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	<title>Comments on: Consolidated I/O for virtual data centers</title>
	<atom:link href="http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/feed/" rel="self" type="application/rss+xml" />
	<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/</link>
	<description>Data storage info &#38; analysis</description>
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		<title>By: Nick</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-207712</link>
		<dc:creator>Nick</dc:creator>
		<pubDate>Thu, 21 Jan 2010 23:47:32 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-207712</guid>
		<description>Xsigo&#039;s solution sounds like an exact &quot;respin&quot; of Topspin.</description>
		<content:encoded><![CDATA[<p>Xsigo&#8217;s solution sounds like an exact &#8220;respin&#8221; of Topspin.</p>
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		<title>By: Joe Kraska</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-206767</link>
		<dc:creator>Joe Kraska</dc:creator>
		<pubDate>Mon, 23 Nov 2009 15:23:15 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-206767</guid>
		<description>John, if one wants a big, cheap pipe, one can just plop in Infiniband adapters and go to down with IP-o-IB, which is currently supported by VMWare. That only leaves one with the need for an IB switch and an IB-to-IP Gateway device. The latter can be rolled by hand with any Linux box (or pair of Linux boxen, using something simple like Redhat Cluster Suite or your favorite clustering tool, if you need HA).</description>
		<content:encoded><![CDATA[<p>John, if one wants a big, cheap pipe, one can just plop in Infiniband adapters and go to down with IP-o-IB, which is currently supported by VMWare. That only leaves one with the need for an IB switch and an IB-to-IP Gateway device. The latter can be rolled by hand with any Linux box (or pair of Linux boxen, using something simple like Redhat Cluster Suite or your favorite clustering tool, if you need HA).</p>
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		<title>By: Joe Kraska</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-206766</link>
		<dc:creator>Joe Kraska</dc:creator>
		<pubDate>Mon, 23 Nov 2009 15:20:10 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-206766</guid>
		<description>Dan,

3 Leaf withdrew their I/O Virtualization product from the market well over a year ago. I had ordered their product for eval into our labs, but they canceled my order.</description>
		<content:encoded><![CDATA[<p>Dan,</p>
<p>3 Leaf withdrew their I/O Virtualization product from the market well over a year ago. I had ordered their product for eval into our labs, but they canceled my order.</p>
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		<title>By: Robin Harris</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-206741</link>
		<dc:creator>Robin Harris</dc:creator>
		<pubDate>Sun, 22 Nov 2009 00:26:16 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-206741</guid>
		<description>John, I haven&#039;t looked at Xsigo&#039;s pricing, but they said they work on a cost displacement basis. My comment was based on Infiniband prices, which are competitive for the bandwdith.

Robin</description>
		<content:encoded><![CDATA[<p>John, I haven&#8217;t looked at Xsigo&#8217;s pricing, but they said they work on a cost displacement basis. My comment was based on Infiniband prices, which are competitive for the bandwdith.</p>
<p>Robin</p>
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		<title>By: John</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-206733</link>
		<dc:creator>John</dc:creator>
		<pubDate>Sat, 21 Nov 2009 15:27:20 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-206733</guid>
		<description>Xsigo does have an interesting product but describing it as a big cheap pipe is just not accurate. I&#039;ve seen quotes for minimally configured systems running into 6 figures. There is positively a cost barrier with this technology. One of the cool things about Xsigo is the ability to consolidate fibre channel and ethernet networks into 1 IB connection to the host.  However in environments moving to FC0E with native FCoE targets, this benefit is lost or can also be provided by Cisco Nexus switches in mixed ethernet/FC environments for considerably less money.</description>
		<content:encoded><![CDATA[<p>Xsigo does have an interesting product but describing it as a big cheap pipe is just not accurate. I&#8217;ve seen quotes for minimally configured systems running into 6 figures. There is positively a cost barrier with this technology. One of the cool things about Xsigo is the ability to consolidate fibre channel and ethernet networks into 1 IB connection to the host.  However in environments moving to FC0E with native FCoE targets, this benefit is lost or can also be provided by Cisco Nexus switches in mixed ethernet/FC environments for considerably less money.</p>
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		<title>By: Dan Pollack</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-206719</link>
		<dc:creator>Dan Pollack</dc:creator>
		<pubDate>Fri, 20 Nov 2009 20:57:58 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-206719</guid>
		<description>Check out - 3leaf systems for approximate competition
http://www.3leafsystems.com/</description>
		<content:encoded><![CDATA[<p>Check out &#8211; 3leaf systems for approximate competition<br />
<a href="http://www.3leafsystems.com/" rel="nofollow">http://www.3leafsystems.com/</a></p>
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		<title>By: Jon Toor</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-206701</link>
		<dc:creator>Jon Toor</dc:creator>
		<pubDate>Thu, 19 Nov 2009 18:06:20 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-206701</guid>
		<description>Great questions here! Let me expand on the answers already offered.

