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    <title>topic Re: Main difference between vSAN ESA and OSA in VMware vSAN Discussions</title>
    <link>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2945523#M14759</link>
    <description>&lt;P&gt;&lt;STRONG&gt;&lt;a href="https://communities.vmware.com/t5/user/viewprofilepage/user-id/275378"&gt;@baber&lt;/a&gt;&amp;nbsp;&lt;/STRONG&gt;&lt;/P&gt;&lt;P&gt;1. No - 10GBps should suffice fine for the vast majority of OSA workloads, the supported network minimums for OSA remain unchanged.&lt;BR /&gt;In vSAN OSA, typically only larger, busier and or/using things like R5/R6 (or R5+R5/R6+R6 in stretched) clusters would be exhausting the resources of 10Gbps networks.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;2. This is the supported network minimum - I don't think there is any hard-check that prevents using lower than this but if you choose to run on an unsupported configuration then you are taking responsibility for supporting this yourself when/if things go wrong.&lt;/P&gt;</description>
    <pubDate>Mon, 26 Dec 2022 23:06:08 GMT</pubDate>
    <dc:creator>TheBobkin</dc:creator>
    <dc:date>2022-12-26T23:06:08Z</dc:date>
    <item>
      <title>Main difference between vSAN ESA and OSA</title>
      <link>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2944769#M14734</link>
      <description>&lt;P&gt;&amp;nbsp;As I know new version of vSAN with the name of ESA has released :&lt;/P&gt;&lt;P&gt;1- Does it mean on vSphere8 when we want to run vSAN we have 2 options ?&amp;nbsp; 1- vSAN ESA&amp;nbsp; and vSAN OSA&amp;nbsp; ?&lt;/P&gt;&lt;P&gt;2- Are the main difference between ESA and OSA : on ESA we don't use cache tier&amp;nbsp;&lt;/P&gt;&lt;P&gt;3- As I find out we cannot run vSAN ESA for example on 4 DL580 G10 that I have in my site althought we can just run it on ready nodes such as VXRail . Is that correct ?&lt;/P&gt;</description>
      <pubDate>Tue, 20 Dec 2022 14:55:26 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2944769#M14734</guid>
      <dc:creator>baber</dc:creator>
      <dc:date>2022-12-20T14:55:26Z</dc:date>
    </item>
    <item>
      <title>Re: Main difference between vSAN ESA and OSA</title>
      <link>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2944780#M14735</link>
      <description>&lt;OL&gt;
&lt;LI&gt;Yes, you can have either OSA or ESA&lt;/LI&gt;
&lt;LI&gt;There are several differences. Please see &lt;A href="https://core.vmware.com/vsan-esa" target="_blank"&gt;https://core.vmware.com/vsan-esa&lt;/A&gt; for details, and comparison.&lt;/LI&gt;
&lt;LI&gt;vSAN ESA has strict hardware requirements, which currently require vSAN Ready nodes etc. to be fully supported. It may run on other hardware too, but you will likely not take the risk in a prod environment.&lt;/LI&gt;
&lt;/OL&gt;
&lt;P&gt;André&lt;/P&gt;</description>
      <pubDate>Tue, 20 Dec 2022 15:52:14 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2944780#M14735</guid>
      <dc:creator>a_p_</dc:creator>
      <dc:date>2022-12-20T15:52:14Z</dc:date>
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      <title>Re: Main difference between vSAN ESA and OSA</title>
      <link>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2944784#M14736</link>
      <description>&lt;P&gt;&lt;a href="https://communities.vmware.com/t5/user/viewprofilepage/user-id/173652"&gt;@a_p_&lt;/a&gt;&amp;nbsp;has already outlined the answers very clearly. Just adding couple of useful links to determine the&amp;nbsp;&lt;SPAN&gt;sample server configurations and explore what can/cannot be changed in a vSAN Ready Node.&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;A href="https://www.vmware.com/resources/compatibility/vsanesa_profile.php" target="_blank"&gt;https://www.vmware.com/resources/compatibility/vsanesa_profile.php&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&lt;A href="https://kb.vmware.com/s/article/52084" target="_blank"&gt;https://kb.vmware.com/s/article/52084&lt;/A&gt;&lt;/P&gt;</description>
      <pubDate>Tue, 20 Dec 2022 16:10:34 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2944784#M14736</guid>
      <dc:creator>Shen88</dc:creator>
      <dc:date>2022-12-20T16:10:34Z</dc:date>
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    <item>
      <title>Re: Main difference between vSAN ESA and OSA</title>
      <link>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2944789#M14737</link>
