From: hubert depesz lubaczewski <depesz@gmail.com>
To: Luke Lonergan <llonergan@greenplum.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Huge Data sets, simple queries
Date: Sun, 29 Jan 2006 12:25:23 +0100
Message-ID: <9e4684ce0601290325p4f284c57ndeaae13e6ce58fd7@mail.gmail.com> (raw)
In-Reply-To: <C0001F60.1B354%llonergan@greenplum.com>
References: <007101c623a9$82207c10$0200a8c0@videobox>
<C0001F60.1B354%llonergan@greenplum.com>
On 1/28/06, Luke Lonergan <llonergan@greenplum.com> wrote:
> You should check your disk performance, I would
> expect you'll find it lacking, partly because you are running RAID10, but
> mostly because I expect you are using a hardware RAID adapter.
hmm .. do i understand correctly that you're suggesting that using
raid 10 and/or hardware raid adapter might hurt disc subsystem
performance? could you elaborate on the reasons, please? it's not that
i'm against the idea - i'm just curious as this is very
"against-common-sense". and i always found it interesting when
somebody states something that uncommon...
best regards
depesz
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: depesz@gmail.com, llonergan@greenplum.com
Subject: Re: Huge Data sets, simple queries
In-Reply-To: <9e4684ce0601290325p4f284c57ndeaae13e6ce58fd7@mail.gmail.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