Thanks for this great tip, Austin.
Rather than disabling the execution bit, I commented out the execution
of the make_scsi_dev from the init.d/netbackup script. And this
modification worked.
I double-checked my /proc/scsi/scsi file to make sure that all of the
tape drives were, indeed, detected at boot and was quite pleased to find
that they were.
So now I can get back to sharing the tape drives between all of my
media servers.
On Wed, 22 Mar 2006, Austin Murphy wrote:
> Date: Wed, 22 Mar 2006 13:59:41 -0500
> From: Austin Murphy <austin.murphy AT gmail DOT com>
> To: Kathryn Hemness <kfhemness AT ucdavis DOT edu>
> Cc: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] Sharing tapedrives with Linux Media servers
>
> I have a very similar config and the problem seems to lie in the linux
> command "make_scsi_dev" which creates and/or deletes the device
> links that netbackup uses. If a drive is in use, it will delete the
> link to it for some (dumb?) reason. make_scsi_dev gets run on every
> startup.
>
> Once all the links were created, I disabled the execute bit on this command.
>
> This obviously doesn't address the root cause, but it stops the problem.
>
> Austin
>
> On 3/22/06, Kathryn Hemness <kfhemness AT ucdavis DOT edu> wrote:
> > Greetings,
> >
> > I've been fighting with sharing tapedrives with a Linux media server
> > for about a month now and I'd really appreciate some help.
> >
> > My problem lies not with the sharing but with the linux device paths
> > becoming unconfigured when the linux server is rebooted. I have 2
> > Solaris servers and 1 Linux server, and the drives are in an 8-drive
> > library connected to a fiber-channel switch.
> >
> > When I reboot the Linux server when any of the tape drives is in use
> > by the other servers, my Linux server won't configure any of them and
> > ltid won't start. This behavior is unique to shared tape drives; if
> > I configure a couple of drives in the library as dedicated to the Linux
> > media server, then the device files persist across reboots.
> >
> > I've just ordered 2 more Linux boxes to replace the Solaris boxes
> > because of their superior throughput so I have to get this issue resolve.
> >
> > Thanks for any help.
> >
> >
> > --kathy
> >
> > _______________________________________________
> > Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> >
>
--kathy
===============================================================================
Kathryn Hemness kfhemness AT ucdavis DOT edu
System Administrator phone: 530.752.6547
Campus Data Center & Client Services fax: 530.752.9154
|
