Bacula-users

Re: [Bacula-users] Fibre Channel drives keep switching

2008-11-19 12:39:22
Subject: Re: [Bacula-users] Fibre Channel drives keep switching
From: Alan Brown <ajb2 AT mssl.ucl.ac DOT uk>
To: Robert LeBlanc <robert AT leblancnet DOT us>
Date: Wed, 19 Nov 2008 17:36:48 +0000 (GMT)
On Wed, 19 Nov 2008, Robert LeBlanc wrote:

> > You can write a udev rule to lock the drives down. I wrote one awhile
> > back to keep the changer device the same.
> >
> > dev6 ~ # cat /etc/udev/rules.d/55-bacula.rules
> > SUBSYSTEM=="scsi",ATTRS{vendor}=="EXABYTE*",ATTRS{type}=="8",
> > SYMLINK+="autochanger1 changer"

For the drives you're better off creating udev rules to create something
like /dev/scsi/ntape/{drive-WWID} and /dev/scsi/generics/{WWID}

These won't change no matter where on the scsi/fabric the drive is.

I've had a request ticket in with Redhat to implement this on RHEL4/5 for
a long time, ditto with the /dev/sg/ devices for the same reason.

(Not to mention a strong wish for multipath support for tapes and
generics...)


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