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Archive for the ‘vSphere’ Category



Enterprise Hypervisor feature comparison (RHEV added)

Wednesday, December 5th, 2012, by

Back by popular demand, the Enterprise Hypervisor feature comparison.

After the release of our latest comparison I’ve received a lot of requests to include RedHat’s RHEV to the comparison. Although I’ve never encountered it in enterprise environments, I decided to add it as a service to our readers.

I based the RedHat features on their 3.1 version which is in beta right now. This is because I’ve limited knowledge of the product and I received an updated comparison from one of our readers based on this version.

I hope you find the new Enterprise Hypervisor comparison useful and feel free to contact us when you have feedback for us to improve the list.

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NEW Enterprise Hypervisor comparison

Tuesday, September 25th, 2012, by

Two weeks ago VMware released the new version of their vSphere hypervisor, so it’s time to update our Enterprise Hypervisor comparison. It very impressive to see how quick VMware has reacted to the Hyper-V 3 announcements and has taken most of the wind out of the Microsoft sails.

I hope you find the new Enterprise Hypervisor comparison useful and feel free to contact us when you have feedback for us to improve the list.
The information on Microsoft Server 2012 Hyper-V features is very inconsistent, many different values out there.

In this version I added 10 new criteria. Many of these criteria should, in my opinion, be available in hypervisors suitable for enterprise environments.

You can find the new and improved Enterprise Hypervisor comparison here.

Last update Oct 1st: Changed Windows Server 2012 features (v4.2).

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VMware vSphere 5.1 available NOW

Tuesday, September 11th, 2012, by

At VMworld 2012 VMware announced the newest version of vSphere, version 5.1.
Today this new version is finally available! So, in DOLBY DIGITAL available NOW ;-)

You can download VMware vSphere 5.1 from the VMware download site.

If you’re wondering what’s new in vSphere 5.1, check out Alex’s article from August 27th.

One of the major changes is the disappearance of the vRAM limit for VMware vSphere 5.x.

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VMware Enhanced vMotion demo

Tuesday, August 28th, 2012, by

VMworld 2012 San Francisco / Barcelona

 

 

One of the most useful new features in VMware vSphere 5.1 is Enhanced vMotion. This new features enables customers to vMotion virtual machines to other hosts without the use of a shared storage solution. Check out the VMworld TV video below and watch a demo at the VMware Storage/vMotion booth.
 

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VMware releases version 5.1 of vSphere and vCloud Director

Monday, August 27th, 2012, by

 

 

Today VMware announced a whole list of new major releases of their product portfolio. A few big features up front? How about these:

  • No more vRAM limits, vRAM = GONE
  • vMotion without shared storage
  • the MonsterVM got even stronger, going for 64 vCPU’s, 1 TB of RAM and more than 1.000.000 IOPS per VM

(more…)

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StarWind Offers Free NFR Licenses for Lab Testing, Demonstration, and Training Purposes

Wednesday, June 13th, 2012, by

Starwind is an innovative company and one of the first to offer an iSCSI initiator on the Microsoft Windows platform without a lot of hassle. The company offers Not For Resale (NFR) licenses to some specific groups of IT professionals.

If you hold or are one of the following:

  • VMware vExpert
  • VMware Certified Instructor (VCI)
  • Microsoft Most Valuable Professional (MVP)
  • Microsoft Certified Trainer (MCT)
  • Citrix Technology Professional (CTP)
  • Citrix Certified Instructor (CCI).

you can get a free NFR license for its best-of-breed High Availability SAN solutions software to fuel your Lab. What do you need to do?

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Review: VCP5 Study Guide by Brian Atkinson

Monday, June 11th, 2012, by

A few months ago Erik and I passed our VCP-510 Exam, we used several different resources to get the job done. Several people asked us how to prepare for the VCP-510 exam. Fortunately Brian Atkinson a fellow vExpert, wrote a “small” book (almost 800 pages!!) as a study guide for everyone who wants to prepare for the exam and to get their VMware Certified Professional on vSphere 5 title. The book helps you prepare for this tough exam, it points out things you normally don’t touch in your daily work with vSphere.

