From mboxrd@z Thu Jan  1 00:00:00 1970
From: NeilBrown <neilb@suse.de>
Subject: Re: examining the layout of an existing raid device?
Date: Mon, 26 Sep 2011 20:32:48 +1000
Message-ID: <20110926203248.7ff8303f@notabene.brown>
References: <20110926101824.GA30509@infradead.org>
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To: Christoph Hellwig <hch@infradead.org>
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On Mon, 26 Sep 2011 06:18:24 -0400 Christoph Hellwig <hch@infradead.org>
wrote:

> Maybe I'm just stupid, but is there a way to figure out the exact
> geometry (e.g. pretty print of the superblock) for an existing array
> somehow?  I couldn't find anything in the mdadm man page for it.

mdadm -E /dev/sda

will print the metadata on device /dev/sda which describes the array that it
is a member of.

mdadm -D /dev/md0

will print the geometry of the array /dev/md0

Is that what you wanted?

NeilBeown


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