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    <title>topic Slow backup performance in ESXi Discussions</title>
    <link>https://communities.vmware.com/t5/ESXi-Discussions/Slow-backup-performance/m-p/2226762#M216490</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi all&lt;/P&gt;&lt;P&gt;We've got several problems with VMware backup hotadd mode with Commvault&lt;/P&gt;&lt;P&gt;Backup performance is about less 60 Gb/min&lt;/P&gt;&lt;P&gt;In vmkerel.log we've found these entries&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;2016-05-04T10:01:24.612Z cpu17:32870)[bnx2x_alloc_rx_sge:734(vmnic0)]Can't alloc sge 2016-05-04T10:01:24.612Z cpu17:32870)[bnx2x_esx_init_rx_ring:1944(vmnic0)]was only able to allocate 0 rx sges 2016-05-04T10:01:24.612Z cpu17:32870)[bnx2x_esx_init_rx_ring:1946(vmnic0)]disabling TPA for queue[4] 2016-05-04T10:01:24.633Z cpu17:32870)[bnx2x_dynamic_alloc_rx_queue_single:789(vmnic0)]Could not start queue:4 2016-05-04T10:01:24.715Z cpu31:32870)[bnx2x_alloc_rx_sge:734(vmnic3)]Can't alloc sge 2016-05-04T10:01:24.715Z cpu31:32870)[bnx2x_esx_init_rx_ring:1944(vmnic3)]was only able to allocate 0 rx sges 2016-05-04T10:01:24.715Z cpu31:32870)[bnx2x_esx_init_rx_ring:1946(vmnic3)]disabling TPA for queue[2] 2016-05-04T10:01:24.736Z cpu27:32870)[bnx2x_dynamic_alloc_rx_queue_single:789(vmnic3)]Could not start queue:2 2016-05-04T10:01:29.614Z cpu24:32870)[bnx2x_alloc_rx_sge:734(vmnic0)]Can't alloc sge 2016-05-04T10:01:29.614Z cpu24:32870)[bnx2x_esx_init_rx_ring:1944(vmnic0)]was only able to allocate 0 rx sges 2016-05-04T10:01:29.614Z cpu24:32870)[bnx2x_esx_init_rx_ring:1946(vmnic0)]disabling TPA for queue[4] 2016-05-04T10:01:29.635Z cpu22:32870)[bnx2x_dynamic_alloc_rx_queue_single:789(vmnic0)]Could not start queue:4 2016-05-04T10:01:29.718Z cpu19:32870)[bnx2x_alloc_rx_sge:734(vmnic3)]Can't alloc sge 2016-05-04T10:01:29.718Z cpu19:32870)[bnx2x_esx_init_rx_ring:1944(vmnic3)]was only able to allocate 0 rx sges 2016-05-04T10:01:29.718Z cpu19:32870)[bnx2x_esx_init_rx_ring:1946(vmnic3)]disabling TPA for queue[2]&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;If we use windows backup from guest VM, backup runs about 120MB/s&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Any suggestion?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thanks&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Matteo&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Wed, 04 May 2016 11:06:19 GMT</pubDate>
    <dc:creator>mancio</dc:creator>
    <dc:date>2016-05-04T11:06:19Z</dc:date>
    <item>
      <title>Slow backup performance</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Slow-backup-performance/m-p/2226762#M216490</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi all&lt;/P&gt;&lt;P&gt;We've got several problems with VMware backup hotadd mode with Commvault&lt;/P&gt;&lt;P&gt;Backup performance is about less 60 Gb/min&lt;/P&gt;&lt;P&gt;In vmkerel.log we've found these entries&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;2016-05-04T10:01:24.612Z cpu17:32870)[bnx2x_alloc_rx_sge:734(vmnic0)]Can't alloc sge 2016-05-04T10:01:24.612Z cpu17:32870)[bnx2x_esx_init_rx_ring:1944(vmnic0)]was only able to allocate 0 rx sges 2016-05-04T10:01:24.612Z cpu17:32870)[bnx2x_esx_init_rx_ring:1946(vmnic0)]disabling TPA for queue[4] 2016-05-04T10:01:24.633Z cpu17:32870)[bnx2x_dynamic_alloc_rx_queue_single:789(vmnic0)]Could not start queue:4 2016-05-04T10:01:24.715Z cpu31:32870)[bnx2x_alloc_rx_sge:734(vmnic3)]Can't alloc sge 2016-05-04T10:01:24.715Z cpu31:32870)[bnx2x_esx_init_rx_ring:1944(vmnic3)]was only able to allocate 0 rx sges 2016-05-04T10:01:24.715Z cpu31:32870)[bnx2x_esx_init_rx_ring:1946(vmnic3)]disabling TPA for queue[2] 2016-05-04T10:01:24.736Z cpu27:32870)[bnx2x_dynamic_alloc_rx_queue_single:789(vmnic3)]Could not start queue:2 2016-05-04T10:01:29.614Z cpu24:32870)[bnx2x_alloc_rx_sge:734(vmnic0)]Can't alloc sge 2016-05-04T10:01:29.614Z cpu24:32870)[bnx2x_esx_init_rx_ring:1944(vmnic0)]was only able to allocate 0 rx sges 2016-05-04T10:01:29.614Z cpu24:32870)[bnx2x_esx_init_rx_ring:1946(vmnic0)]disabling TPA for queue[4] 2016-05-04T10:01:29.635Z cpu22:32870)[bnx2x_dynamic_alloc_rx_queue_single:789(vmnic0)]Could not start queue:4 2016-05-04T10:01:29.718Z cpu19:32870)[bnx2x_alloc_rx_sge:734(vmnic3)]Can't alloc sge 2016-05-04T10:01:29.718Z cpu19:32870)[bnx2x_esx_init_rx_ring:1944(vmnic3)]was only able to allocate 0 rx sges 2016-05-04T10:01:29.718Z cpu19:32870)[bnx2x_esx_init_rx_ring:1946(vmnic3)]disabling TPA for queue[2]&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;If we use windows backup from guest VM, backup runs about 120MB/s&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Any suggestion?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thanks&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Matteo&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 04 May 2016 11:06:19 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Slow-backup-performance/m-p/2226762#M216490</guid>
      <dc:creator>mancio</dc:creator>
      <dc:date>2016-05-04T11:06:19Z</dc:date>
    </item>
    <item>
      <title>Re: Slow backup performance</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Slow-backup-performance/m-p/2226763#M216491</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;A few quick questions... &lt;/P&gt;&lt;P&gt;&lt;SPAN style="font-size: 10pt; line-height: 1.5em;"&gt;From where do you get these numbers? Are&lt;/SPAN&gt;&lt;SPAN style="font-size: 10pt; line-height: 1.5em;"&gt; you using deduplication with CommVault for this backup job? What Commvault version and SP level are you running?&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;/Rubeck&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 04 May 2016 12:19:47 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Slow-backup-performance/m-p/2226763#M216491</guid>
      <dc:creator>Rubeck</dc:creator>
      <dc:date>2016-05-04T12:19:47Z</dc:date>
    </item>
    <item>
      <title>Re: Slow backup performance</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Slow-backup-performance/m-p/2226764#M216492</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;check this &lt;A href="https://communities.vmware.com/message/2574201"&gt;Log spew&lt;/A&gt;, there is mentioned new bnx2x driver, which may fix the issue.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 28 Jun 2016 13:48:56 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Slow-backup-performance/m-p/2226764#M216492</guid>
      <dc:creator>ivanerben</dc:creator>
      <dc:date>2016-06-28T13:48:56Z</dc:date>
    </item>
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