linux-kernel - Re: Linux mdadm superblock question.

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Message-ID: <4B7719C1.1060400@zytor.com>
Date:	Sat, 13 Feb 2010 13:29:37 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Justin Piszcz <jpiszcz@...idpixels.com>
CC:	Michael Evans <mjevans1983@...il.com>, linux-raid@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: Linux mdadm superblock question.

On 02/13/2010 12:07 PM, Justin Piszcz wrote:
> 
> My original question was does the newer superblock do anything special
> or offer new features *BESIDES* the quicker resync?
> 

0.90 has a very bad problem, which is that it is hard to distinguish
between a RAID partition at the end of volume and a full RAID device.
This is because 0.90 doesn't actually tell you the start of the device.

Then, of course, there are a lot of limitations on size, number of
devices, and so on in 0.90.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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