In this installment of the StorageLink Step by Step Series, Steve Umbehocker covers connecting to Storage Systems via the StorageLink Manager console.

In Part 1, Steve Umbehocker reviewed the installation of the StorageLink component of Citrix Essentials for Hyper-V. In Part 2, Steve reviewed the initial configuration of StorageLink after it has been installed.

Express Edition Download
http://www.citrix.com/ehvexpress

StorageLink Deep Dive Webinar - http://community.citrix.com/blogs/citrite/barryf/2009/04/13/StorageLink+-+Essentials+for+Hyper-V+Deep+Dive+Webinar

StorageLink Demo Videos
http://www.citrix.com/ehv

StorageLink Overview - http://community.citrix.com/blogs/citrite/barryf/2009/02/23/StorageLink+in+Essentials+for+Hyper-V

Provisoning Services Overview - http://community.citrix.com/blogs/citrite/barryf/2009/03/20/Provisioning+for+Hyper-V+with+Citrix+Essentials

Lab Manager Overview - http://community.citrix.com/blogs/citrite/barryf/2009/03/19/Essentials+for+Hyper-V+with+Lab+Management

StorageLink Install Install Guide - http://support.citrix.com/article/CTX120789
StorageLink User Guide - http://support.citrix.com/article/CTX120791

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In Part 1, Steve Umbehocker reviewed the installation of the StorageLink component of Citrix Essentials for Hyper-V. In this next installment, Steve reviews the initial configuration of StorageLink after it has been installed.

The Enterprise Edition includes the full version of StorageLink, Dynamic Provisioning Services for Server Operating Systems, and complete WorkFlow Orchestration.

The Platinum Edition of Citrix Essentials for Hyper-V adds in Lab Manager to provide a complete cost effective virtual lab solution, and Stage Manager to automate the process of migrating newly tested and verified configurations from the virtual lab directly into production. You can download a evaluation copy of the Platinum Edition of Citrix Essentials for Hyper-V at http://www.citrix.com/ehv.

Express Edition Download
http://www.citrix.com/ehvexpress

StorageLink Deep Dive Webinar - http://community.citrix.com/blogs/citrite/barryf/2009/04/13/StorageLink+-+Essentials+for+Hyper-V+Deep+Dive+Webinar

StorageLink Demo Videos
http://www.citrix.com/ehv

StorageLink Overview - http://community.citrix.com/blogs/citrite/barryf/2009/02/23/StorageLink+in+Essentials+for+Hyper-V

Provisoning Services Overview - http://community.citrix.com/blogs/citrite/barryf/2009/03/20/Provisioning+for+Hyper-V+with+Citrix+Essentials

Lab Manager Overview - http://community.citrix.com/blogs/citrite/barryf/2009/03/19/Essentials+for+Hyper-V+with+Lab+Management

StorageLink Install Install Guide - http://support.citrix.com/article/CTX120789
StorageLink User Guide - http://support.citrix.com/article/CTX120791

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StorageLink is one of the components of the new Citrix Essentials for Hyper-V product.

Steve Umbehocker of the StorageLink Development team recently recorded a series of videos that guide you step by step through installing and configuring StorageLink. The first video, Installing StorageLink, is below.

The Enterprise Edition includes the full version of StorageLink, Dynamic Provisioning Services for Server Operating Systems, and complete WorkFlow Orchestration.

The Platinum Edition of Citrix Essentials for Hyper-V adds in Lab Manager to provide a complete cost effective virtual lab solution, and Stage Manager to automate the process of migrating newly tested and verified configurations from the virtual lab directly into production. You can download a evaluation copy of the Platinum Edition of Citrix Essentials for Hyper-V at http://www.citrix.com/ehv.

Express Edition Download
http://www.citrix.com/ehvexpress

StorageLink Deep Dive Webinar - http://community.citrix.com/blogs/citrite/barryf/2009/04/13/StorageLink+-+Essentials+for+Hyper-V+Deep+Dive+Webinar

StorageLink Demo Videos
http://www.citrix.com/ehv

StorageLink Overview - http://community.citrix.com/blogs/citrite/barryf/2009/02/23/StorageLink+in+Essentials+for+Hyper-V

Provisoning Services Overview - http://community.citrix.com/blogs/citrite/barryf/2009/03/20/Provisioning+for+Hyper-V+with+Citrix+Essentials

Lab Manager Overview - http://community.citrix.com/blogs/citrite/barryf/2009/03/19/Essentials+for+Hyper-V+with+Lab+Management

StorageLink Install Install Guide - http://support.citrix.com/article/CTX120789
StorageLink User Guide - http://support.citrix.com/article/CTX120791

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Long before Neo said "whoa" ... civilizations throughout history have relied heavily on the wisdom and information provided by oracles.

