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    <title>topic Re: 4 paths for iSCSI in ESXi Discussions</title>
    <link>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223891#M216139</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;We have LACP setting on nodes - with two switchces in bond. What is better? LACP vs ALB? Thanks again &lt;img id="smileyhappy" class="emoticon emoticon-smileyhappy" src="https://communities.vmware.com/i/smilies/16x16_smiley-happy.png" alt="Smiley Happy" title="Smiley Happy" /&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Mon, 10 Nov 2014 21:38:35 GMT</pubDate>
    <dc:creator>Seonet</dc:creator>
    <dc:date>2014-11-10T21:38:35Z</dc:date>
    <item>
      <title>4 paths for iSCSI</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223887#M216135</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;now I have 2 path - 1gbps to SAN switch. (From switch to storages are 10gbps). My question is&amp;nbsp; - is it possible add 2 NIC for SAN and have 4 NICs, so 4 paths, from esxi to SAN? Can be it in round robin setting? We have many LUNs, so we would like to increase performance due to connection limit per LUN.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;What you think?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thank you!&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Pavel&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; &lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 10 Nov 2014 18:11:56 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223887#M216135</guid>
      <dc:creator>Seonet</dc:creator>
      <dc:date>2014-11-10T18:11:56Z</dc:date>
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    <item>
      <title>Re: 4 paths for iSCSI</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223888#M216136</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Whether Round-Robin is supported depends on your Storage System. Adding two more NICs for SW iSCSI to the ESXi hosts should work fine. Just remember the supported maximum of 8 paths per LUN for iSCSI (see &lt;A href="http://www.vmware.com/pdf/vsphere5/r55/vsphere-55-configuration-maximums.pdf" title="http://www.vmware.com/pdf/vsphere5/r55/vsphere-55-configuration-maximums.pdf"&gt;http://www.vmware.com/pdf/vsphere5/r55/vsphere-55-configuration-maximums.pdf&lt;/A&gt;).&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;André&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 10 Nov 2014 18:55:38 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223888#M216136</guid>
      <dc:creator>a_p_</dc:creator>
      <dc:date>2014-11-10T18:55:38Z</dc:date>
    </item>
    <item>
      <title>Re: 4 paths for iSCSI</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223889#M216137</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;André, thank you.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;I'm reading some best-practs. now. Here:&amp;nbsp; I read this: &lt;A href="http://www.vmware.com/files/pdf/techpaper/vmw-vsphere-p4000-lefthand-san-solutions.pdf" title="http://www.vmware.com/files/pdf/techpaper/vmw-vsphere-p4000-lefthand-san-solutions.pdf"&gt;http://www.vmware.com/files/pdf/techpaper/vmw-vsphere-p4000-lefthand-san-solutions.pdf&lt;/A&gt; &lt;EM&gt;(p8)&lt;/EM&gt;&lt;/P&gt;&lt;BLOCKQUOTE&gt;
&lt;P&gt;It is important to note that native vSphere 5 multi-pathing should not be used with HP P4000 Multi-Site &lt;/P&gt;
&lt;P&gt;SAN configurations that utilize more than one subnet and iSCSI Virtual IP.&lt;/P&gt;
&lt;/BLOCKQUOTE&gt;&lt;P&gt;So - if I understand well this, every NIC must have IP from other subnet? And on HP Storevirtual I must add more virtual IPs?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thank you very much!&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, 10 Nov 2014 19:54:35 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223889#M216137</guid>
      <dc:creator>Seonet</dc:creator>
      <dc:date>2014-11-10T19:54:35Z</dc:date>
    </item>
    <item>
      <title>Re: 4 paths for iSCSI</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223890#M216138</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;No, all the Lefthand/P4xxx nodes as well as the FOM and the VIP should be in the same subnet. I usually set this system up with Jumbo Frames (MTU 9000), ALB on the storage side and a Round Robin path policy for the LUNs on the ESXi host.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;André&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 10 Nov 2014 21:24:35 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223890#M216138</guid>
      <dc:creator>a_p_</dc:creator>
      <dc:date>2014-11-10T21:24:35Z</dc:date>
    </item>
    <item>
      <title>Re: 4 paths for iSCSI</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223891#M216139</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;We have LACP setting on nodes - with two switchces in bond. What is better? LACP vs ALB? Thanks again &lt;img id="smileyhappy" class="emoticon emoticon-smileyhappy" src="https://communities.vmware.com/i/smilies/16x16_smiley-happy.png" alt="Smiley Happy" title="Smiley Happy" /&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 10 Nov 2014 21:38:35 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223891#M216139</guid>
      <dc:creator>Seonet</dc:creator>
      <dc:date>2014-11-10T21:38:35Z</dc:date>
    </item>
    <item>
      <title>Re: 4 paths for iSCSI</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223892#M216140</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I can't really tell you what's better. If configured properly both configurations should work well. I'm not a dedicated network guy, and usually create Multi-Site clusters (2 sites) with 2 switches on each site, with a Mesh configuration for the switches to have all links active and to avoid blocked paths due to Spanning-Tree.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;André&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 10 Nov 2014 21:54:18 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223892#M216140</guid>
      <dc:creator>a_p_</dc:creator>
      <dc:date>2014-11-10T21:54:18Z</dc:date>
    </item>
    <item>
      <title>Re: 4 paths for iSCSI</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223893#M216141</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I would stay away from lag/lacp&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Blatant Stop Message from a respected vcdx-nv:&lt;/P&gt;&lt;P&gt;&lt;A href="http://wahlnetwork.com/2013/03/05/stop-using-port-channels-to-vsphere-hosts/"&gt;http://wahlnetwork.com/2013/03/05/stop-using-port-channels-to-vsphere-hosts/&lt;/A&gt; &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Theory:&lt;/P&gt;&lt;P&gt;&lt;A href="http://wahlnetwork.com/2014/03/25/avoid-lacp-iscsi-port-binding-multi-nic-vmotion/"&gt;http://wahlnetwork.com/2014/03/25/avoid-lacp-iscsi-port-binding-multi-nic-vmotion/&lt;/A&gt; &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Blog That I model my iscsi setups by”&lt;/P&gt;&lt;P&gt;&lt;A href="http://blogs.vmware.com/vsphere/2011/08/vsphere-50-storage-features-part-12-iscsi-multipathing-enhancements.html"&gt;http://blogs.vmware.com/vsphere/2011/08/vsphere-50-storage-features-part-12-iscsi-multipathing-enhancements.html&lt;/A&gt; &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Best practices doc:&lt;/P&gt;&lt;P&gt;&lt;A href="http://www.vmware.com/files/pdf/iSCSI_design_deploy.pdf"&gt;http://www.vmware.com/files/pdf/iSCSI_design_deploy.pdf&lt;/A&gt; &lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 13 Nov 2014 05:08:46 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/4-paths-for-iSCSI/m-p/2223893#M216141</guid>
      <dc:creator>antonmajor</dc:creator>
      <dc:date>2014-11-13T05:08:46Z</dc:date>
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