First on Xen. Yes, Xsigo is transparent to the hypervisor. It appears as any physical NIC or HBA would. The only question is driver availability. On that front, yes, Red Hat Xen is supported, as well as VMware ESX 3.5 &amp; 4.0, Linux, Windows, HyperV, Novell.  Support is continuously being expanded, as well.

The host adapters are Mellanox, and are available from Xsigo and also from virtually every server maker. Most vendors also offer mezzanine cards for blades and switch modules as well. So Xsigo works across most every X86 server and blade system. Both 20G and 40G adapters can be used, and the cost on these is surprisingly low given the performance. 

On our blog, we&#039;ve started a series on virtual I/O technology basics. A good place to start if you&#039;re interested in learning more about this exciting new space! http://www.xsigo.com/blog/

 - Jon</description>
		<content:encoded><![CDATA[<p>Great questions here! Let me expand on the answers already offered.</p>
<p>First on Xen. Yes, Xsigo is transparent to the hypervisor. It appears as any physical NIC or HBA would. The only question is driver availability. On that front, yes, Red Hat Xen is supported, as well as VMware ESX 3.5 &amp; 4.0, Linux, Windows, HyperV, Novell.  Support is continuously being expanded, as well.</p>
<p>The host adapters are Mellanox, and are available from Xsigo and also from virtually every server maker. Most vendors also offer mezzanine cards for blades and switch modules as well. So Xsigo works across most every X86 server and blade system. Both 20G and 40G adapters can be used, and the cost on these is surprisingly low given the performance. </p>
<p>On our blog, we&#8217;ve started a series on virtual I/O technology basics. A good place to start if you&#8217;re interested in learning more about this exciting new space! <a href="http://www.xsigo.com/blog/" rel="nofollow">http://www.xsigo.com/blog/</a></p>
<p> &#8211; Jon</p>
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		<title>By: What a Tech Field Day! &#8211; Gestalt IT</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-206700</link>
		<dc:creator>What a Tech Field Day! &#8211; Gestalt IT</dc:creator>
		<pubDate>Thu, 19 Nov 2009 17:39:57 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-206700</guid>
		<description>[...] Consolidated I/O for virtual data centers  [...]</description>
		<content:encoded><![CDATA[<p>[...] Consolidated I/O for virtual data centers  [...]</p>
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		<title>By: Jason</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-206698</link>
		<dc:creator>Jason</dc:creator>
		<pubDate>Thu, 19 Nov 2009 16:32:02 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-206698</guid>
		<description>Like HP (if JD is right above), Cisco has a product coming for their UCS platform that does basically the same thing.  Riding DCE (CEE, whatever), you can carve out vHBA&#039;s and vNIC&#039;s which follow the VM around.  It&#039;s VMWare only (and will be, for the foreseeable future), but it is something.

--Jason (It&#039;s also Cisco exclusive, so there&#039;s that too)</description>
		<content:encoded><![CDATA[<p>Like HP (if JD is right above), Cisco has a product coming for their UCS platform that does basically the same thing.  Riding DCE (CEE, whatever), you can carve out vHBA&#8217;s and vNIC&#8217;s which follow the VM around.  It&#8217;s VMWare only (and will be, for the foreseeable future), but it is something.</p>
<p>&#8211;Jason (It&#8217;s also Cisco exclusive, so there&#8217;s that too)</p>
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		<title>By: JD</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-206669</link>
		<dc:creator>JD</dc:creator>
		<pubDate>Wed, 18 Nov 2009 20:42:34 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-206669</guid>
		<description>You asked what competitors this product has.  Isn&#039;t HP&#039;s virtual connect and Flex10 technology a somewhat direct competitor?  It&#039;s not exactly the same because it is tied to HP Blade servers, of course, but it performs similar functions for those servers.

