Archive
#Gartner report – How to Choose Between #Hyper-V and #vSphere – #IaaS
The constant battle between the hypervisor and orchestration of IaaS etc. is of course continuing! But it is really fun I must say that Microsoft is getting more and more mature with it’s offerings in this space, great job!
One of the things that I tend to think most of is the cost, scalability and flexibility of the infrastructure that we build and how we build it, I often see that we tend to do what we’ve done for so many years now. We buy our SAN/NAS storage, we buy our servers but lean towards Blade servers though we think that’s the latest and coolest, and then we try to squeeze that into some sort of POD/FlexPods/UCS or whatever we like to call it to find our optimal “volume of Compute, Network and Storage” that we can scale. But is this scalable like the bigger cloud players like Google, Amazon etc.? Is this 2013 state of the art? I think that we’re just fooling ourselves a bit and build whatever we’ve done for all these years and don’t really provide the business with anything new… but that’s my view… I know what I’d look at and most of you that have read my earlier blog posts know that I love the way of scaling out and doing more like the big players using something like Nutanix and ensure that you choose the right IaaS components as a part of that stack, as well as the orchestration layer (OpenStack, System Center, CloudStack, Cloud Platform or whatever you prefer after you’ve done your homework).
Back to the topic a bit, I’d say that the hypervisor is of no importance anymore, that’s why everyone if giving it away for free or to the open source community! Vendors are after the more IaaS/PaaS orchestration layer and get into that because if they get that business then they have nested their way into your business processes, that’s where ultimately that will deliver the value as IT services in an automated way once you’ve got your business services and processes in place, and then it’s harder to make a change and they will live fat and happy on you for some years to come! 😉
#Citrix #PVS vs. #MCS Revisited – #Nutanix, #Sanbolic
Another good blog post from Citrix and Nick Rintalan around the famous topic whether to go for PVS or MCS! If your thinking about this topic then don’t miss this article. Also ensure that you talk to someone who have implemented an image mgmt/provisioning service like this to get some details on lessons learnt etc., also with the change in the hypervisor layer and the cache features this is getting really interesting…
AND don’t forget the really nice storage solutions that exists out there like Nutanix and Melio that really solves some challenges out there!!
http://go.nutanix.com/rs/nutanix/images/TG_XenDesktop_vSphere_on_Nutanix_RA.pdf
Melio Solutions – Virtual Desktop Infrastructure
Back to the Citrix blog post:
It’s been a few months since my last article, but rest assured, I’ve been keeping busy and I have a ton of stuff in my head that I’m committed to getting down on paper in the near future. Why so busy? Well, our Mobility products are keeping me busy for sure. But I also spent the last month or so preparing for 2 different sessions at BriForum Chicago. My colleague, Dan Allen, and I co-presented on the topics of IOPS and Folder Redirection. Once Brian makes the videos and decks available online, I’ll be sure to point people to them.
So what stuff do I want to get down on paper and turn into a future article? To name a few…MCS vs. PVS (revisited), NUMA and XA VM Sizing, XenMobile Lessons Learned “2.0″, and Virtualizing PVS Part 3. But let’s talk about that first topic of PVS vs MCS now.
Although BriForum (and Synergy) are always busy times, I always try to catch a few sessions by some of my favorite presenters. One of them is Jim Moyle and he actually inspired this article. If you don’t know Jim, he is one of our CTPs and works for Atlantis Computing – he also wrote one of the most informative papers on IOPS I’ve ever read. I swear there is not a month that goes by that I don’t get asked about PVS vs. MCS (pros and cons, what should I use, etc.). I’m not going to get into the pros and cons or tell you what to use since many folks like Dan Feller have done a good job of that already, even with beautiful decision trees. I might note that Barry Schiffer has an updated decision tree you might want to check out, too. But I do want to talk about one of the main reasons people often cite for not using MCS – it generates about “1.6x or 60% more IOPS compared to PVS“. And ever since Ken Bell sort of “documented” this in passing about 2-3 years ago, that’s sort of been Gospel and no one had challenged it. But our CCS team was seeing slightly different results in the field and Jim Moyle also decided to challenge that statement. And Jim shared the results of his MCS vs. PVS testing at BriForum this year – I think many folks were shocked by the results.
What were those results? Here is a summary of the things I thought were most interesting:
- MCS generates 21.5% more average IOPS compared to PVS in the steady-state (not anywhere near 60%)
- This breaks down to about 8% more write IO and 13% more read IO
- MCS generates 45.2% more peak IOPS compared to PVS (this is closer to the 50-60% range that we originally documented)
- The read-to-write (R/W) IO ratio for PVS was 90%+ writes in both the steady-state and peak(nothing new here)
- The R/W ratio for MCS at peak was 47/53 (we’ve long said it’s about 50/50 for MCS, so nothing new here)
- The R/W ratio for MCS in the steady-state was 17/83 (this was a bit of a surprise, much like the first bullet)
So how can this be?!?
