in service mode,
> and some of the tapes will show up as "unlabeled".
>
> This morning I came in and all of my vcb proxy server drives were in
> service mode..
>
> Also, in my first post I meant to put that I have CDI off and not CDL..
> :)
>
> -----Original Message-----
> From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] 
> On
> Behalf Of Anacreo
> Sent: Monday, March 01, 2010 10:19 AM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
>  Subject: Re: [Networker] Stable Backups... (What we run, and what was
> changed...)
>
> Yes that was definitely one issue we were experiencing.  Try having
> EMC come and upgrade your EDL's software....  Nice free easy to
> implement fix.
>
> Its so annoying to recreate physical problems in the virtual world for
> the sake of completeness.
>
> Alec
>
> On 3/1/10, Chester Martin <cmartin AT spp DOT org> wrote:
> > Good info..
> >
> > When you say " locking up necessary "tapes"" did those tapes show up
> as
> > "unlabeled" when devices would go offline?  I'm running into issues
> with
> > some devices in my edl's going offline.  I have "CDL" off also.
> >
> > -----Original Message-----
> > From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
> On
> > Behalf Of Anacreo
> > Sent: Saturday, February 27, 2010 2:11 AM
> > To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> > Subject: [Networker] Stable Backups... (What we run, and what was
> > changed...)
> >
> > I have to admit this took much time to get to a stable backup
> > platform...
> >
> > These is our environment that was working, mostly:
> > Sun Solaris 10u3 (T5240 sparc)
> > NetWorker 7.5.1
> > Sun StorageTek SL500 (6 drives)
> > EMC EDL (20 virtual drives)
> > Celerra with NDMP to EDL and SL500...
> >
> > What fixed what....
> > #1) NetWorker 7.5.1 Roll-up 6, this has solved a few really annoying
> > client
> > issues, and an index issue, but by itself appeared to do nothing to
> > improve
> > uptime.
> >
> > #2) We were running NMC on the Sun server, moved this to its own
> Windows
> > box
> > and...
> >     Indexer performed much better, especially around some MSSQL
> > issues...
> >     nsrim taking > 45 minutes to run...
> >     Random crashes - nsrd would simply be locked kill -9 only way to
> > shut it
> > down...
> >      -- to be fair this is EMC Best Common Practice, but they should
> > state
> > up front that your server requires two physical servers then...
> >
> >  #3) Upgrade of the EDL code.
> >       EMC came out last week to upgrade our EDL code (and we were on a
> > fairly recent version already.
> >       We were suffering from virtual devices randomly going offline
> > locking
> > up necessary "tapes" some times stopping backups/clones/etc...
> >       We were suffering from TapeAlert messages about wrong medium...
> >
> > This combo of changes has made our system seem to operate much better,
> > hope
> > this helps anyone out in a similar boat... its going to be difficult
> to
> > convince myself to upgrade things now though.. oh well :-).
> >
> > Alec
> >
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>
> --
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>
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