From: David Sterba <dsterba@suse.cz>
To: Christian Rohmann <crohmann@netcologne.de>
Cc: linux-btrfs@vger.kernel.org, gabriel@system.is
Subject: Re: [PATCH 2/3] btrfs: add balance filter for stripes
Date: Fri, 15 Jan 2016 18:40:07 +0100 [thread overview]
Message-ID: <20160115174007.GG4227@suse.cz> (raw)
In-Reply-To: <5697C69B.1000308@netcologne.de>
On Thu, Jan 14, 2016 at 05:02:35PM +0100, Christian Rohmann wrote:
>
>
> On 10/20/2015 07:13 PM, David Sterba wrote:
> > Balance block groups which have the given number of stripes, defined by
> > a range min..max. This is useful to selectively rebalance only chunks
> > that do not span enough devices, applies to RAID0/10/5/6.
>
> This sounds like an awesome improvement to re-balance a filesystem with
> newly added devices which don't have any data chunks yet. So in theory
> for RAID6 I would simple need to execute
>
> btrfs balance start -dstripes=0..$devicecount-1 /filesystem
>
>
> to have btrfs balance those chunks which are not spread across all
> devices yet?
Exactly.
next prev parent reply other threads:[~2016-01-15 17:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-20 17:13 [PATCH 0/3 v3] Balance filters: stripes, enhanced limit and usage David Sterba
2015-10-20 17:13 ` [PATCH 1/3] btrfs: extend balance filter limit to take minimum and maximum David Sterba
2015-10-20 17:13 ` [PATCH 2/3] btrfs: add balance filter for stripes David Sterba
2016-01-14 16:02 ` Christian Rohmann
2016-01-15 17:40 ` David Sterba [this message]
2015-10-20 17:13 ` [PATCH 3/3] btrfs: extend balance filter usage to take minimum and maximum David Sterba
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