I think it’s critical to understand where our initial “1.5-1.6x” or “50-60%” statement comes from – that takes into account not just the steady-state, but also the boot and logon phases, which are mostly read IOPS and absolutely drive up the numbers for MCS. If you’re unfamiliar with the typical R/W ratios for a Windows VM during the various stages of its “life” (boot, logon, steady-state, idle, logoff, etc.), then this picture, courtesy of Project VRC, always does a good job explaining it succinctly:
We were also looking at peak IOPS and average IOPS in a single number – we didn’t provide two different numbers or break it down like Jim and I did above in the results, and a single IOPS number can be very misleading in itself. You don’t believe me? Just check out my BriForum presentation on IOPS and I’ll show you several examples of how…
Continue reading here!
//Richard
#Citrix #XenDesktop 7 on #vSphere Validated Design Guide is available now!
Really good design guide by Citrix and blog post by Carisa Powell:
We are pleased to announce the availability of the Citrix Solutions Lab 5000-user XenDesktop 7 on vSphere Validated Design Guide.
Yes, you read that right, XenDesktop on vSphere. XenDesktop is also known to many vSphere customers as the best VDI solution for vSphere, and this design guide showcases the latest release of XenDesktop features and functionality all being hosted on a vSphere hypervisor. XenDesktop is the best of both virtual apps and desktops from a single platform, so XenDesktop is VDI, XenDesktop is app virtualization, XenDesktop is server-hosted apps and desktops, XenDesktop is secure remote access, XenDesktop is mobility…and with XenDesktop 7 you get all of this functionality from a single platform.
This design guide combines everything that is XenDesktop 7 and delivers it from vSphere to showcase how you can provide an app, desktop, remote access, and more solution for any type of user:
- VDI – XenDesktop offers a variety of VDI use cases, whether the user needs a standardized, corporate desktop that remains consistent and routine, or the user needs a personalized virtual desktop that he or she can customize to meet their business needs. This design guide validates XenDesktop Provisioning Services central image management technology for Pooled VDI on vSphere and XenDesktop Personal vDisk technology for delivering Personal VDI on vSphere.
- Server-hosted Apps and Desktops – XenDesktop also offers server-hosted apps and desktops by leveraging Microsoft Remote Desktop Shared Hosted (RDSH) technology to enable multiple users to connect and share resources from a single server. This design guide showcases XenDesktop server-hosted resources from Windows Servers on vSphere.
- Remote Access – XenDesktop leverages Citrix NetScaler appliances to provide secure, remote access from any location. NetScaler can be a virtual or physical appliance, and this design guide highlights the implementation and configurations of NetScaler Gateway virtual appliances on vSphere.
So why showcase all the features and functionality of XenDesktop 7 on vSphere? Staying true to the Citrix vision, XenDesktop continues to remain the only hypervisor agnostic app and desktop virtualization solution – including VDI, virtual apps and more. This means XenDesktop 7 seamlessly integrates with any hypervisor including Microsoft Hyper-V, Citrix…
Continue reading here!
//Richard
#VMware, #vSphere 5.1 Hardening Guide – Official Release – via @douglasabrown
Thanks Douglas for sharing this info, and thanks Mike and all contributors!!!
Hi,
I’m pleased to announce to availabilty of the official release of the vSphere 5.1 Hardening Guide. The guide is being released as an Excel spreadsheet only. This guide follows the same format as the 5.0 guide.
All reference and documentation URL’s and code samples have been updated for 5.1. The guide is available below.
Please note: The permanent home for VMware security/hardening guides is located here:http://vmware.com/go/securityguides
This guide will move to that location soon.
Also availabe is a separate document containing the Change Log for the guide. The Change Log is available below.
Thanks to everyone who contributed feedback on…
Continue reading and downloading it here!
//Richard
#Citrix VDI-in-a-Box 5.2, now supports CloudGateway etc. – @VDIinaBox, @CitrixCG
Ok, now VDI-in-a-Box is becoming more and more “complete”! This release delivers some of the features many have wanted for a while! For instance the support of the latest hypervisors as well as CloudGateway!
Read more below taken from the Citrix blog post:
Version V5.2 is now ready for prime time. The focus of this release was to support the latest hypervisors and Citrix components. Actually we did a lot more because we added a few features that our users have been clamoring for.
Support for the latest hypervisors:
As always we need to stay current and so version 5.2 supports vSphere 5.1, XenServer 6.1 and Microsoft Hyper-V Server 2012. The latter should increase desktop density quite a bit. We’d love to hear your experiences along those lines. Please post on the forum what sort of density increases you are experiencing.
