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    <title>topic Re: Best Stripe Size for Virtual machines in ESXi Discussions</title>
    <link>https://communities.vmware.com/t5/ESXi-Discussions/Best-Stripe-Size-for-Virtual-machines/m-p/2229703#M216827</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I'm affraid there is nothing like "best strip size" for VM-datastore. It all depends on usage scenario (many small files, or less big files? read/write ratio?, etc.). There are though some other values you should consider:&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;- disk sector-size: 512B, 4kB (can be variable for sas-drives)&lt;/P&gt;&lt;P&gt;- primary filesystem block size: for vmfs5 it is 1MB (with sub-block 8kB)&lt;/P&gt;&lt;P&gt;- secondary filesystem block size (that of VMs): depends on filesystem used (i.e. btrfs has default blocksize 16kB, ntfs 4kB, etc.)&lt;/P&gt;&lt;P&gt;- ssd erase-block size: this differs with vendors, mostly 4MB, but I have seen values between 1MB&amp;nbsp; and 8MB&lt;/P&gt;&lt;P&gt;- cache-size of your raid-controller (can be anything between zero and a few GB)&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;If you do not have time for testing, just pick default value raid-controller offers. If that is what screenshot shows, I think it is quite good default choice and it makes sense to me (full strip-size equals to vmfs5 block-size, 1MB). It does not make sense to go under this value, but I would increase it if you store dominantly large files...&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Mon, 11 May 2015 08:37:54 GMT</pubDate>
    <dc:creator>JarryG</dc:creator>
    <dc:date>2015-05-11T08:37:54Z</dc:date>
    <item>
      <title>Best Stripe Size for Virtual machines</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Best-Stripe-Size-for-Virtual-machines/m-p/2229700#M216824</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 am deploying ESXI on my HP Gen 9 DL360P server, with RAID 1 for OS (ESXI) and RAID 6 for Data Store. While creating RAID I came up the screen where we can customize the Stripe Size/ Full Stripe Size , Sectors / Track , Size etc. I would like to know if there is any Vmware recommended best practice for selecting these ?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;At present I just use the default which HP comes with.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Please help&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper" image-alt="RAID_13.png"&gt;&lt;img src="https://communities.vmware.com/t5/image/serverpage/image-id/59280i16887842AC91EEC0/image-size/large?v=v2&amp;amp;px=999" role="button" title="RAID_13.png" alt="RAID_13.png" /&gt;&lt;/span&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Sun, 10 May 2015 07:22:35 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Best-Stripe-Size-for-Virtual-machines/m-p/2229700#M216824</guid>
      <dc:creator>funmansk</dc:creator>
      <dc:date>2015-05-10T07:22:35Z</dc:date>
    </item>
    <item>
      <title>Re: Best Stripe Size for Virtual machines</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Best-Stripe-Size-for-Virtual-machines/m-p/2229701#M216825</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I'm not aware of a recommendation by VMware. It's actually the RAID controller vendor who knows what's best for his hardware. I deployed a bunch of DL380 Gen9 hosts this week and left all settings at their default values (as I did in the past with other models).&lt;/P&gt;&lt;BLOCKQUOTE&gt;&amp;gt;&amp;gt;&amp;gt; ... with RAID 1 for OS (ESXI) and RAID 6 for Data Store ....&lt;/BLOCKQUOTE&gt;&lt;P&gt;Although you can do this, there's absolutely no need for this. The installation will format the drive/logical volume as required. &lt;SPAN&gt;ESXi - once loaded - runs in the host's memory, so that even if installed on a USB/SD device (e.g. a MicroSD card in the Gen9 models) there's no performance impact. It may just require a few more seconds for booting.&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;André&lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Sun, 10 May 2015 09:02:24 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Best-Stripe-Size-for-Virtual-machines/m-p/2229701#M216825</guid>
      <dc:creator>a_p_</dc:creator>
      <dc:date>2015-05-10T09:02:24Z</dc:date>
    </item>
    <item>
      <title>Re: Best Stripe Size for Virtual machines</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Best-Stripe-Size-for-Virtual-machines/m-p/2229702#M216826</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;VMware didn't have the recommendation for Strip size related to create the RAID size. &lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Sun, 10 May 2015 17:44:54 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Best-Stripe-Size-for-Virtual-machines/m-p/2229702#M216826</guid>
      <dc:creator>CoolRam</dc:creator>
      <dc:date>2015-05-10T17:44:54Z</dc:date>
    </item>
    <item>
      <title>Re: Best Stripe Size for Virtual machines</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Best-Stripe-Size-for-Virtual-machines/m-p/2229703#M216827</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I'm affraid there is nothing like "best strip size" for VM-datastore. It all depends on usage scenario (many small files, or less big files? read/write ratio?, etc.). There are though some other values you should consider:&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;- disk sector-size: 512B, 4kB (can be variable for sas-drives)&lt;/P&gt;&lt;P&gt;- primary filesystem block size: for vmfs5 it is 1MB (with sub-block 8kB)&lt;/P&gt;&lt;P&gt;- secondary filesystem block size (that of VMs): depends on filesystem used (i.e. btrfs has default blocksize 16kB, ntfs 4kB, etc.)&lt;/P&gt;&lt;P&gt;- ssd erase-block size: this differs with vendors, mostly 4MB, but I have seen values between 1MB&amp;nbsp; and 8MB&lt;/P&gt;&lt;P&gt;- cache-size of your raid-controller (can be anything between zero and a few GB)&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;If you do not have time for testing, just pick default value raid-controller offers. If that is what screenshot shows, I think it is quite good default choice and it makes sense to me (full strip-size equals to vmfs5 block-size, 1MB). It does not make sense to go under this value, but I would increase it if you store dominantly large files...&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 11 May 2015 08:37:54 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Best-Stripe-Size-for-Virtual-machines/m-p/2229703#M216827</guid>
      <dc:creator>JarryG</dc:creator>
      <dc:date>2015-05-11T08:37:54Z</dc:date>
    </item>
    <item>
      <title>Re: Best Stripe Size for Virtual machines</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Best-Stripe-Size-for-Virtual-machines/m-p/2229704#M216828</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Thank you JarryG.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 12 May 2015 11:36:43 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Best-Stripe-Size-for-Virtual-machines/m-p/2229704#M216828</guid>
      <dc:creator>funmansk</dc:creator>
      <dc:date>2015-05-12T11:36:43Z</dc:date>
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