From: Christian Rohmann <crohmann@netcologne.de>
To: David Sterba <dsterba@suse.com>, linux-btrfs@vger.kernel.org
Cc: "Gabríel Arthúr Pétursson" <gabriel@system.is>
Subject: Re: [PATCH 2/3] btrfs: add balance filter for stripes
Date: Thu, 14 Jan 2016 17:02:35 +0100 [thread overview]
Message-ID: <5697C69B.1000308@netcologne.de> (raw)
In-Reply-To: <aa6771ad37b6cd5370bccebfe525bd654f0d8a30.1445360598.git.dsterba@suse.com>
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?
Regards
Christian
next prev parent reply other threads:[~2016-01-14 16:11 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 [this message]
2016-01-15 17:40 ` David Sterba
2015-10-20 17:13 ` [PATCH 3/3] btrfs: extend balance filter usage to take minimum and maximum David Sterba
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