While reading the book it felt like I was taken on a journey, from What is New in vSphere 5 to How to Plan, Install, Configure and Upgrade vCenter Server and VMware ESXi with this new version. But you aren’t finished after installing vSphere. Eye for details, like The way you secure vCenter Server and ESXi and how to Plan and Configuring vSphere Networking and Storage to get the most out of your installation, are unfolded. So you now have the basis and want to Create, Deploy and Manage VMs and vApps.

(more…)

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Set Timeout on Windows Guest OS to avoid Blue Screens/Errors

Wednesday, March 14th, 2012, by

Today I got another question about several Windows VMs breaking down and generating lots of errors after a SAN switch failed. The active paths switched through a path failover. I have seen this behavior before with several customers who use SAN storage and Windows for guest operating system in the VM. I sure had to dig around in my memory which setting to switch to 60 seconds. So I thought I would make this blog post for future references.

Path failover refers to situations when the active path to a LUN is changed from one path to another, usually because of some SAN component failure along the current path. A server usually has one or two HBAs and each HBA is connected to one or two storage processors on a given SAN array. You can determine the active path, the path currently used by the server, by looking at the LUN properties.

(more…)

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Installing the vCenter Server Virtual Appliance

Tuesday, March 13th, 2012, by

One of the things that has been on my to do list for a very long time was to check out the vCenter Appliance. I finally found the time to install the vCenter appliance in my own lab and fool around with it.

This post is a mix between my findings and some kind of installation instruction.

But first of all, what’s the VMware vCenter virtual appliance and what are the pro’s, cons and limitations.

The VMware vCenter virtual appliance is a SUSE Linux Enterprise Server 11 running VMware vCenter on a internal embedded DB2 database or an external Oracle database. The appliance is available for download on the VMware website and is configured with 2 vCPUs, 8GB RAM, LSI Logic SCSI controller, VMXNET 3 network interface and the VMware Tools.

The advantages over a traditional vCenter implementations are:

  • Lower TCO by eliminating Windows licenses;
  • Simple and rapid deployment;
  • Reduce operational costs – vCSA is easy to upgrade – deploy a new appliance, connect it to the external Oracle database or import configuration data from the previous installation.
The disadvantages are the same as the limitations.The vCenter Server virtual appliance has the same features as the Windows vCenter Server but does not support the following:
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Updated Enterprise hypervisor comparison

Tuesday, November 29th, 2011, by

During the last few years we published several Enterprise Hypervisor comparisons and we got very positive comments and feedback on it. With the release of vSphere 5, XenServer 6 and a service pack for Hyper-V it was time for an update.

It very interesting to see how some of the products have improved over the years and how the three major manufacturers look at each other and copy features. But you can’t trust all manufacturers by just a simple green checkbox. Some claimed features need third party add-ons, aren’t suitable for production workloads or are only supported on a limited set of operating systems. You have to investigate further and I hope I’ve done most of that work for you with this new enterprise hypervisor comparison.

(more…)

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Why can’t I run your OS on my virtual box, Steve?

Thursday, September 1st, 2011, by

Ever since I’ve been working on a Apple Classic II, many many years ago, I was caught by the way of thinking at Cupertino. Design combined with functionality was actually possible! Well, back then we thought it was beautiful, anyway :)

Now, many years have gone by, a lot of people in the world seem to have recently discovered Apple. With the consumerization of the IT business, more and more Macs appear in the landscape. And why not? Sleek design combined with a stable OS where you don’t waste performance and money on staying free from virii and other malware (at least, for now), who doesn’t want that? So, it’s logical that wishes and demands for a virtual server or desktop in the Windows world, also be true for OS X. With vSphere 5, this might be possible!

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How to: Upgrade to vSphere 5

Monday, August 15th, 2011, by

On July 12th, VMware announced the release of vSphere 5.

With the release comes the challenge to upgrade your existing installation.

