Message-ID: <438CAA7B.2030500@tmr.com>
Date: Tue, 29 Nov 2005 14:22:35 -0500
From: Bill Davidsen <davidsen@tmr.com>
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To: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
CC: linux-kernel@vger.kernel.org
Subject: Re: Too many disks in system? (RAID5)
References: <20051128222558.GN2529@mail.muni.cz> <20051128223623.GA3803@csclub.uwaterloo.ca>
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Lennart Sorensen wrote:
> On Mon, Nov 28, 2005 at 11:25:58PM +0100, Lukas Hejtmanek wrote:
> 
>>Hello,
>>
>>I have system with attached SATA array which contains 24 disks. I wanted to run
>>software RAID 5, but 24 disks means, that I would need /dev/sda to /dev/sdx
>>devices with major 8 and last minor 384. Minor seems to be limited to 8 bits.
>>Is there any chance to run software array using all 24 disks?
>>
>>My test was with mknod v. 5.2.1 and kernel 2.6.14.3
> 
> 
> Major 8 is not the only scsi major.  Look at devices.txt in the kernel
> Documentation dir.  MAKEDEV also usually knows how to make more scsi
> devices.  For example major 65.  Just use MAKEDEV /dev/sdx and see what
> it creates.

Does udev not know how to handle this?
-- 
    -bill davidsen (davidsen@tmr.com)
"The secret to procrastination is to put things off until the
  last possible moment - but no longer"  -me

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