From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen)
To: Lukas Hejtmanek <xhejtman@mail.muni.cz>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Too many disks in system? (RAID5)
Date: Mon, 28 Nov 2005 17:36:23 -0500 [thread overview]
Message-ID: <20051128223623.GA3803@csclub.uwaterloo.ca> (raw)
In-Reply-To: <20051128222558.GN2529@mail.muni.cz>
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.
Len Sorensen
next prev parent reply other threads:[~2005-11-28 22:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-28 22:25 Lukas Hejtmanek
2005-11-28 22:36 ` Lennart Sorensen [this message]
2005-11-29 19:22 ` Bill Davidsen
2005-11-29 22:01 ` Lennart Sorensen
2005-11-30 15:34 ` Tomasz Torcz
2005-11-30 15:47 ` Lennart Sorensen
2005-12-02 16:37 ` Bill Davidsen
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