-J

PS disclosure: I work at HP, but in the storageworks division; I am not connected to the Blade or virtual connect teams.
PS2  Thanks for a great website--I read it often and always learn something new.</description>
		<content:encoded><![CDATA[<p>You asked what competitors this product has.  Isn&#8217;t HP&#8217;s virtual connect and Flex10 technology a somewhat direct competitor?  It&#8217;s not exactly the same because it is tied to HP Blade servers, of course, but it performs similar functions for those servers.</p>
<p>-J</p>
<p>PS disclosure: I work at HP, but in the storageworks division; I am not connected to the Blade or virtual connect teams.<br />
PS2  Thanks for a great website&#8211;I read it often and always learn something new.</p>
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		<title>By: nomen</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-206667</link>
		<dc:creator>nomen</dc:creator>
		<pubDate>Wed, 18 Nov 2009 18:44:57 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-206667</guid>
		<description>Check out Virtensys who do similar IO virtualisation to Xsigo except using PCI express:

http://www.virtensys.com/</description>
		<content:encoded><![CDATA[<p>Check out Virtensys who do similar IO virtualisation to Xsigo except using PCI express:</p>
<p><a href="http://www.virtensys.com/" rel="nofollow">http://www.virtensys.com/</a></p>
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		<title>By: nomen</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-206659</link>
		<dc:creator>nomen</dc:creator>
		<pubDate>Wed, 18 Nov 2009 10:17:29 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-206659</guid>
		<description>Here is the Xsigo compatability matrix - they seem to support a range of IB adapters (Mellanox, Voltaire, IBM, Cisco, HP) and blade chassis IB swicth modules. I assume they must have custom drivers for all of these:

http://www.xsigo.com/_downloads/Spec_sheet/interoperability.pdf

Operating system support seems to be limited to Novell Linux, RHEL (XEN is mentioned too), VMware, and Windows 2003 + 2008</description>
		<content:encoded><![CDATA[<p>Here is the Xsigo compatability matrix &#8211; they seem to support a range of IB adapters (Mellanox, Voltaire, IBM, Cisco, HP) and blade chassis IB swicth modules. I assume they must have custom drivers for all of these:</p>
<p><a href="http://www.xsigo.com/_downloads/Spec_sheet/interoperability.pdf" rel="nofollow">http://www.xsigo.com/_downloads/Spec_sheet/interoperability.pdf</a></p>
<p>Operating system support seems to be limited to Novell Linux, RHEL (XEN is mentioned too), VMware, and Windows 2003 + 2008</p>
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		<title>By: Robin Harris</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-206653</link>
		<dc:creator>Robin Harris</dc:creator>
		<pubDate>Wed, 18 Nov 2009 05:34:25 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-206653</guid>
		<description>I *think* Xsigo relies on Mellanox for Infiniband adapters and driver support, and the Mellanox site says &quot;RHEL, SLES, Windows, HPUX, ESX3.5&quot; support.

Blake, I mentioned Hyper-V, but it isn&#039;t clear to me that Xsigo supports it today. But at the rate Hyper-V is gaining share it is a good bet that they - or Mellanox - will do so in good time.

Robin</description>
		<content:encoded><![CDATA[<p>I *think* Xsigo relies on Mellanox for Infiniband adapters and driver support, and the Mellanox site says &#8220;RHEL, SLES, Windows, HPUX, ESX3.5&#8243; support.</p>
<p>Blake, I mentioned Hyper-V, but it isn&#8217;t clear to me that Xsigo supports it today. But at the rate Hyper-V is gaining share it is a good bet that they &#8211; or Mellanox &#8211; will do so in good time.</p>
<p>Robin</p>
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		<title>By: TimC</title>
		<link>http://storagemojo.com/2009/11/17/consolidated-io-for-virtual-data-centers/comment-page-1/#comment-206652</link>
		<dc:creator>TimC</dc:creator>
		<pubDate>Wed, 18 Nov 2009 05:14:27 +0000</pubDate>
		<guid isPermaLink="false">http://storagemojo.com/?p=1699#comment-206652</guid>
		<description>So the two questions/issues I had were:
Are they using standard IB adapters in the hosts, or are they special Xsigo adapters?

Do they require a host based driver to function?  If so, what operating systems are supported today?</description>
		<content:encoded><![CDATA[<p>So the two questions/issues I had were:<br />
Are they using standard IB adapters in the hosts, or are they special Xsigo adapters?</p>
<p>Do they require a host based driver to function?  If so, what operating systems are supported today?</p>
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