[Gluster-users] ZFS with SSD ZIL vs XFS

Gandalf Corvotempesta gandalf.corvotempesta at gmail.com
Tue Oct 10 19:58:05 UTC 2017

Last time I've read about tiering in gluster, there wasn't any performance
gain with VM workload and more over doesn't speed up writes...

Il 10 ott 2017 9:27 PM, "Bartosz Zięba" <kontakt at avatat.pl> ha scritto:

> Hi,
> Have you thought about using an SSD as a GlusterFS hot tiers?
> Regards,
> Bartosz
> On 10.10.2017 19:59, Gandalf Corvotempesta wrote:
>> 2017-10-10 18:27 GMT+02:00 Jeff Darcy <jeff at pl.atyp.us>:
>>> Probably not.  If there is, it would probably favor XFS.  The developers
>>> at Red Hat use XFS almost exclusively.  We at Facebook have a mix, but
>>> XFS is (I think) the most common.  Whatever the developers use tends to
>>> become "the way local filesystems work" and code is written based on
>>> that profile, so even without intention that tends to get a bit of a
>>> boost.  To the extent that ZFS makes different tradeoffs - e.g. using
>>> lots more memory, very different disk access patterns - it's probably
>>> going to have a bit more of an "impedance mismatch" with the choices
>>> Gluster itself has made.
>> Ok, so XFS is the way to go :)
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