From: Neil Brown <neilb@cse.unsw.edu.au>
To: "Trever L. Adams" <tadams-lists@myrealbox.com>
Date: Mon, 24 Jan 2005 15:19:41 +1100
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Message-ID: <16884.30557.631532.32864@cse.unsw.edu.au>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: md and RAID 5 [was Re: LVM2]
In-Reply-To: message from Trever L. Adams on Friday January 21
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On Friday January 21, tadams-lists@myrealbox.com wrote:
> Thank you all for having been so kind in your responses and help.
> 
> However, there is one more set of questions I have.
> 
> Does the md (software raid) have disk size or raid volume limits?

2^31 sectors for individual disks.  Arrays do not have this limit.

> 
> If I am using such things as USB or 1394 disks, is there a way to use
> labels in /etc/raidtab and with the tools so that when the disks, if
> they do, get renumbered in /dev that all works fine. I am aware that the
> kernel will autodetect these devices, but that the raidtab needs to be
> consistent. This is what I am trying to figure out how to do.

Scrap raidtools and /etc/raidtab.  Explore "mdadm" and /etc/mdadm.conf

NeilBrown
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