[Networker] Need further assistance in LTO errors

Hi again,


i'm sorry to disturb the list again with this, but i don't have
found any solution yet for my problem.


I get (occationally) the following scenario:


Wed 10:43:10 media info: suggest mounting 000110 on r2d2 for writing to pool 
'Offsite Clone'
Wed 10:43:11 media waiting event: Waiting for 1 writable volumes to backup pool 
'Offsite Clone' tape(s) or disk(s) on r2d2
Wed 10:43:12 media waiting event: waiting for LTO Ultrium tape 000160 on r2d2
Wed 10:43:40 media alert: setting (LTO Ultrium) tape file size to (100000 
blocks)
Wed 10:43:41 write completion notice: Writing to volume 000160 complete
Wed 10:44:42 media warning: /dev/nst1 opening: Device or resource busy
Wed 10:44:42 /dev/nst1 read open error, Device or resource busy
Wed 10:45:13 media alert: setting (LTO Ultrium) tape file size to (100000 
blocks)
Wed 10:45:16 /dev/nst4 Eject operation in progress
Wed 10:46:48 /dev/nst4 ejected
Wed 10:47:05 media info: loading volume 000110 into /dev/nst4
Wed 10:47:16 /dev/nst4 Verify label operation in progress
Wed 10:48:16 media warning: /dev/nst4 opening: Device or resource busy
Wed 10:48:16 media warning: /dev/nst4 reading: read open error, Device or 
resource busy


Then, for very long time, twice every minute, the following:

Wed 11:00:07 media info: unload retry for jukebox `L700e' failed - will retry 
again.
Wed 11:00:07 media info: unload retry for jukebox `L700e': sleeping 30 seconds



After that, it takes a long time for the system to calm down and
work properly again. I am completely clueless how this could caused.


I have tried to tune the timeout values of the jukebox, but without
any effort. I changed from Jukebox internal cleaning to NetWorker
based cleaning to be sure that it doesn't have anything to do with
the cleaning, but that wasn't the cause, too.

The first 3 tapes (nst0 - nst2) are daisy-chained to an Adaptec
29160, the two others (nst3 + nst4) the same way to a second Adaptec
card. The jukebox control is on the third Adaptec card.

The system is running RedHat linux on 2.4.22 kernel.



With kind regards,

        Frank Altpeter

--
Note: To sign off this list, send a "signoff networker" command via email
to listserv AT listmail.temple DOT edu or visit the list's Web site at
http://listmail.temple.edu/archives/networker.html where you can
also view and post messages to the list.
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=