Re: [Networker] Very Frustrating Problem

Well, we're getting a bit closer. In terms of stability, we're at about 90%.
Still not where
we want to be, but closer.

We've installed the Adaptec 6.3.9 scsi drivers with the 2.4.29 kernel. Bus
resets are down
to 1 or 2 a day. These are occuring when networker is trying to load or
unload a bunch of
tapes at once, so we can live with it.

We are still getting tape devices disappearing. This seems to be due to a
3e13 error on the
jukebox. This is a " Drive Connection State Transition - Drive Not
Responding" message.
This error is on the jukebox and not seen by the server. So it appears that
when this error
pops up on the jukebox, the server loses track of the drive (which is
understandable)
and never recovers (which is unfortunate). So Storagetek is looking into
this problem now.

Anyone out there had these errors? Any resolutions to these errors?

Ken

----- Original Message ----- 
From: "Ken Gehring" <kgehring AT MYREALBOX DOT COM>
To: <NETWORKER AT LISTSERV.TEMPLE DOT EDU>
Sent: Thursday, February 17, 2005 6:48 PM
Subject: Re: [Networker] Very Frustrating Problem


> Well, I thank you all for the ideas. We don't have the /etc/stinit.def
file
> so changing/editing that is out.
> I think I have a plan of attack now.
>
> 1) we will try the latest Adaptec driver (6.3.9) if it works great
>     if not
> 2) next we will try the "old" adaptec driver (aic7xxx_old)
>     if that doesn't work
> 3) we will go to our LSI cards again
>    if htat doesn't work ...... I would hate to have to try Win 2k3
>
> If you have more ideas send them along. I'll keep you all posted as to our
> progress and
> if we find a resolution I'll post instructions on how to implement it.
>
> Ken
>
> ----- Original Message ----- 
> From: "Ken Gehring" <kgehring AT MYREALBOX DOT COM>
> To: <NETWORKER AT LISTSERV.TEMPLE DOT EDU>
> Sent: Wednesday, February 16, 2005 3:17 PM
> Subject: [Networker] Very Frustrating Problem
>
>
> > We are running Networker 6.1.4 (upgraded from 6.1.3 etc) on RedHat AS
3.0
> with the latest kernel 2.4.21-27.0.2.ELsmp and we have also tried the
2.4.29
> kernel. The Jukebox is a Storagetek L-80 with 8 SDLT drives (set up 2 per
> scsi channel and the picker on its own channel). The scsi cards are 3
> Adaptec 39160 cards (we've also tried Buslogic cards). The computer is an
HP
> ML370 with 6GB of memory and about 200GB of disk and dual  2.8GHz
> processors. We've also tried this with similar Dell hardware (Dell 4600
> configured about the same as the HP).
> >
> > Now to the problem. We keep getting an inordinate number of scsi bus
> resets (varies from 6 to 20 per day). We get tape drives that disappear
(no
> device present) or get into a state where they are useable but you can't
> eject the tape.
> >
> > We've tried a lot of configuration changes and are now experimenting
with
> changing the command queueing depth to the tape drives (we've tried the
> default of 32 as well as 16, 8 and 4 all with no success).
> >
> > Has anyone seen this type of problem or behavior? Did you manage to
> resolve the problem? How?
> >
> > Thanks in advance.
> >
> > Ken Gehring
> >
> > --
> > Note: To sign off this list, send a "signoff networker" command via
email
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> > http://listserv.temple.edu/archives/networker.html where you can
> > also view and post messages to the list. Questions regarding this list
> > should be sent to stan AT temple DOT edu
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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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--
Note: To sign off this list, send a "signoff networker" command via email
to listserv AT listserv.temple DOT edu or visit the list's Web site at
http://listserv.temple.edu/archives/networker.html where you can
also view and post messages to the list. Questions regarding this list
should be sent to stan AT temple DOT edu
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