      <description>&lt;P&gt;Thanks .but about follow table :&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;TABLE width="387"&gt;&lt;TBODY&gt;&lt;TR&gt;&lt;TD width="323"&gt;Description&lt;/TD&gt;&lt;TD width="64"&gt;vSAN-ESA-AF-2&lt;/TD&gt;&lt;/TR&gt;&lt;TR&gt;&lt;TD width="323"&gt;Node Capacity (TB) (Min)&lt;/TD&gt;&lt;TD width="64"&gt;15&lt;/TD&gt;&lt;/TR&gt;&lt;TR&gt;&lt;TD width="323"&gt;CPU (#cores) per Node (Min)&lt;/TD&gt;&lt;TD width="64"&gt;32&lt;/TD&gt;&lt;/TR&gt;&lt;TR&gt;&lt;TD width="323"&gt;Memory (GB) (Min)&lt;/TD&gt;&lt;TD width="64"&gt;512&lt;/TD&gt;&lt;/TR&gt;&lt;TR&gt;&lt;TD width="323"&gt;Network (GbE) (Min)&lt;/TD&gt;&lt;TD width="64"&gt;1 x 25&lt;/TD&gt;&lt;/TR&gt;&lt;/TBODY&gt;&lt;/TABLE&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Does it means:&lt;/P&gt;&lt;P&gt;1- Minimum capacity on&amp;nbsp; one HPE DL580 15T? (for example 5*3TB NVME )&lt;/P&gt;&lt;P&gt;2- on the other hand does it mandatory to use 25G Nic ? even when we are not using this bandwidth in our environment ?&lt;/P&gt;&lt;P&gt;3- Does it your mean we cannot use ESA with 10G nic ?&lt;/P&gt;</description>
      <pubDate>Tue, 20 Dec 2022 16:28:53 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2944789#M14737</guid>
      <dc:creator>baber</dc:creator>
      <dc:date>2022-12-20T16:28:53Z</dc:date>
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    <item>
      <title>Re: Main difference between vSAN ESA and OSA</title>
      <link>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2944796#M14738</link>
      <description>&lt;P&gt;&lt;a href="https://communities.vmware.com/t5/user/viewprofilepage/user-id/275378"&gt;@baber&lt;/a&gt;, yes the m&lt;SPAN&gt;inimum recommended networking bandwidth will be 25G for vSAN ESA, whereas for OSA it is still 10G refer -&amp;nbsp;&lt;A href="https://core.vmware.com/resource/vsan-frequently-asked-questions-faq#section11" target="_blank" rel="noopener"&gt;https://core.vmware.com/resource/vsan-frequently-asked-questions-faq#section11&lt;/A&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;More on the NIC Considerations could be read here -&amp;nbsp;&lt;A href="https://core.vmware.com/blog/designing-vsan-networks-2022-edition-vsan-esa" target="_blank" rel="noopener"&gt;https://core.vmware.com/blog/designing-vsan-networks-2022-edition-vsan-esa&lt;/A&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;Now, with regards to the drive size for &lt;STRONG&gt;vSAN-ESA-AF-2&lt;/STRONG&gt; ReadyNode profile, I see the supported HPE vSAN ESA Server Models are - ProLiant DL360/380 Gen10 Plus.&lt;/P&gt;&lt;P&gt;Please refer vSAN Compatibility guide -&amp;nbsp;&lt;A href="https://www.vmware.com/resources/compatibility/search.php?deviceCategory=vsanesa" target="_blank" rel="noopener"&gt;https://www.vmware.com/resources/compatibility/search.php?deviceCategory=vsanesa&lt;/A&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Also, a&lt;SPAN&gt;ll official sizing exercises should use the &lt;/SPAN&gt;&lt;A title="vSAN ReadyNode sizer" href="https://vsansizer.vmware.com/" target="_blank" rel="noopener"&gt;vSAN ReadyNode sizer&lt;/A&gt;&lt;SPAN&gt; to give more precise and thorough guidance for your specific environment.&lt;/SPAN&gt;&lt;/P&gt;</description>
      <pubDate>Tue, 20 Dec 2022 17:34:45 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2944796#M14738</guid>
      <dc:creator>Shen88</dc:creator>
      <dc:date>2022-12-20T17:34:45Z</dc:date>
    </item>
    <item>
      <title>Re: Main difference between vSAN ESA and OSA</title>
      <link>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2944879#M14743</link>
      <description>&lt;P&gt;25GbE is the minimum indeed. It is the minimum for a reason, you can't use the NVMe devices to the full without having sufficient bandwidth, this is why we have that minimum. if you have no IOPS/Latency requirement that requires ESA, then you may as well use OSA.&lt;/P&gt;</description>
      <pubDate>Wed, 21 Dec 2022 11:20:46 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2944879#M14743</guid>
      <dc:creator>depping</dc:creator>
      <dc:date>2022-12-21T11:20:46Z</dc:date>
    </item>
    <item>
      <title>Re: Main difference between vSAN ESA and OSA</title>
      <link>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2945294#M14754</link>
      <description>&lt;P&gt;1- Can we use vSAN OSA on vSphere8 or we just should use ESA for vSphere8 ?&lt;/P&gt;&lt;P&gt;2- I have bough a bunch of NVMe disks for vSAN before introduce ESA . Currently I have 10G NIC cards and my switch support just 10G .&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;As I find out I can just use vSAN OSA on vSAN 8 now with my equipments . Is that correct ?&lt;/P&gt;&lt;P&gt;3- If&amp;nbsp; the answer about Q2 is Yes , Does your mean I cannot get good performance in my design when using OSA with above equipments as I don't have 25G NIC and cannot run ESA&amp;nbsp; ?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Sun, 25 Dec 2022 20:10:58 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2945294#M14754</guid>
