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

help / color / mirror / Atom feed

From: Michael Stone <mstone+postgres@mathom.us>
To: pgsql-performance@postgresql.org
Subject: Re: SAN vs Internal Disks
Date: Tue, 11 Sep 2007 17:09:00 -0400
Message-ID: <20070911210857.GQ1795@mathom.us> (raw)
In-Reply-To: <20070911205550.GA38801@decibel.org>
References: <a199704d0709060535q6fea139aq2e3863e685555b0d@mail.gmail.com>
	<dcc563d10709060925o6f11f632sbfbc2b64530ae80d@mail.gmail.com>
	<a199704d0709061003u71d536fbh9d71ed095dfe16b@mail.gmail.com>
	<Pine.GSO.4.64.0709062354040.28915@westnet.com>
	<20070907100446.GE1795@mathom.us>
	<20070907103341.GC20896@oppetid.no>
	<Pine.LNX.4.64.0709071400430.19737@asgard.lang.hm>
	<20070911205550.GA38801@decibel.org>

On Tue, Sep 11, 2007 at 03:55:51PM -0500, Decibel! wrote:
>Also, to reply to someone else's email... there is one big reason to use
>a SAN over direct storage: you can do HA that results in 0 data loss.
>Good SANs are engineered to be highly redundant, with multiple
>controllers, PSUs, etc, so that the odds of losing the SAN itself are
>very, very low. The same isn't true with DAS.

You can get DAS arrays with multiple controllers, PSUs, etc.  DAS != 
single disk.

Mike Stone

view thread (37+ messages)  latest in thread

Message-ID: <20070911210857.GQ1795@mathom.us>
Permalink:  ../20070911210857.GQ1795@mathom.us/
Also on:    postgresql.org/message-id/20070911210857.GQ1795@mathom.us

copy link · copy postgr.es

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: mstone+postgres@mathom.us
  Subject: Re: SAN vs Internal Disks
  In-Reply-To: <20070911210857.GQ1795@mathom.us>

* 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