However, there are a few caveats:

  • vSphere 5 is the first version which comes in a ESXi version ONLY! ESXi 5 is available in an embedded or installable version. If you’re running ESX 3.x or 4.x you should do a clean installation. You can find more information here.;
  • VMware changed their licensing method. Familiarize yourself with this and check if you need to upgrade/extend your licenses. You can find more information here.

Because I run a VMware vSphere 4.1 environment, this is a upgrade from vSphere 4.1 to 5.

The upgrade is a straight forward five step process.

(more…)

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vRAM licensing with VMware View

Thursday, July 14th, 2011, by

Since the announcement of VMware vSphere 5, the attention for the great new features has been swapped by the discussion on the new VMware vSphere 5 licensing model.

Because of the processor association it looks complicated and expensive but if you do the math, most of the time pricing remains the same. Gabrie van Zanten wrote an excellent article on that.

In short, with traditional virtual infrastructures used for server virtualization, the host servers seldom exceed the 96GB per host. This matches with a dual socket server licensed with VMware vSphere Enterprise Plus. In that scenario the number of vSphere 5 ‘processor’ licenses will equal the number of physical sockets, so the total cost for this environment will be equal with the new vSphere 5 licensing model.

But how about the new licensing model with memory dense servers/blades like we use in VDI solutions. When housing 100-200 VDI desktops on a single server you need immense amounts of memory and with the new vSphere 5 licensing model this would cost much much more that with the old licensing model.

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New VMware licensing explained

Tuesday, July 12th, 2011, by

With the introduction of VMware vSphere 5, VMware introduces a new licensing model. VMware will retain a per processor model but they  removed some restrictions which were in the vSphere 4 licensing model. This is mainly regarding the number of cores per processor and the amount of physical memory in a host on which vSphere 4 could be deployed. With vSphere 5 it does no longer matter how many cores or amount of memory a ESXi hosts has.

Instead of the physical restrictions, VMware introduces a single virtualization based entitlement of pooled virtual memory (vRAM). According to VMware, this will simplify the process of purchasing deploying and managing vSphere while facilitating the move to shared infrastructure as a service.

vSphere 5.0 will be licensed on a per-processor basis with a vRAM entitlement. Each vSphere 5.0 CPU license will entitle the customer to a specific amount of vRAM, or memory configured to virtual machines. The vRAM entitlement can be pooled across a vSphere environment to enable a true cloud or utility based IT consumption model.

The vSphere 5.0 licensing model is per processor with pooled vRAM entitlements. According to VMware, this should offer customers the following benefits relative to the previous vSphere 4 model:

Simplicity – Removes two physical constraints (core and physical RAM), replacing them with a single virtual entitlement (vRAM). Customers now have a clear path to license vSphere on next-generation hardware configurations.

Flexibility – Extends the concept of resource pooling from technology to the business of IT by allowing aggregation and sharing of vRAM entitlement across a large pool of servers.

Fairness – Better aligns cost with actual use and value derived,rather than with hardware configurations and capacity.

Evolution – Allows customers to evolve to a cloud-like “pay for consumption” model without disrupting established purchasing, deployment and license-management practices and processes.

 

In all fairness, with this VMware introduced the much criticized virtual machine based licensing ‘with a twist’. Because they now license based on the amount of allocated vRAM, you’re much more limited in the total number of deployed virtual machines than you where when you were limited by physical memory and processor cores.

I’m afraid this may backfire on VMware, especially when in competition with Microsoft or Citrix.

(more…)

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VMware announces vSphere 5

Tuesday, July 12th, 2011, by

Today VMware had planned a webcast named ‘Raising the bar. Part V’. It was a public secret that they were going to announce VMware vSphere 5 and indeed they did. But on top of that VMware also new released new versions of vCloud Director (1.5), vCenter SRM (5.0) and vShield (5.0).

To accomplish this VMware has spent more than a million hours engineering and two million hours of quality assurance to deliver hundreds of additional capabilities which eventually became VMware vSphere 5.