In The Matrix, the Oracle says "if you can't find the answer, then I'm afraid there may be no tomorrow for any of us." Well, maybe that's a bit extreme in this case... but with the amount of information available within the Citrix Community page for Oracle, I don't think we'll have to worry about finding out.

Not only will this site provide a variety of information and wisdom on the Citrix and Oracle relationship, but you will also have to opportunity to contribute and become an "oracle" yourself. You can even view Oracle apps working on the iPhone with Citrix Receiver. Consider this page a library of resources for all things Citrix and Oracle...or a "shrine of information" so to speak.

From this page you'll have access to news, blogs, community discussions, and Tweets from the Citrix and Oracle communities as well as third-party sites. This information is aggregated into a single area within the page and provides all related information in a simple-to-use format. You can also follow us on Twitter for up-to-the-minute information.

Got questions? Related discussion forums are also consolidated within this page. Review existing discussion postings and threads to find answers to commonly asked questions. You can even join in the discussion and post new threads. Got knowledge? Become a contributor! The true nature of community is to share information. Remember, it takes a village...or a community in this instance.

We also want to know if and how you're using Oracle in your Citrix environments. Let us know in the Community Verified area. It's easy to use and takes only minutes of your time. Simply identify the Oracle application and Citrix product and you're done!

According to Ralph Waldo Emerson, "each man is a hero and an oracle to somebody." So be a hero within the community and become an oracle for the Citrix & Oracle relationship! Participate in the Citrix Community page for Oracle.

Introducing the Citrix NetApp Community!  Here's a Community for you when you want to be in the know on anything and everything Citrix and NetApp.  Want to hear what the latest and greatest jabber about our integration?  Need the info on the July 16th Citrix/NetApp VDI Expert Series featuring EMA?  Looking for Best Practices in deploying Citrix and NetApp?  Get it all from the Citrix NetApp Community.  Check it out, let me know what you think and don't be shy if you have suggestions on improving the site.  - Vivian

Introducing the first and only heterogeneous hypervisor mobile management tool – Virtualization Mobile Manager (VMM)

I'm pleased to announce that we have just released a new version of the Brief Troubleshooting Guide (BTG) via the Knowledge Center.
http://support.citrix.com/article/ctx106727

For those of you unaware, the Brief Troubleshooting Guide is intended as the first resource for Citrix Administrators/Engineers to troubleshooting technical issues for all Citrix products/technologies. The BTG gives guidance on where to start if a Citrix Administrator/Engineer is not very familiar with the product. The BTG is not in any way supposed to be comprehensive, but will help you gather the right information quickly, allowing YOU and Citrix Technical Support to resolve your issue promptly.

This release of the BTG is Bigger, Better and Bursting with new ways to help you troubleshoot all Citrix products.
All sections of the BTG were completely overhauled and lots of new products were added, for example:

• Citrix Offline App Plug-in
• Citrix Receiver for Windows
• Citrix XenServer
• Citrix Repeater Client
• Command Center
• EdgeSight for NetScaler
• EdgeSight for Load Testing
• Citrix User Profile Manager
• Citrix EasyCall
• Provisioning Services for Datacenters and Desktops
• Workflow Studio

Please download the latest BTG from http://support.citrix.com/article/ctx106727
For feedback, suggestions, corrections - BTG@citrix.com

David
Twitter: citrixreadiness

Vlapic is virtualized Lapic.
Lapic = Local Advanced Programmable Interrupt Controller

[ NOTICE ][XEVTCHN]Failed to add vlapic page for vcpu 0 to physmap: -22.

Only really an issue with ACPI, otherwise the OS will handle the request. This is why it is a [ NOTICE ].

You may experience video hangs or freezes if there is a problem with vlapic, however I'd expect the message to be an [ Error ], instead of a [ NOTICE ].
Also check that the latest XenTools is installed.

...

Today Citrix and Microsoft announced an expanded Desktop Virtualization partnership. I'll let the announcement speak for itself and we'll start to release more specifics on the solution over time, but I did want to share my perspective. I think this is good for our customers because Citrix is enabling choice by allowing them to leverage existing or planned investments and extends the reach and usability of those investments. Let me attempt to clarify what I mean.

