From: Ulli Horlacher <framstag@rus.uni-stuttgart.de>
To: linux-btrfs@vger.kernel.org
Subject: mount option nodatacow for VMs on SSD?
Date: Fri, 25 Nov 2016 09:28:40 +0100 [thread overview]
Message-ID: <20161125082840.GA32711@rus.uni-stuttgart.de> (raw)
I have vmware and virtualbox VMs on btrfs SSD.
I read in
https://btrfs.wiki.kernel.org/index.php/SysadminGuide#When_To_Make_Subvolumes
certain types of data (databases, VM images and similar typically big
files that are randomly written internally) may require CoW to be
disabled for them. So for example such areas could be placed in a
subvolume, that is always mounted with the option "nodatacow".
Does this apply to SSDs, too?
--
Ullrich Horlacher Server und Virtualisierung
Rechenzentrum TIK
Universitaet Stuttgart E-Mail: horlacher@tik.uni-stuttgart.de
Allmandring 30a Tel: ++49-711-68565868
70569 Stuttgart (Germany) WWW: http://www.tik.uni-stuttgart.de/
REF:<20161125082840.GA32711@rus.uni-stuttgart.de>
next reply other threads:[~2016-11-25 8:55 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-25 8:28 Ulli Horlacher [this message]
2016-11-25 12:01 ` mount option nodatacow for VMs on SSD? Duncan
2016-11-25 12:25 ` Roman Mamedov
2016-11-26 10:27 ` Kai Krakow
2016-11-28 0:38 ` Ulli Horlacher
2016-11-28 2:56 ` Duncan
2016-11-28 9:49 ` [Not TLS] " Graham Cobb
2016-11-29 5:14 ` Duncan
2016-11-29 10:34 ` [Not TLS] " Niccolò Belli
2016-11-29 12:18 ` [Not TLS] " Austin S. Hemmelgarn
2016-11-28 8:20 ` Kai Krakow
2016-11-28 11:11 ` Niccolò Belli
2016-11-29 5:06 ` Duncan
2016-11-29 12:20 ` Austin S. Hemmelgarn
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