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From: "H. Peter Anvin" <hpa@zytor.com>
To: Chris Mason <chris.mason@fusionio.com>,
	"Chris L. Mason" <clmason@fusionio.com>,
	Marios Titas <redneb8888@gmail.com>,
	linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: Feature request: true RAID-1 mode
Date: Mon, 25 Jun 2012 10:46:01 -0700	[thread overview]
Message-ID: <4FE8A3D9.3060400@zytor.com> (raw)
In-Reply-To: <20120625152142.GD17638@shiny>

On 06/25/2012 08:21 AM, Chris Mason wrote:
> Yes and no.  If you have 2 drives and you add one more, we can make it
> do all new chunks over 3 drives.  But, turning the existing double
> mirror chunks into a triple mirror requires a balance.
> 
> -chris

So trigger one.  This is the exact analogue to the resync pass that is
required in classic RAID after adding new media.

	-hpa


  reply	other threads:[~2012-06-25 17:46 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-20 16:27 Feature request: true RAID-1 mode H. Peter Anvin
2012-06-21  0:35 ` Marios Titas
2012-06-21  0:50   ` Chris Mason
2012-06-21  1:34     ` H. Peter Anvin
2012-06-25 15:21       ` Chris Mason
2012-06-25 17:46         ` H. Peter Anvin [this message]
2012-06-25 22:34           ` Gareth Pye
     [not found]           ` <CA+WRLO87LvTrRJRMNwYQ3SwmZWF7WzO_FDi1=jqt1kwX=YSnWQ@mail.gmail.com>
2012-06-25 22:37             ` H. Peter Anvin
2012-06-25 22:46               ` Gareth Pye
2012-06-25 22:54           ` Hugo Mills
2012-06-25 23:00             ` H. Peter Anvin
2012-07-02 15:59               ` H. Peter Anvin

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