Re: tar tvf /dev/rct0 on Dell PowerVault 110T locks up server

steves_at_unicaresys.com
Date: 03/29/04 

Date: 29 Mar 2004 11:31:53 -0800

Mike Brown <mike@tkg.ca> wrote in message news:<4064BC9C.CD1C462A@tkg.ca>...
> "steves@unicaresys.com" wrote:
> >
> > I have installed SCO Open Server 5.0.7 on a Dell PowerEdge 1750 with
> > an external PowerVault 110T, LTO-2 tape drive. I am able to write to
> > the tape drive using this command:
> >
> > tar cvf /dev/rct0 *
> >
> > However, when I try to read the contents of the tape with:
> >
> > tar tvf /dev/rct0
> >
> > I get this error:
> >
> > WARNING: "WRITE_10" command timed out 12 seconds after its start on
> > ha=0 id=0 lun=0 Request=C103E8C0
> >
> > Warning: Resetloc: Transition to Ready Failure on ha=0
> >
> > Then the server completely locks up.
> >
> > With Dell's assistance I ran diagnostics which bypassed SCO entirely.
> > I was able to successfully write to and read from the tape drive using
> > Dell diagnostics.
> >
> > Ideas on how to fix this?
> >
> > Steve Stokes
> > UNI/CARE Systems Inc.
> > Sarasota, Florida
>
> You may have to increase the amount of time the driver will wait before
> timing out. A different server, tape drive and controller, but with a
> similar issue I editted /etc/conf/pack.d/"driver name"/space.c and set
> the time out to 0 (zero). This means the system waits until the drive
> responds. Most of the time it was in a few seconds, but every once
> in a while it was over 10 seconds, and previously that would lock that
> controller up until a reboot.
>
> Is the tape drive on "ha=0 id=0 lun=0" ? I normally set tapes at id=2
> and the boot drive at id=0.
>
> Mike

I did set the timeout value in the file you mention to 0 but this did
not fix the problem.

The tape drive is on ha=1 id=1 lun=0. It is by itself on its own SCSI
controller.

SCO tells me they have not certified this tape drive as working with
5.0.7. So it looks like we will trading this in for a tape drive that
SCO has certified.

Thank you for your response.

Steve Stokes
UNI/CARE Systems Inc.
Sarasota, FL

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