From: Kai Krakow <hurikhan77@gmail.com>
To: linux-btrfs@vger.kernel.org
Subject: Re: Is it possible to have metadata-only device with no data?
Date: Sun, 5 Feb 2017 23:27:21 +0100 [thread overview]
Message-ID: <20170205232721.165e96f3@jupiter.sol.kaishome.de> (raw)
In-Reply-To: 14453691486330921@web21h.yandex.ru
Am Mon, 06 Feb 2017 00:42:01 +0300
schrieb Alexander Tomokhov <alexoundos@ya.ru>:
> Is it possible, having two drives to do raid1 for metadata but keep
> data on a single drive only? --
No, but you could take a look into bcache which should get you
something similar if used in write-around mode.
Random access will become cached in bcache, which should most of the
time be metadata, plus of course randomly accessed data from HDD. If
you reduce the sequential cutoff trigger in bcache, it should cache
mostly metadata only.
--
Regards,
Kai
Replies to list-only preferred.
next prev parent reply other threads:[~2017-02-05 22:27 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-05 21:42 Is it possible to have metadata-only device with no data? Alexander Tomokhov
2017-02-05 21:55 ` Hans van Kranenburg
2017-02-05 23:54 ` Roman Mamedov
2017-02-14 1:20 ` Alexander Tomokhov
2017-02-06 4:26 ` Duncan
2017-02-06 12:37 ` Austin S. Hemmelgarn
2017-02-05 22:27 ` Kai Krakow [this message]
2017-02-14 1:22 ` Alexander Tomokhov
2017-02-06 18:39 ` Omar Sandoval
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