The reality is, that many customers use or need a combination App-V, Systems Center, Citrix Application Virtualization both online and offline. I always felt that this caused some artificial confusion about what to choose. For example if I need to stream 64 bit apps with Citrix technology, and I need to stream applications which have services via App-V technology then I can now do both side by side in an integrated fashion. Your existing investments (e.g. the sunk cost of packaging, sequencing, testing and validating the applications) are protected and you can plot your course as you see fit together with Citrix and Microsoft.

I know this question will come up so I will also answer it directly based on the data in front of me. Does this mean Citrix is stopping Application Virtualization development? Well, now that I have the advantage of having access to status reports I don't have to speculate anymore. I know for a fact that there are a number of enhancements that our development teams are working on, so these enhancements continue in preparation for the next XenApp release. Moving beyond just the next release of XenApp, we plan to continue to invest to enable delivery of Windows applications as a service.

I believe customers want uncomplicated, user-friendly products that simplify their lives. I know from experience that managing Desktop agent sprawl is a pain. Hence, later in 2009 App-V will be able to be plugged directly into the Citrix Receiver which will make things easier for our customers via the Receiver management framework. This will also enable more intelligent options, where via policy or connectivity one can determine the best place to determine application execution for a user, streamed or hosted. Certainly an area I am going to spend a lot of time thinking about. Additionally, Citrix Dazzle enables a new 'Pull' based interface that consumers are familiar with. Note, I don't just say it's a PNAgent replacement, I think it's a lot more if you grasp the real value. This enables a whole new delivery model, and innovative ways for IT to reach and empower it's customers that too often accuse IT of being slow and rigid. How much time is spent setting up user environments, getting inventory, reconciling and so on? By enabling user based self service, a whole new capability is available. Yes, Citrix will enable App-V to be delivered as a user self service via Dazzle, which I think will be cool, and combined with Merchandising Server, opens up the realm of the possible for delivering applications as a service. Extend these ideas out further into the Cloud and emerging license models, and I think enabling application delivery for the vast majority of applications that are Windows based to complement Desktop Virtualization is a huge deal.

In 2010 XenApp will have a connector to ConfigMgr. This means that you will be able to manage XenApp environments from the ConfigMgr console. We'll blog more on specifics on what features of XenApp management we will expose as we evolve the capability and how,  but for now it's reasonably safe to assume we will do things like publishing apps, advertise XenApp as collections etc.  The more important point right now is to understand that by leveraging XenApp, you will now be able to extend the reach of ConfigMgr to a more diverse set of platforms like Mac and Linux that may not be managed by ConfigMgr. Think of it as Citrix extending the depth of solutions that Microsoft is providing for our mutual customers.

I thought it would be fun to share some experiences from week one and some of the cool innovations I saw.
So as you can imagine, one of my first instincts, having been curious for so many years as a customer about why this, why that, reading speculation, I just had to find out! It was like I had just been given my driving license and could go anywhere. I am sure many of you know Brad Pedersen our Chief Architect, Citrix Fellow and father of ICA. It was simply awesome to have him answer so many of my historic questions, 'the inside scoop,' and spend hours brain storming about where we are/could-going/go and ME being able to shape that conversation now. I also realized that we don't hear about a lot of the unsung hero's of Citrix who are the current generation of brilliant minds here. There is some really cool stuff coming with power management, so watch this space, and some future ideas that I hope we gain traction on. There are some advanced management ideas that we are thinking about and upcoming features that will help simplify your lives. HDX/ICA will continue to get better and you will see some new capabilities in very near term releases of the protocol. I'm beginning to play with some of the future prototypes of Dazzle that I think will be really easy to use from a more diverse set of devices.

I discovered the best conference room names are in our UK offices, best example was 'Vain.'  Without the internal Citrix Wiki I would be lost, everything has a code name! It's like learning a new language. I have never been so spoiled for choice on which free soda or juice to drink. Wow, I saw people wearing shorts at work a shock to the system after Wall Street. I got a chance to spend time with Mark Templeton our CEO and many of the executive team. Prior, my interactions were watching them on stage, or brief encounters at Customer Council events. I am pleased to report they are not aliens, and are listening. I asked Mark if it was ok to disagree with him, and he promised to hit me if I didn't!

I had a great conversation with Martin Duursma who runs Citrix Labs and chairs our CTO office, where we really got into interesting future areas that are currently under research, including Cloud and Client Virtualization including Mobile devices. Some of previous work from Citrix Labs has worked it's way to product, think iPhone client. This device support is now becoming even broader, check out Keith Turnbull's blog on our upcoming Blackberry client.

