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Date:      Fri, 11 Feb 2011 11:57:38 -0700
From:      Chad Perrin <>
To:        FreeBSD Mailing List <>
Subject:   Re: FreeBSD and SSD drives
Message-ID:  <20110211185738.GB45708@guilt.hydra>
In-Reply-To: <>
References:  <>

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On Fri, Feb 11, 2011 at 09:40:37AM +0000, Paul Macdonald wrote:
> I'd be interested to here peoples opinions on best uses for SSD, general=
> purpose applications such as databases , webservers etc will benefit=20
> obviously,
> but i'm also  curious as to disk intensive applications such as mailq's,=
> spamassassin etc?  (I presume here the lack of TRIM may degrade=20
> performance rapidly?)

Ignoring the TRIM issue for a moment . . .

You're probably best off saving SSD storage for cases where you have lots
of reads and little to no write activity, unless you enjoy buying new
SSDs a lot.  Actually, let's not ignore TRIM; the work-around for lack of
TRIM support on some drives is a "garbage collection" routine that
exacerbates the problem of having to replace your SSDs more often if you
do a lot of writes.

I guess I would only use SSDs on servers in the same cases where I would
let myself be talked into using MySQL -- cases where you just treat it
pretty much like a read-only data store, and do not have to (safely) add
or change data stored there most of the time.

Chad Perrin [ original content licensed OWL: ]

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