pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  

help / color / mirror / Atom feed
From: Greg Smith <greg@2ndquadrant.com>
To: Scott Carey <scott@richrelevance.com>
Cc: Michael March <mmarch@gmail.com>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Completely un-tuned Postgresql benchmark results: SSD vs desktop HDD
Date: Thu, 12 Aug 2010 00:30:47 -0400
Message-ID: <4C6378F7.9040000@2ndquadrant.com> (raw)
In-Reply-To: <72E29316-5F4C-4A01-8924-5340DF2FAE65@richrelevance.com>
References: <AANLkTikXLYc32Jyr5Fb8VeVNt6R86mCcF+0CkTHALd8W@mail.gmail.com>
	<BAE01AAD-6C69-48C7-BD2E-77E463D49903@richrelevance.com>
	<AANLkTi=km+H+mZ=yyx0_HTFZ-yU2sh85D+p5cs+ZcUSF@mail.gmail.com>
	<A1640F99-A7C5-4F04-9A25-782C46BE7DAB@richrelevance.com>
	<4C617C80.9080509@2ndquadrant.com>
	<72E29316-5F4C-4A01-8924-5340DF2FAE65@richrelevance.com>

Scott Carey wrote:
> What is the likelihood that your RAID card fails, or that the battery that reported 'good health' only lasts 5 minutes and you lose data before power is restored?   What is the likelihood of human error?
>   

These are all things that happen sometimes, sure.  The problem with the 
cheap SSDs is that they happen downright often if you actually test for 
it.  If someone is aware of the risk and makes an informed decision, 
fine.  But most of the time I see articles like the one that started 
this thread that are oblivious to the issue, and that's really bad.

-- 
Greg Smith  2ndQuadrant US  Baltimore, MD
PostgreSQL Training, Services and Support
greg@2ndQuadrant.com   www.2ndQuadrant.us




view thread (37+ messages)  latest in thread

Message-ID: <4C6378F7.9040000@2ndquadrant.com>
Permalink:  ../4C6378F7.9040000@2ndquadrant.com/
Also on:    postgresql.org/message-id/4C6378F7.9040000@2ndquadrant.com

 · 

reply
Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: greg@2ndquadrant.com, scott@richrelevance.com, mmarch@gmail.com
  Subject: Re: Completely un-tuned Postgresql benchmark results: SSD vs desktop HDD
  In-Reply-To: <4C6378F7.9040000@2ndquadrant.com>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox