<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html lang="en-us" xml:lang="en-us">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="copyright" content="(C) Copyright IBM Corporation 2005" />
<meta name="DC.rights.owner" content="(C) Copyright IBM Corporation 2005" />
<meta name="security" content="public" />
<meta name="Robots" content="index,follow" />
<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
<meta name="DC.Type" content="reference" />
<meta name="DC.Title" content="Resource Interval Report - Disk Utilization Summary" />
<meta name="abstract" content="The Disk Utilization summary of the Resource interval report displays detailed disk information by time intervals." />
<meta name="description" content="The Disk Utilization summary of the Resource interval report displays detailed disk information by time intervals." />
<meta name="DC.Relation" scheme="URI" content="rzahxreportperftools.htm" />
<meta name="DC.Format" content="XHTML" />
<meta name="DC.Identifier" content="rzahxresourceex1" />
<meta name="DC.Language" content="en-us" />
<!-- All rights reserved. Licensed Materials Property of IBM -->
<!-- US Government Users Restricted Rights -->
<!-- Use, duplication or disclosure restricted by -->
<!-- GSA ADP Schedule Contract with IBM Corp. -->
<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
<link rel="stylesheet" type="text/css" href="./ic.css" />
<title>Resource Interval Report - Disk Utilization Summary</title>
</head>
<body id="rzahxresourceex1"><a name="rzahxresourceex1"><!-- --></a>
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
<h1 class="topictitle1">Resource Interval Report - Disk Utilization Summary</h1>
<div><p>The Disk Utilization summary of the Resource interval report displays
detailed disk information by time intervals.</p>
<div class="section"><p>Information is shown for all disk arms that are configured on
the system. Also, the disk arm with the highest utilization and the disk arm
with the highest average seek time for each time interval are shown. Consistent
disk arm utilization at or above the threshold value will affect system performance
and cause longer response times and/or less throughput. Changes to this section
of the report include:</p>
<img src="./delta.gif" alt="Start of change" /><ul><li>The values under the <samp class="codeph">Disk Space Used</samp> column are now expressed
in gigabytes.</li>
</ul><img src="./deltaend.gif" alt="End of change" />
</div>
<div class="example"><img src="./delta.gif" alt="Start of change" /><h4 class="sectiontitle">Example</h4><pre> Resource Interval Report 08/30/05 13:20:51
Disk Utilization Summary Page 1
Member . . . : PTFVTR54 Model/Serial . : 825/10-D0BFD Main storage . . : 3072.0 MB Started . . . : 08/05/05 09:00:01
Library . . : PTFVTR54 System name . . : MEXGPL08 Version/Release . : 5/4.0 Stopped . . . : 08/05/05 11:00:00
Partition ID : 001 Feature Code . : 7418-2473-7418
Average Average Average High High High Disk
Itv Average Reads Writes K Per Avg High Util Srv Srv Space
End I/O /Sec /Sec /Sec I/O Util Util Unit Time Unit Used (GB)
----- --------- -------- -------- ------- ----- ----- ---- ----- ---- -----------
09:05 29.2 3.5 25.7 6.6 .7 1.4 0003 .0012 0003 92.776
09:10 10.8 .8 9.9 7.7 .3 .6 0002 .0017 0002 92.782
09:15 10.6 .8 9.7 7.8 .2 .3 0003 .0008 0003 92.788
09:20 10.9 1.0 9.9 7.7 .0 .1 0002 .0004 0002 92.795
09:25 21.5 7.2 14.3 9.3 1.1 1.6 0001 .0022 0001 92.822
09:30 18.3 4.2 14.1 10.3 .5 .6 0001 .0014 0001 92.829
09:35 18.6 7.6 11.0 7.1 .6 1.0 0001 .0014 0001 92.857
09:40 36.5 8.7 27.7 6.9 1.3 1.6 0003 .0017 0003 92.811
09:45 19.6 3.4 16.1 7.3 .3 .8 0001 .0012 0001 92.818
09:50 10.6 1.1 9.4 7.8 .3 1.0 0001 .0033 0001 92.835
09:55 10.0 .8 9.2 8.0 .3 .8 0001 .0026 0001 92.841
10:00 53.8 14.8 38.9 8.4 1.6 2.1 0001 .0015 0001 92.892
10:05 37.0 16.4 20.5 10.3 1.8 2.1 0001 .0025 0001 92.903
10:10 224.0 138.7 85.2 8.9 14.1 14.8 0001 .0022 0001 92.913
10:15 66.4 22.1 44.2 11.9 1.5 3.0 0003 .0009 0003 92.974
10:20 166.5 33.0 133.4 7.8 2.8 4.3 0003 .0006 0003 92.980
10:25 161.9 41.5 120.3 9.2 3.3 5.1 0003 .0007 0003 92.957
10:30 24.8 8.7 16.0 10.4 1.3 1.5 0003 .0022 0001 93.018
10:35 13.9 4.0 9.9 8.6 .9 1.3 0003 .0028 0003 93.060
10:40 23.9 8.0 15.8 8.7 .7 1.3 0003 .0014 0003 93.075
10:45 14.1 3.4 10.7 8.3 .6 .8 0003 .0017 0003 92.988
10:50 43.8 12.4 31.3 7.4 .6 .8 0001 .0008 0001 92.982
10:55 29.9 2.8 27.1 8.4 .5 .8 0002 .0007 0002 93.008
11:00 31.0 4.3 26.7 5.8 .5 .8 0003 .0000 0003 92.999
--------- -------- -------- ------- -----
Average: 45.3 14.6 30.7 8.6 1.5
Itv End -- Interval end time (hour and minute)
Average Phys I/O /Sec -- Average number of physical I/O operations per second
Average Reads / Sec -- Average number of physical reads per second
Average Writes /Sec -- Average number of physical writes per second
Average K Per I/O -- Average number of kilobytes (1024) per I/O operation
Avg Util -- Average percent utilization of all disk arms
High Util -- Highest percent utilization for a disk arm
High Util Unit -- Disk arm with the highest utilization percent
High Srv Time -- Highest average service time in seconds
High Srv Unit -- Disk arm with the highest service time
Disk Space Used -- Total disk space used in Gigabytes (1024)
</pre>
<img src="./deltaend.gif" alt="End of change" /></div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzahxreportperftools.htm" title="Performance Tools reports provide information on data that has been collected over time. Use these reports to get additional information about the performance and use of system resources.">Performance Tools reports</a></div>
</div>
</div>
</body>
</html>