From: Wang Yugui <wangyugui@e16-tech.com>
To: linux-xfs@vger.kernel.org
Subject: questions about hybird xfs wih ssd/hdd by realtime subvol
Date: Mon, 29 Aug 2022 10:26:20 +0800 [thread overview]
Message-ID: <20220829102619.AE3B.409509F4@e16-tech.com> (raw)
Hi,
I saw some info about hybird xfs wih ssd/hdd by realtime subvol.
Hybrid XFS―Using SSDs to Supercharge HDDs at Facebook
https://www.usenix.org/conference/srecon19asia/presentation/shamasunder
There are some questions about how to control the data to save into
normal vol or realtime subvol firstly.
1, man xfsctl
here is XFS_XFLAG_REALTIME in man xfsctl of xfsprogs 5.0 ,
but there is no XFS_XFLAG_REALTIME in xfsprogs 5.14/5.19.
xfsctl(XFS_XFLAG_REALTIME) will be removed in the further?
2, Is there some tool to do xfsctl(XFS_XFLAG_REALTIME)?
3, we build a xfs filesystem with 1G device and 1G rtdev device. and
then we can save 2G data into this xfs filesystem.
Is there any tool/kernel option/kernel patch to control the data to save
into normal vol or realtime subvol firstly?
Best Regards
Wang Yugui (wangyugui@e16-tech.com)
2022/08/29
next reply other threads:[~2022-08-29 2:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cra8LsdEma_cTwegy_oY4sLK9oYZOVv-VzyNw2y5Azvj_cPt5Fx3AyINvXKkQFhNXwB6-xMP4wVI67KS0eru1w==@protonmail.internalid>
2022-08-29 2:26 ` Wang Yugui [this message]
2022-08-29 8:24 ` questions about hybird xfs wih ssd/hdd by realtime subvol Carlos Maiolino
2022-08-30 0:57 ` Wang Yugui
2022-08-30 2:28 ` Darrick J. Wong
2022-08-31 0:50 ` Wang Yugui
2022-08-31 1:20 ` Darrick J. Wong
2022-08-29 22:10 ` Dave Chinner
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