      <dc:creator>baber</dc:creator>
      <dc:date>2022-12-25T20:10:58Z</dc:date>
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    <item>
      <title>Re: Main difference between vSAN ESA and OSA</title>
      <link>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2945297#M14755</link>
      <description>&lt;P&gt;Yes you can use vSAN OSA on vSphere 8.&lt;/P&gt;&lt;P&gt;Regards,&lt;BR /&gt;Joerg&lt;/P&gt;</description>
      <pubDate>Fri, 23 Dec 2022 20:22:36 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2945297#M14755</guid>
      <dc:creator>IRIX201110141</dc:creator>
      <dc:date>2022-12-23T20:22:36Z</dc:date>
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    <item>
      <title>Re: Main difference between vSAN ESA and OSA</title>
      <link>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2945511#M14758</link>
      <description>&lt;P&gt;Would you please help me about about follow questions :&lt;/P&gt;&lt;P&gt;1- I have bough a bunch of NVMe disks for vSAN before introduce ESA . Currently I have 10G NIC cards on my hosts and my switch support just 10G .&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;As you said we must use 25G NIC cards to run ESA . Now&amp;nbsp;does your mean I cannot get good performance in my environment when using OSA because you mentioned we need 25G NIC cards for NVMe disks ?&amp;nbsp;&lt;/P&gt;&lt;P&gt;2- You said we cannot run ESA when using 10G NICs . Does it your mean this is mandatory or VMware recommendation ? For example when we want to run ESA it will check our environment to detect if we are using 25G nics or not ?&lt;/P&gt;</description>
      <pubDate>Mon, 26 Dec 2022 19:12:59 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2945511#M14758</guid>
      <dc:creator>baber</dc:creator>
      <dc:date>2022-12-26T19:12:59Z</dc:date>
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    <item>
      <title>Re: Main difference between vSAN ESA and OSA</title>
      <link>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2945523#M14759</link>
      <description>&lt;P&gt;&lt;STRONG&gt;&lt;a href="https://communities.vmware.com/t5/user/viewprofilepage/user-id/275378"&gt;@baber&lt;/a&gt;&amp;nbsp;&lt;/STRONG&gt;&lt;/P&gt;&lt;P&gt;1. No - 10GBps should suffice fine for the vast majority of OSA workloads, the supported network minimums for OSA remain unchanged.&lt;BR /&gt;In vSAN OSA, typically only larger, busier and or/using things like R5/R6 (or R5+R5/R6+R6 in stretched) clusters would be exhausting the resources of 10Gbps networks.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;2. This is the supported network minimum - I don't think there is any hard-check that prevents using lower than this but if you choose to run on an unsupported configuration then you are taking responsibility for supporting this yourself when/if things go wrong.&lt;/P&gt;</description>
      <pubDate>Mon, 26 Dec 2022 23:06:08 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2945523#M14759</guid>
      <dc:creator>TheBobkin</dc:creator>
      <dc:date>2022-12-26T23:06:08Z</dc:date>
    </item>
    <item>
      <title>Re: Main difference between vSAN ESA and OSA</title>
      <link>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2945953#M14772</link>
      <description>&lt;P&gt;1- Does it your means when we want to use stretched cluster (2hosts) in ESA type,&amp;nbsp; it is not suitable use 10G ? Can we use 10G nic to implement ESA for standard implementation of vSAN ?&lt;/P&gt;&lt;P&gt;2- What is the main reason ESA implementation need minimum 25G nic ? If for NVME disks so in OSA implementation we can use NVME disks with 10G nic&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Thu, 29 Dec 2022 21:55:38 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2945953#M14772</guid>
      <dc:creator>baber</dc:creator>
      <dc:date>2022-12-29T21:55:38Z</dc:date>
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    <item>
      <title>Re: Main difference between vSAN ESA and OSA</title>
      <link>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2946238#M14778</link>
      <description>&lt;P&gt;1.&amp;nbsp;Please read the documentation. It clearly states: with vSAN ESA 25GbE is the minimum NIC required. Lower is not supported.&lt;/P&gt;
&lt;P&gt;2. I explained that above already.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Mon, 02 Jan 2023 09:46:11 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSAN-Discussions/Main-difference-between-vSAN-ESA-and-OSA/m-p/2946238#M14778</guid>
      <dc:creator>depping</dc:creator>
      <dc:date>2023-01-02T09:46:11Z</dc:date>
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