I also developed a new found respect for the size of our product and how much it actually does to support a vast customer base. There is so much deep embedded knowledge in so many areas that is very hard to replicate. I don't think people on the outside really appreciate what it takes to deliver this stuff. Coupled with the fact that these teams get this space, I think we are very well positioned for the future.

So all of this is just week one, where I have spent most of my time with the XenApp team talking about futures. The great thing about being a Citrix CTO is that I get involved in providing guidance for the firm's technology direction across our product suite, so I am only beginning to scratch the surface. As I work with the rest of our portfolio teams, I can already see that we have so many pieces of the puzzle that will enable us to build innovative solutions for our customers.

I'll share more real time updates via Twitter

That's why we've worked together to develop the Citrix Community page for SAP, a dedicated, one-stop shop for all things Citrix & SAP! So while we'll never say there is "too much" information on the Citrix and SAP relationship, we will say having a single place to access all information on the relationship is "wonderful".

On this page we've consolidated all related blogs, news, videos, etc... from Citrix, SAP and third-party sites in our feeds section to save you time on staying up to date on the Citrix and SAP happenings. You can even follow us on Twitter!

There's even a discussion forum dedicated to SAP-related discussions. Look for the answers to your questions within existing threads or post a new question in our discussion forum. Do you have technical questions about an SAP implementation? Do you want to learn more about the validation and performance results of SAP NetWeaver with Citrix XenApp and Citrix NetScaler? Do you want to learn more about Citrix's relationship with SAP? If you said yes, then this is the site for you!

Visit this page to learn the latest and greatest information about our relationship including press announcements, product validations, joint activities and resources...and don't forget to participate in our Community Verified initiative! Let us know how you're working with SAP in your Citrix environment from the convenient console located within the page.

So...why don't you come up and see us some time? And oh yeah...don't forget to participate in the discussion! Stop by the Citrix Community page for SAP today!

Hello World! This must be one of the strangest feelings I have had in my career, as for the first time I am now on the other side of the fence. My name is Harry Labana, it's a beautiful Sunday morning and after a crazy first week I am getting a chance to reflect on my first week at Citrix as the new CTO of the XenApp product group. So to begin, here's a little background to my story. I grew up in the UK of Indian decent and after working for a few years in the UK after University, I spent the last 13 years traveling the canyons of Wall Street with various firms, the last 9 of which have been as a Vice President with Goldman Sachs leading and working on numerous infrastructure, software development and management initiatives.

In particular, I have focused very heavily in the Windows world, and have been through the gamut of real world challenges this brings. From software distribution/packaging, OS upgrades, provisioning, software development, server/application/client virtualization, migrations/integrations, fair share of disasters, hardware, remote access, hosted applications and of course virtual desktops- I think I got most of it - I have been beaten into understanding the realities of execution responsibility at global scale. Fortunately, over the last few years I've also had the opportunity to work with many of the leading established vendors and emerging startups in the Application and Desktop virtualization industry and this has allowed me to learn from smart people with so many perspectives. By virtue of working in financial services, I've also been able to refine these perspectives by talking with investors, analysts and bankers in this space which has equipped me to be a VERY vocal Citrix Customer Council member for a number of years. So I guess Citrix had enough and decided to allow me to help chart their future direction, which is an immensely exciting opportunity, for which I am grateful and where I hope to make a difference by bringing a seasoned customer perspective.

As I reflect on what's happened in our industry over the years, a key observation is how I have seen Citrix technologies evolve from the early adoption days in the 90's as a band aid solution, to many customers now using Citrix as a strategic delivery platform and even greater numbers now considering the technology for the very first time. It is these early customer thought leaders that have done some really amazing things with the technology and enabled us to become a 1.6 billion dollar company by creating so much value for their clients. It seems to me that we are now also at the early stages of the next innovation cycle and early adopters are catching on. I recall sitting at a Synergy session in Houston last year where the topic was a discussion on Desktop Virtualization. I remember what felt like a cynical question about who's actually doing this and a call for a raise of hands. There was silence in the room and I got a nudge from one of my former team mates, and I raised my hand. I won't get into details, but the point is that I think customer thought leaders have and will continue to innovate and find use cases and solutions that we have not even conceived of yet because they are looking to build competitive advantage for their firms because they are driven by an opportunistic mentality that looks beyond teething constraints. Over time this innovation diffuses to the masses, and that's ok in many cases and lost opportunity for others. Working with customers and the broader community, I am convinced that we will continue to evolve our products to enable broader adoption of our technology stack so customers can solve real world problems.   

