From: Eric Sandeen <sandeen@sandeen.net>
To: xfs@oss.sgi.com
Subject: Re: hdd + ssd
Date: Thu, 22 Oct 2015 13:27:02 -0500 [thread overview]
Message-ID: <56292A76.8090600@sandeen.net> (raw)
In-Reply-To: <20151022202324.5f00807f@linux>
On 10/22/15 1:23 PM, krautus@kr916.org wrote:
> Hello I'm trying to understand why and how to add one or more SSD (as a cache drive / keeping xfs log)
> to a traditional spinning xfs storage volume.
> I mean: which data will go to the ssd ? Inodes and dentries will go to the ssd ?
> Will the _read_ performance increase ?
You might want to look into something like dm-cache
https://en.wikipedia.org/wiki/Dm-cache
(TBH, I've not used it before, so grains of salt apply for your usecase).
Putting the log on an ssd is not likely to be the solution you want;
it certainly won't speed up reads.
-Eric
> In general I'm looking to increase (cache) the reading performance of folders with a lot of small files (emails),
> for email servers.
>
> Feel free to let me rtfm :)
> I'd gladly study the documentation / articles / benchmarks but my google-fu isn't in best shape.
>
> Thank you,
> Mike
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> xfs@oss.sgi.com
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next prev parent reply other threads:[~2015-10-22 18:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-22 18:23 hdd + ssd krautus
2015-10-22 18:27 ` Eric Sandeen [this message]
2015-10-23 11:48 ` Emmanuel Florac
2015-10-23 21:34 ` Stefan Ring
2015-10-24 5:38 ` krautus
2015-11-02 12:05 ` Emmanuel Florac
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