If you are getting tapes stranded in drives in the 9710, make sure that your
drive microcode is current (at least level 70 for the DLT 7000) and that the
library microcode level is at 1.8.05. This level addressed a problem with
dismount failures and DLT 7000 drives. You may see dismount failure messages in
your activity log prior to running into the "stranded tape" problem, but
sometimes there may be no indication that this has occurred. STK can also check
the library error log to see if reach errors, etc. are occurring on the
robotics. Also there is a known issue with DLT 7000 drive power supplies
(marginal voltage levels) and dismount failures. Your CE can check this one out
as well.
Jackson, Sandye wrote:
> Thanks Paul,
> I have done this sight check before and got things straightened out (at
> least, I think I did) but we didn't know if the problem was with ADSM or the
> STK9710. Now, that you have cleared up this part, can it be fixed? If so,
> how and when? (You're right about one thing. It is a ROYAL pain.)
> Also, referring back to my original message, any thoughts about the
> aggregates and how to keep them from degrading and then becoming disabled.
> Also, what are aggregates? We're having so much fun here my head is
> beginning to hurt!
> Sandye J. Jackson
>
> > -----Original Message-----
> > From: Paul Zarnowski [SMTP:vkm AT CORNELLC.CIT.CORNELL DOT EDU]
> > Sent: Wednesday, October 07, 1998 3:09 PM
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Subject: Re: Problems with tapes constantly being made unavailable
> >
> > Ok, ADSM has lost track of which drives have tapes in them. It thinks
> > there is a drive free which in fact has a tape left in it. This may have
> > happened for a number of reasons, most likely some sort of I/O error
> > unloading the drive. Perhaps a tape got stuck in the drive. Until you
> > fix
> > this, ADSM will keep attempting to put tapes into that drive and mark them
> > unavailable when it is unable to do so. THis is a royal pain - I wish
> > ADSM
> > was smart enough to figure this out and simply mark the drive unavailable
> > instead of the tape volumes (are you listening Tucson?).
> >
> > Try doing this:
> > 1. Issue a QUERY MOUNT. This will show you which drives ADSM THINK have
> > tapes in them.
> > 2. Visually inspect the tape drives. You should find at least one drive
> > that has a tape in it which ADSM does not think has a tape in it.
> >
> > You will have to unload the tape from the drive and get it back into the
> > library. The best way I know of to do this is as follows:
> > 1. Physically remove the tape from the drive. Refer to the DLT7000
> > manual.
> > 2. CHECKOUT LIBVOL <libname> <volser> CHECKL=NO REMOVE=NO
> > 3. CHECIN LIBVOL <libname> <volser> SCRATCH=yes|no (whatever's
> > appropriate)
> >
> > Hope this helps.
> > ..Paul
> > --
> > At 02:24 PM 10/7/98 -0700, you wrote:
> > >Yes, I do get I/O errors with the following message:
> > >
> > >09/24/98 21:05:32 ANR1044I Removable volume 400247 is required for
> > space
> > >
> > > reclamation.
> > >
> > >09/24/98 21:05:32 ANR8324I DLT volume 400247 is expected to be
> > mounted
> > >
> > > (R/O).
> > >
> > >09/24/98 21:05:34 ANR8300E I/O error on library STK9710 (OP=00006C03,
> > >
> > > CC=315, KEY=05, ASC=3B, ASCQ=0D,
> > >SENSE=70.00.05.00.00.00-
> > > .00.0C.00.00.00.00.3B.0D.00.00.00.00.00.00.,
> > >Description-
> > > =The destination slot or drive was full in an
> > attempt
> > >to
> > > move a volume). Refer to Appendix B in the
> > >'Messages'
> > > manual for recommended action.
> > >
> > >09/24/98 21:05:34 ANR1401W Mount request denied for volume 400247 -
> > >mount
> > > failed.
> > >
> > >09/24/98 21:05:34 ANR0986I Process 8074 for SPACE RECLAMATION running
> > in
> > >
> > > the BACKGROUND processed 131 items for a total of
> > >
> > > 63,141,865 bytes with a completion state of
> > FAILURE
> > >at
> > > 21:05:34.
> > >
> > >
> > >There were drives available. The next time ADSM called for this tape it
> > had
> > >been marked 'unavailable'. ??????????????
> > >Sandye J. Jackson
> > >
> > >> -----Original Message-----
> > >> From: Paul Zarnowski [SMTP:vkm AT CORNELLC.CIT.CORNELL DOT EDU]
> > >> Sent: Wednesday, October 07, 1998 12:41 PM
> > >> To: ADSM-L AT VM.MARIST DOT EDU
> > >> Subject: Re: Problems with tapes constantly being made unavailable
> > >>
> > >> Are you getting I/O errors?
> > >> If so, make sure you have current firmware levels on your drives (V72).
> > >> What's the full message text for "aggragates are degrading"? I haven't
> > >> seen this one before.
> > >>
> > >> ..Paul
> > >> --
> > >> At 12:09 PM 10/7/98 -0700, you wrote:
> > >> >We have a major problem here. We are running ADSM V3.1.0 on an AIX
> > >> server
> > >> >attached to an STK9710 library using DLT7000 tapes. We keep having
> > >> problems
> > >> >with tapes not being mounted even tho there are drives available (we
> > have
> > >> 6)
> > >> >and then they are marked 'unavailable' and I have to check this out
> > every
> > >> >day and put them back in 'read/write' status. Also, after this starts
> > to
> > >> >occur I get messages that 'aggragates are degrading' and that I need
> > to
> > >> do
> > >> >an Audit. Today my aggragates weren't just degraded, they were
> > disabled.
> > >> >STK says that their system is working fine. IBM says that their's is
> > >> also
> > >> >ok. Heeeellllppppp!!!
> > >> >
> > >> >Sandye J. Jackson
> > >> >
> > >
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