Re: Probing SCSI Luns with REDHAT 9
From: Dennis Hicks (hicksd8_at_hotmail.com)
Date: 02/28/04
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Date: 28 Feb 2004 05:48:26 -0800
I'm reading this with some interest. Is everybody sure that all LUN's
are being seen by the SCSI (or Fibre) adapter at boot time? Is this a
Linux issue or a RAID configuration issue?
chester0928@hotmail.com (Chester) wrote in message news:<22a2b6d4.0402240631.437937a9@posting.google.com>...
> I have exactly the same problem. I'm using a Maxtronic Arena 8600
> Premium with three arrays (LUN 0, 1, 2) on an Adaptec 29160 (AIC7xxx)
> scsi card with Redhat 9. I've added the same line to my modules.conf
> and dmesg shows it detecting on LUN 0 and LUN 0 shows up in
> /proc/scsi/scsi, but nothing doing to scan the additional LUNs. Were
> you able to resolve this issue?
>
> "BrunoZ" <delta001@netcourrier.com> wrote in message news:<401deaf1$0$32648$626a54ce@news.free.fr>...
> > Hi Pete,
> >
> > Thank you for your help.
> >
> > "Pete Zaitcev (OTID1)" <ot16a6ca05878e44c0@comcast.net> a écrit dans le
> > message de news:pan.2004.02.02.02.26.46.971533@zaitcev.lan...
> > > On Sun, 01 Feb 2004 21:40:24 +0100, BrunoZ wrote:
> > >
> > > > I have just installed RedHat 9 with a RAID system with several
> > > > logical LUN's but my machine does not probe all the Lun's.
> > > >
> > > > I have added the line in the /modules.conf:
> > > > options scsi_mod max_scsi_luns=16
> > >
> > > Are you sure it's /modules.conf and not /etc/modules.conf?
> >
> > Yes, it is the /etc/modules.conf.
> > One more info, the scsi adapter I am using is a Fibre Channel Qlogic Qla2300
> > board.
> >
> > >
> > > Unfortunately all I can think about is to uncompress the
> > > initrd manually, mount it on loopback, edit its /linuxrc
> > > and add the stupid parameter there, umount, compress it back.
> > > It is guaranteed to work, but tedious. Also, you have to
> > > repeat it every time up2date installs a new kernel.
> >
> > Could you please give me the exact commands to do this.
> >
> > >
> > > To help with that, scsi core takes the same parameter
> > > as a setup string from grub.conf, but I have no idea
> > > if __setup() works when a module is not built into the kernel.
> > > Try it.
> >
> > I am using Grub, do you think I have to add the line in grub.conf :
> > append="max_scsi_luns=16"
> >
> > >
> > > -- Pete
> > >
> >
> > Many thanks.
> >
> > Bruno.
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