As I alluded to, I think it's very easy to play cynic, and I could have easily written an article about stuff many vendors can't do or theorize what will happen or what will not happen. I have learned that to build real world solutions requires skill, experience, judgment and the courage to reach out to customers and users who want to be part of the solution. I hope that many of you will be comfortable reaching out to me harry.labana@citrix.com and telling me what you really think as we build upon our current success and evolve our story. I promise I will incorporate your views into my thinking even if I don't agree.

http://support.citrix.com/article/CTX120718

XenServer 5.0 Update 3 Software Development Kit Guide

Handling pool master changes
1. Subscribe to updates in the list of hosts servers, and maintain a current list of hosts in the pool
2. If the connection to the pool master fails to respond, attempt to connect to all hosts in the list until one
responds
3. The first host to respond will return the HOST_IS_SLAVE error message, which contains the identity of
the new pool master (unless of course the host is the new master)
4. Connect to the new master

// This is an error return code from XenServer. 

// We only use the retry loop to reauthenticate if we receive:
//    - SESSION_INVALID
//    - HOST_IS_SLAVE
// Otherwise we just rethrow the exception
    if (    !(SESSION_INVALID)
        && !(HOST_IS_SLAVE) )

    {         throw;     }
 

XenCenter works by remembering the list of hosts in the pool - i.e. what the list of hosts/IPs was at the time of the last XenCenter login. When the one it thinks is master isn't available, it tries the others in the list to see if any of them have become masters.

Ok, rather than bore you with copious platitudes about why and how HP is one of our most important partners, let's get right to Introducing the NEW Citrix and HP Community site and the cool resources available here and now. To quote my esteemed colleague "there's a Community for that!". 

Like all of the partner communities on the Citrix community portal, you will receive real-time feeds on all things HP and Citrix, get a glimpse at he most requested documents, latest hot-fixes & patches and participate in our forums.  I thought I would take a minute and highlight some new items to welcome you to the page.

First we need to mention the recent validation of Citrix XenServerwith HP Virtual Connect Flex-10. See the links in the highlights section. Virtualizing network infrastructure will soon become the next holy grail in our industry (previously discussed here) and HP and Citrix XenServer are delivering today!

Are you perhaps wondering if that new HP software you are considering is being used by others within Citrix environments? Find out now in the Community Verified portlet, and yes, you can share what HP and Citrix solutions you are using with the community via this portlet. Contribute and enrich the Citrix and HP community- share your experiences.  

Ok - now it is your turn. After you have explored the feeds, forums, knowledge and technical resources, on the Citrix and HP Community tell us what is missing, or new content sources you would like to see here ... We will be evolving this site based on your input! Brent. 

From the 5.5 Admin Guide
http://docs.vmd.citrix.com/XenServer/5.5.0/1.0/en_gb/reference.html#id2554601
3.2.6. Storage Multipathing
Dynamic multipathing support is available for Fibre Channel and iSCSI storage backends. By default, it uses round-robin mode load balancing, so both routes have active traffic on them during normal operation. You can enable multipathing in XenCenter or on the xe CLI.

 That document is still valid. Just keep in mind that XenServer uses all routes available to SAN. The controller on the SAN if configurable can decide which port(destination path) writes to the LUN. For example let's say the customer has 4 paths. Traffic goes over all 4 paths to SAN array. Controller on SAN array get the traffic and then decides which controller port will be used to write to LUN. Most SAN arrays (that I know of) only support one controller port at a time writing to a LUN. Some may round robin traffic or some may be able to assign a specific one. In the end though the SAN manufacturer will have some documentation on how to configure both from the SAN array and if any configuration other than default needs to be done on a Linux OS (preferable RHEL 5.x).

I attached an example of the type of document you're looking for from the SAN manufacturer along with this link
http://support.novell.com/techcenter/sdb/en/2005/04/sles_multipathing.html

There is a new Express Edition of Citrix Essentials for Hyper-V, and it is FREE! Now you can quickly and easily combine the power of Hyper-V- System Center Virtual Machine Manager and Essentials for Hyper-V Express Edition.

http://citrix.com/ehvexpress

Of course, Express Edition provides just a small sampling of what is possible to achieve with Citrix Essentials for Hyper-V. The Enterprise Edition includes the full version of StorageLink, Dynamic Provisioning Services for Server Operating Systems, and complete WorkFlow Orchestration.

