From: Chris Browne <cbbrowne@acm.org>
To: pgsql-performance@postgresql.org
Subject: Re: Testing Sandforce SSD
Date: Tue, 03 Aug 2010 13:04:46 -0400
Message-ID: <87k4o71vbl.fsf@cbbrowne.afilias-int.info> (raw)
References: <4C4A9452.9070100@gmail.com>
<4C4B1F84.5030306@2ndquadrant.com>
<4C4B4B41.7000800@2ndquadrant.com>
<1280005769.9866.69.camel@jd-desktop.unknown.charter.com>
jd@commandprompt.com ("Joshua D. Drake") writes:
> On Sat, 2010-07-24 at 16:21 -0400, Greg Smith wrote:
>> Greg Smith wrote:
>> > Note that not all of the Sandforce drives include a capacitor; I hope
>> > you got one that does! I wasn't aware any of the SF drives with a
>> > capacitor on them were even shipping yet, all of the ones I'd seen
>> > were the chipset that doesn't include one still. Haven't checked in a
>> > few weeks though.
>>
>> Answer my own question here: the drive Yeb got was the brand spanking
>> new OCZ Vertex 2 Pro, selling for $649 at Newegg for example:
>> http://www.newegg.com/Product/Product.aspx?Item=N82E16820227535 and with
>> the supercacitor listed right in the main production specifications
>> there. This is officially the first inexpensive (relatively) SSD with a
>> battery-backed write cache built into it. If Yeb's test results prove
>> it works as it's supposed to under PostgreSQL, I'll be happy to finally
>> have a moderately priced SSD I can recommend to people for database
>> use. And I fear I'll be out of excuses to avoid buying one as a toy for
>> my home system.
>
> That is quite the toy. I can get 4 SATA-II with RAID Controller, with
> battery backed cache, for the same price or less :P
Sure, but it:
- Fits into a single slot
- Is quiet
- Consumes little power
- Generates little heat
- Is likely to be about as quick as the 4-drive array
It doesn't have the extra 4TB of storage, but if you're building big-ish
databases, metrics have to change anyways.
This is a pretty slick answer for the small OLTP server.
--
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To: pgsql-performance@postgresql.org
Cc: cbbrowne@acm.org
Subject: Re: Testing Sandforce SSD
In-Reply-To: <87k4o71vbl.fsf@cbbrowne.afilias-int.info>
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