I was having similar problems on my AIX 5.1 32-bit environment with
both TSM 5.2.2 and 5.2.3.  The symptoms were both a 004C6D32 OP code
(on dismounts) and a 00586D38 OP code (on mounts), with no sense data
for either I/O error.

I opened a call with support this summer and eventually they tracked
it down to thread conflicts when opening a 349X library.  They've
assigned APAR IC42661 for the problem, but there is no ETA for a fix.

The dismounts aren't an issue because the server retries and is able
to (eventually) open the library.  The mounts are more annoying, but
in my case it usually just resulted in the I/O error being logged and
the mount being tried on another drive.

=Dave

rh wrote:
>
> David,
> I'm running TSM 5.2.2 and AIX 5.1 64 bit. I see the
> same error a few times a day. I'm going to check IBM
> for any known problems and if there aren't any, open
> an incident with IBM support.
>
> Rod Hroblak
> ADP
> --- AMHOUCHE Youssef <Youssef.Amhouche AT SOCGEN DOT COM>
> wrote:
>
> > Hi David!
> >
> > Ensure that the DEVICE parameter associated whit the
> > library was idetified
> > correctly in the DEFINE LIBRARY command, and that
> > the library device is
> > currently powered on and ready. If the library hes
> > an access door, make sure
> > it is closed.
> >
> >
> > -----Message d'origine-----
> > De : ADSM: Dist Stor Manager
> > [mailto:ADSM-L AT VM.MARIST DOT EDU]De la part de
> > David E Ehresman
> > Envoyi : mercredi 6 octobre 2004 12:47
> > @ : ADSM-L AT VM.MARIST DOT EDU
> > Objet : 3494 library error codes
> >
> >
> > I'm getting message:
> >   ANR8301E I/O error on library 3494 (OP=004C6D32,
> > SENSE=N/A,
> > CC=00000000). (SESSION: 470264)
> > Any idea what that OP code is and where they are
> > documented?
> >
> > 3494 library on TSM 5.2.3.1 running on AIX 5.1 64
> > bit
> >


--
Hello World.                                    David Bronder - Systems Admin
Segmentation Fault                                     ITS-SPA, Univ. of Iowa
Core dumped, disk trashed, quota filled, soda warm.   david-bronder AT uiowa 
DOT edu