The Platinum Edition of Citrix Essentials for Hyper-V adds in Lab Manager to provide a complete cost effective virtual lab solution, and Stage Manager to automate the process of migrating newly tested and verified configurations from the virtual lab directly into production. You can download a evaluation copy of the Platinum Edition of Citrix Essentials for Hyper-V at http://www.citrix.com/ehv.

Express Edition Download
http://www.citrix.com/ehvexpress

StorageLink Deep Dive Webinar - http://community.citrix.com/blogs/citrite/barryf/2009/04/13/StorageLink+-+Essentials+for+Hyper-V+Deep+Dive+Webinar

StorageLink Demo Videos
http://www.citrix.com/ehv

StorageLink Overview - http://community.citrix.com/blogs/citrite/barryf/2009/02/23/StorageLink+in+Essentials+for+Hyper-V

Provisoning Services Overview - http://community.citrix.com/blogs/citrite/barryf/2009/03/20/Provisioning+for+Hyper-V+with+Citrix+Essentials

Lab Manager Overview - http://community.citrix.com/blogs/citrite/barryf/2009/03/19/Essentials+for+Hyper-V+with+Lab+Management

StorageLink Install Install Guide - http://support.citrix.com/article/CTX120789
StorageLink User Guide - http://support.citrix.com/article/CTX120791

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I'm sure you are all familiar with the iPhone commercials and the ubiquitous "there is an app for that" phrase that has seemingly become the catch phrase of this decade. Previous catch phrases include --but not limited to -- The 70s-"Heeeey" , The 80s-"Where's the Beef?" The 90s-"Doh!".

All kidding aside, "there's an app for it" reflects the current state of consumerization and customization that is becoming commonplace in today's on-line experience. It is no longer acceptable to have generic applications and content. We all know what we need/want for our apps and we need them now!

Citrix Community Updates

In that same spirit, today I have the pleasure of sharing some of the upgrades we have made to the Citrix community sites. Need a community for discussing Citrix and Microsoft products, "there's a community for that", need a community for the latest and greatest on Citrix and Oracle, "there's a community for that", need a community for finding cool communities "there's a community for that" , need a community where you can geek out (both online and local), "there are 2 communities for that" (gotta spice it up a bit , the first is here and the second is here)... well, I think you get the idea. You should check out the Citrix Community home page and in particular the new partner community module.

My team and I are continually looking for ways to connect with the Citrix community of customers, partners, Citrites and anyone interested in the latest in virtualization of applications, desktops and servers. We are continually soliciting feedback and update the site based on direct comments and industry trends.

Now it's your turn....

Let us know what types of communities you need and (you guessed it) "there will be a community for that", we are open to all types of ideas... here's a few to get the ball rolling (and maybe a peek at the future )... How about a Citrix and Windows 7 community? Or a Citrix and Desktop Virtualization community? Or (heaven forbid!) a Citrix and VMware community?

Also, let us know what type of content you are looking for in your communities. Check out the partner communities or even XenServerCentral for our real time multi-media feeds. Let us know how we can make them better for you...

Now I need to get back to my favorite iPhone App (an oldie but a goodie) ....

john

Xen works by letting the hypervisor run in ring 0, and the guest OS run in ring 1.
Applications on the Dom-U are in ring 3.

http://www.asahi-net.or.jp/~AA4T-NNGK/xen5.html
http://www.valinux.co.jp/contents/tech/techlib/xen/xen_sp_01.html
http://www.keyman.or.jp/3w/prd/13/30001813/?vos=nkeyadww0904270201

ハイパーバイザ
ハードウェアのエミュレートを行い、仮想マシン環境を作り出すプログラムを指します。CPUやメモリなどの資源の仮想化を行い各仮想マシンに提供します。仮想マシンモニタ、VMMと呼ばれることもあります。http://docs.vmd.citrix.com/XenServer/4.0.1/ja/installation/installation.html
PuTTY;
http://ja.wikipedia.org/wiki/PuTTY

EMC社も。

http://www.emc.com/collateral/hardware/white-papers/h5968-using-celerra-ip-storage-with-xen-server-wp.pdf

また*3、他社サイトの資料ですが、、、

CitrixXenServer 5.0と NetApp ストレージのベスト・プラクティス

http://e-marketing.jp/netapp/50vgc/re/pdf_04.html