But why this new version of vSphere and additional products?
VMware acknowledges two large transformations taking place. First of all customers are looking for ways to reduce the infrastructure complexity. By using more automation they want to create infrastructures that are easier to operate with lower cost of operation. The second transformation is the consumer who is device independently connected to an information centric world. This is the post-PC age where the PC is no longer dominant and applications can no longer support the ‘Facebook generation’. They need a new platform to build new applications on.

VMware defined three stages, which we already saw at VMworld 2010, the IT Production stage, Business Production stage and finally the IT-as-a-service stage. In 2011 VMware moved well into the Business Production stage with 50% of all x86 workloads being virtualized, primarily on vSphere 4. But there is still 50% left, so we need to continue to accelerate to virtualize those workloads also. Bit in the meantime we need to amplify the value of the virtual infrastructure.

To do this, take the next step and move to the IT-as-a-service stage, VMware now announced their new flagship product, VMware vSphere 5.

(more…)

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How to: build an ESXi whitebox

Tuesday, June 7th, 2011, by

Last week I decided to buy a new lab server and I doubted between a HP or Dell mini server or an ESXi whitebox. Because most mini servers only have 8GB memory, I decided to collect specific parts to build my own VMware ESXi whitebox.

To find parts which are compatible with VMware ESXi 4.1, I used the following resources:

I chose a AMD Phenom II X6 processor, socket AM3 six core processor because it’s a lot cheaper than the Intel Core i-processors. As the basis I needed a AM3 socket motherboard and my selection criteria where simple, 16GB memory and onboard video.

As an ASUS fan I had to choose between the ASUS M4A88T and M4A88TD. Both can house 16GB of memory and have onboard video but the TD version has SATA 6Gbps. Because storage will most likely be the bottleneck, I decided to go for the M4A88TD-M but on the above sites there was no entry for this motherboard.

But Google is my friend so I searched for ‘M4A88TD’ in combination with ‘ESXi’. I found a few sites which mention an almost identical combination of motherboard, processor and ESXi 4.1. Eventually I took a gamble and ordered the ASUS M4A88TD-M/USB3.

The last two items where the simple ones, two sets of 8GB dual channel memory and a 6Gbps SATA disk.

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VMware is still the best!

Thursday, April 14th, 2011, by
Infoworld.com Virtualisation Shootout april 2011

Infoworld.com Virtualisation Shootout april 2011

Of course we all knew that already :) Paul Venezia posted an in depth article on Infoworld where he compares the four main server virtualization software competitors on a selection of criteria.

Now, you can nit-pick on the measurements he made or the criteria he has chosen, but in general I think it’s a solid test of up-to-date versions.

The best conclusions I can draw from his report are these:

VMware might not always be the cheapest, VMware might not always be the one with the highest speeds.. but VMware is still the one with the most diverse OS support (any x86 OS can be virtualized), the best management toolkit and the most reliable architecture.

 

(more…)

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VMware released vSphere 4.1 Update 1

Friday, February 11th, 2011, by

Tonight VMware released Update 1 for vSphere 4.1 and vCenter server 4.1.

Update 1 for ESX/ESXi contains a few new/improved features:

  • Enablement of Trusted Execution Technology (TXT) ESXi 4.1 Update 1 can be configured to boot with Intel Trusted Execution Technology (TXT). This boot option can protect ESXi in some cases where system binaries are corrupted or have been tampered with. TXT is currently available on Intel Xeon processor 5600 series servers.
  • Improvement in scalability — ESX 4.1 Update 1 supports up to 160 logical processors.
  • Support for additional guest operating systems Added support for RHEL 6, RHEL 5.6, SLES 11 SP1 for VMware, Ubuntu 10.10, and Solaris 10 Update 9 guest operating systems.
  • Inclusion of additional drivers ESX 4.1 Update 1 includes the 3ware SCSI 2.26.08.036vm40 and Neterion vxge 2.0.28.21239-p3.0.1.2 drivers.

Furthermore ESX/ESXi 4.1 Update 1 contains a lot of patches and fixes a list of issues.

(more…)

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