Networker

Re: [Networker] Red Hat kernel version

2005-11-17 02:12:01
Subject: Re: [Networker] Red Hat kernel version
From: Dag Nygren <dag AT NEWTECH DOT FI>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 17 Nov 2005 09:09:07 +0200
> In regard to: [Networker] Red Hat kernel version, Carl Farnsworth said (at...:
> 
> > Today's contest:  what's the latest kernel version for AS 2.1 that anyone
> > has a NetWorker Server (7.2.1) running on?
> 
> This probably isn't much help to you, but we had to roll our own kernel on
> AS 2.1, for two reasons:
> 
> - we use QLogic fibre HBAs, and the qla drivers in the 2.4.9.e-* kernels
>    are pretty out of date.

Yep.

> - more importantly (for us), the Red Hat 2.4.9.e-* kernels are NOT built
>    with CONFIG_SCSI_MULTI_LUN=y, so having multiple devices on
>    one target id (but different LUNs) was a problem.  There's probably a
>    way around that issue (other than forcefully probing a particular LUN
>    manually), but we found it easiest to just build our own kernel with
>    multi-lun support enabled.

You can add the following line in /etc/modules.conf:
options scsi_mod max_scsi_luns=256 scsi_allow_ghost_devices=1

BRGDS
Dag

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