pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Florian Weimer <fw@deneb.enyo.de>
To: david@lang.hm
Cc: Fernando Hevia <fhevia@ip-tel.com.ar>
Cc: 'Mark Mielke' <mark@mark.mielke.cc>
Cc: 'pgsql-performance' <pgsql-performance@postgresql.org>
Subject: Re: With 4 disks should I go for RAID 5 or RAID 10
Date: Wed, 26 Dec 2007 21:55:38 +0100
Message-ID: <87zlvxnpkl.fsf@mid.deneb.enyo.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0712261317320.11785@asgard.lang.hm>
References: <0f8201c847f6$08e15090$8f01010a@iptel.com.ar>
	<Pine.LNX.4.64.0712261317320.11785@asgard.lang.hm>

> seek/read/calculate/seek/write since the drive moves on after the
> read), when you read you must read _all_ drives in the set to check
> the data integrity.

I don't know of any RAID implementation that performs consistency
checking on each read operation. 8-(



view thread (37+ messages)  latest in thread

Message-ID: <87zlvxnpkl.fsf@mid.deneb.enyo.de>
Permalink:  ../87zlvxnpkl.fsf@mid.deneb.enyo.de/
Also on:    postgresql.org/message-id/87zlvxnpkl.fsf@mid.deneb.enyo.de

 · 

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: fw@deneb.enyo.de, david@lang.hm, fhevia@ip-tel.com.ar, mark@mark.mielke.cc
  Subject: Re: With 4 disks should I go for RAID 5 or RAID 10
  In-Reply-To: <87zlvxnpkl.fsf@mid.deneb.enyo.de>

* 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