From: Roman Mamedov <rm@romanrm.net>
To: Gerald Hopf <gerald.hopf@nv-systems.net>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: "-d single" for data blocks on a multiple devices doesn't work as it should
Date: Tue, 24 Jun 2014 17:02:36 +0600 [thread overview]
Message-ID: <20140624170236.28d5bfa9@natsu> (raw)
In-Reply-To: <53A955F8.8090101@nv-systems.net>
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On Tue, 24 Jun 2014 12:42:00 +0200
Gerald Hopf <gerald.hopf@nv-systems.net> wrote:
> The "-d single" allocator is useless (or broken?).
It's just not designed with your use case in mind. It operates on the level of
allocation extents (if I'm not mistaken), not of whole files.
If you want to join multiple devices with a per-file granularity (so that a
single file is wholely stored on one given device), check out the FUSE
filesystem called mhddfs; I wrote an article about it some time ago:
https://romanrm.net/mhddfs
--
With respect,
Roman
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next prev parent reply other threads:[~2014-06-24 11:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-24 10:42 "-d single" for data blocks on a multiple devices doesn't work as it should Gerald Hopf
2014-06-24 11:02 ` Roman Mamedov [this message]
2014-06-24 21:48 ` Gerald Hopf
2014-06-24 11:45 ` Duncan
2014-06-24 21:51 ` Gerald Hopf
2014-06-25 2:20 ` Austin S Hemmelgarn
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