Received: from maia.hub.org (maia-3.hub.org [200.46.204.243])
	by mail.postgresql.org (Postfix) with ESMTP id 1F9A2B5DC26
	for <pgsql-performance-postgresql.org@mail.postgresql.org>;
	Mon, 22 Aug 2011 13:53:11 -0300 (ADT)
Received: from mail.postgresql.org ([200.46.204.86])
	by maia.hub.org (mx1.hub.org [200.46.204.243]) (amavisd-maia,
	port 10024) with ESMTP id 57077-07
	for <pgsql-performance-postgresql.org@mail.postgresql.org>;
	Mon, 22 Aug 2011 16:53:04 +0000 (UTC)
X-Greylist: from auto-whitelisted by SQLgrey-1.7.6
Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.17.10])
	by mail.postgresql.org (Postfix) with ESMTP id 0DE64B5DC23
	for <pgsql-performance@postgresql.org>;
	Mon, 22 Aug 2011 13:53:04 -0300 (ADT)
Received: from [192.168.1.7] (mail.highperformancepostgresql.com
	[71.179.240.8])
	by mrelayeu.kundenserver.de (node=mrbap1) with ESMTP (Nemesis)
	id 0MVJxm-1QlDBj1YjO-00YMiV; Mon, 22 Aug 2011 18:53:02 +0200
Message-ID: <4E52896C.1030202@2ndQuadrant.com>
Date: Mon, 22 Aug 2011 12:53:00 -0400
From: Greg Smith <greg@2ndQuadrant.com>
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US;
	rv:1.9.1.16) Gecko/20110702 Icedove/3.0.11
MIME-Version: 1.0
To: Midge Brown <midgems@sbcglobal.net>
CC: pgsql-performance@postgresql.org
Subject: Re: settings input for upgrade
References: <F0ACDCA889994361A34F7459B11094F0@BERNICE>
	<4E515A69.6050709@2ndQuadrant.com>
	<2DF9D6EED638438A995A442C05D54688@BERNICE>
In-Reply-To: <2DF9D6EED638438A995A442C05D54688@BERNICE>
Content-Type: multipart/alternative;
	boundary="------------030203020608070305090407"
X-Provags-ID: V02:K0:VijGD1Pbia2pRXGME/i+ofT5LaI1uvEPirpGhbjXZB0
	fwqQYoA4Rj86lftmbZq7OLcv5CuO0jqIbK9tCEsoVVJShP9QYm
	ClBMcCOzqnvl2MQFnzK2XQoTowS12B2YeCvgDBiJ57tvDEvRxu
	XR487znmQ5IF54NVX+W+YT6g9ey7VLTW5COJmpiIoEMn2u4tn+
	TwQRME2TDouSZ2W8u4soFVt/GFsfMpjtfv5cqwpL/U=
X-Virus-Scanned: Maia Mailguard 1.0.1
X-Spam-Status: No, hits=-1.899 tagged_above=-10 required=5
	tests=BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001
X-Spam-Level: 
X-Archive-Number: 201108/247
X-Sequence-Number: 44694

This is a multi-part message in MIME format.
--------------030203020608070305090407
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

On 08/22/2011 12:48 PM, Midge Brown wrote:
> I was pushed to put the new version into production over the weekend, 
> which at least may provide me with some accurate feedback, and so will 
> see what happens for a bit before addressing the disk/drive layout.

The good news is that deploying onto the split up configuration will 
give you lots of data to collect about just how the load is split up 
over the various parts of the database.  You can just monitor which 
drives the I/O goes to.  If there are some that are really underused,  
and can arrange downtime and disk space to merge them together in the 
future, that may be an option for improving performance one day.

-- 
Greg Smith   2ndQuadrant US    greg@2ndQuadrant.com   Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support  www.2ndQuadrant.us


--------------030203020608070305090407
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta content="text/html; charset=ISO-8859-1"
 http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
On 08/22/2011 12:48 PM, Midge Brown wrote:
<blockquote cite="mid:2DF9D6EED638438A995A442C05D54688@BERNICE"
 type="cite">
  <div>&nbsp;</div>
  <font face="Courier" size="2">I was pushed to put the new version
into production over the weekend, which at least may provide me
with&nbsp;some accurate feedback, and so will see what happens&nbsp;for a bit
before addressing the disk/drive layout.</font></blockquote>
<br>
The good news is that deploying onto the split up configuration will
give you lots of data to collect about just how the load is split up
over the various parts of the database.&nbsp; You can just monitor which
drives the I/O goes to.&nbsp; If there are some that are really underused,&nbsp;
and can arrange downtime and disk space to merge them together in the
future, that may be an option for improving performance one day.<br>
<br>
<pre class="moz-signature" cols="72">-- 
Greg Smith   2ndQuadrant US    <a class="moz-txt-link-abbreviated" href="mailto:greg@2ndQuadrant.com">greg@2ndQuadrant.com</a>   Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support  <a class="moz-txt-link-abbreviated" href="http://www.2ndQuadrant.us">www.2ndQuadrant.us</a>
</pre>
</body>
</html>

--------------030203020608070305090407--