Unified access to VDI-in-a-Box desktops and your applications and data:
Version 5.2 now supports Citrix’s Cloud Gateway and allows you to access VDI-in-a-Box through it. Cloud Gateway provides a unified application and data store allowing you to access Windows, web, SaaS and Mobile applications seamlessly and so we felt it important that VDI-in-a-Box work with this application and data aggregation service.
Real-time collaboration with Microsoft Lync:
In addition, we support Microsoft Lync via the Citrix HDX RealTime Optimization Pack for Microsoft Lync. Now users can seamlessly participate in audio-video or audio-only calls to and from other HDX RealtTime users and other standards-based video desktop and conference room systems. This is especially good for call centers and the like who want wide ranging soft phone functionality with their virtual desktops.
Highly available Personal Desktops with PVD:
Many had asked that we provide some form of high availability for Personal (PVD) desktops. We provide this by allowing you to place PVD desktops on shared storage. Here’s how it works. You specify a third datastore which resides on shared storage and VDI-in-a-Box will honor this request and store all Personal desktops using PVD on it.
Turn old desktops into locked down thin clients:
Kids will be kids and so many school lab administrators have asked that we provide a way to lock down the devices used in their labs. Now, you can download the Desktop Lock from the VDI-in-a-Box download page on the Citrix web site. It will allow you to lock down the physical device and essentially turn your old desktops and workstations into a thin client that connects directly to VDI-in-a-Box and keeps the kids from doing any mischief.
Fully automated software update with our Touchless DTagent:
And since we’re always looking for ways to make things simpler, with V5.2, we now have a fully automated way for you to upgrade the VDI-in-a-Box software. We had two issues in the past. First, you had to manually install the VDI-in-a-Box desktop agent on a golden image (that is then used to stamp out multiple desktop instances). Second, when you upgraded the VDI-in-a-Box software, you had to manually update the agent on each existing golden image. In Version 5.1, we automatically install the agent on all new images. With V5.2, we now provide you a list of existing golden images whose agents need to be updated and once you click yes, we walk you through a wizard to automatically upgrade the agent and test the golden image. For more details on this, see the blog by David Liu: http://blogs.citrix.com/2013/01/22/viab-5-2-makes-updating-desktop-agents-easier/.
Continue reading here!
//Richard
Hyper-V 2008 R2 Planning Guide for XenDesktop 5.6 Now Available
Ok, another great blog post from Citrix!
“A key advantage of XenDesktop is that it works with three of the most common virtualization products on the market today – Citrix XenServer, Microsoft Hyper-V and VMware vSphere. However, each of these Hypervisors has a different architecture and feature set. Since each XenDesktop design will vary according to the Hypervisor chosen, we’ve created three separate Planning Guides:
- CTX134944: XenDesktop Planning Guide – Integration with Microsoft Hyper-V
- CTX132110: XenDesktop Planning Guide – Integration with Citrix XenServer
- CTX132166: XenDesktop Planning Guide – Integration with VMware vSphere
It’s been a while since the first XenDesktop Planning Guide for Hyper-V was released and we’ve learned a lot in that time. That’s why Ed Duncan and I have just finished a complete rewrite of the Hyper-V Planning Guide (CTX134944) with help from Alex Balcanquall, Michael Cooper, Tony Sanchez and Frank Anderson. In the new release, we’ve added and revised a number of key design decisions for Hyper-V, including:
- Which edition of Hyper-V should I choose? The pros and cons of each edition are discussed and recommendations are provided on which edition should be used to host XenApp servers, virtual desktops and infrastructure servers.
- How many physical networks will I need to attach to my hosts? Details are provided on the typical physical networks requirements for a Hyper-V host supporting XenDesktop including recommendations on traffic separation and which networks should be teamed.
- Which virtual machines should be hosted on a Failover Cluster? Recommendations are given based on whether the virtual machines are infrastructure servers, dedicated desktops, pooled desktops or XenApp servers.
- Should I enable Dynamic Memory? The Planning guide will explore the benefits from enabling Dynamic Memory and provide recommendations on how to optimize this technology.
- Should I use Provisioning Services (PVS) or Machine Creation Services (MCS) with Hyper-V? The Planning Guide also highlights important considerations when deciding between Provisioning Services or Machine Creation Services.”
Read more here!
//Richard
vCloud Architecture Toolkit (vCAT) 3.0 now available for download
Ok, this is interesting and a lot of people are sharing this right now! Read more and download it here!
“VMware is pleased to announce the release of the vCAT 3.0 material.
The VMware vCloud Architecture Toolkit provides technical and operational guidance for cloud success. It includes the tools and guidance to build, operate, and consume an industry-leading cloud computing infrastructure solution. Unlike a Reference Architecture which focuses on one use case, this architecture toolkit includes support for multiple use cases and combinations of use cases. It is based on field experience with hundreds of customers and partners. It is validated by internal and external individuals and is supported by VMware as the de-facto reference for vCloud deployments. This is offered free of charge.
The IT Melting Pot! 