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Old 08-17-2005, 03:06 AM   #1
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Registered: Aug 2005
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Making internal disks persistent in a SAN envoirnment

Hello all,

Hopefully this is possible...

I have a Dell 2650 running RH AS 3.0 Update 3 attached to a SAN with about 20 disks visible to it. I have one internal disk, and a dual-port QLOGIC 2342 HBA.

My problem is any time I add/remove SAN devices, the disk assignment for my internal disk changes and wont boot, of course. I can make the SAN device assignment persistent via the QLOGIC driver feature, but I dont know how to make the internal device persistent. I can get around finding/mounting additional non-boot internal devices by referencing the device labels in /etc/fstab. If possible, I would like to do the following;

1) Reserve sda for use only by the internal disk and the additional SAN devices can append onwards (b,c,d,e,f, etc)

2) Ability to reserve additional devices for internal disks.

Comments/suggestions greatly welcomed!

Old 08-17-2005, 06:53 AM   #2
Registered: May 2004
Location: Antwerp, Belgium
Distribution: slackware
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you can make rules in the config file of udev

don't know exacly how your rules will have to be
here is a link: howto
Old 08-17-2005, 10:22 AM   #3
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Registered: Aug 2005
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Thanks for your information.....
Unfortunately RH 3.0 UP3 runs Kernel 2.4 which I cannot change so no existence/way to use udev

If I could only change the load pattern of the drivers, so that aacraid loads before QLA2300 ...
Changing the aliases in /etc/modules.conf probably wont help..

Cheers, James


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