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    <title>topic Disk reads performance in ESXi Discussions</title>
    <link>https://communities.vmware.com/t5/ESXi-Discussions/Disk-reads-performance/m-p/901137#M73720</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;I have 4 esxi on Hp servers, with HP A5800 switchces and 2 Lefthand P4500G2 storages with raid5 + 10.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;On virtual machine I have this values of bench.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;hdparm -tT /dev/sda&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;/dev/sda:&lt;BR /&gt; Timing cached reads:&amp;nbsp;&amp;nbsp; 4702 MB in&amp;nbsp; 2.00 seconds = 2352.58 MB/sec&lt;BR /&gt; Timing buffered disk reads:&amp;nbsp; 132 MB in&amp;nbsp; 3.15 seconds =&amp;nbsp; 41.92 MB/sec&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;What do you thing it is ok? Im thinking that TCR can be faster.. no?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thank you and share your hdparm test:)&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Pavel&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Mon, 21 Jan 2013 21:41:04 GMT</pubDate>
    <dc:creator>Seonet</dc:creator>
    <dc:date>2013-01-21T21:41:04Z</dc:date>
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      <title>Disk reads performance</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Disk-reads-performance/m-p/901137#M73720</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;I have 4 esxi on Hp servers, with HP A5800 switchces and 2 Lefthand P4500G2 storages with raid5 + 10.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;On virtual machine I have this values of bench.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;hdparm -tT /dev/sda&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;/dev/sda:&lt;BR /&gt; Timing cached reads:&amp;nbsp;&amp;nbsp; 4702 MB in&amp;nbsp; 2.00 seconds = 2352.58 MB/sec&lt;BR /&gt; Timing buffered disk reads:&amp;nbsp; 132 MB in&amp;nbsp; 3.15 seconds =&amp;nbsp; 41.92 MB/sec&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;What do you thing it is ok? Im thinking that TCR can be faster.. no?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thank you and share your hdparm test:)&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Pavel&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 21 Jan 2013 21:41:04 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Disk-reads-performance/m-p/901137#M73720</guid>
      <dc:creator>Seonet</dc:creator>
      <dc:date>2013-01-21T21:41:04Z</dc:date>
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