Virtualization Strategies for the CIO
Email Alerts
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FAQ: Virtual server clustering and the benefits of an HA cluster
If you want to ease VM management and server failover, create a virtual server cluster. Server clustering allows VMs to migrate to other hosts. FAQ
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Long-distance live migration moves within reach
Doing a long-distance live migration these days is a Herculean effort, but F5 Networks says it’s time is coming for mere mortals. News | 22 Nov 2011
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High-performance computers: Too much of a good thing?
With the power of today's high-performance computers comes great responsibility. Servers with outrageous resources could end up taking down your virtual machine infrastructure. Column | 18 Feb 2010
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Sun launches HPC products as Oracle takeover nears
Despite an uncertain future under Oracle, Sun Microsystems launched several high-performance computing hardware and software offerings this week. Article | 23 Jun 2009
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Microsoft OKs virtualized SQL Server clusters: News in brief
In an about-face, Microsoft will now support failover clustering for SQL Server instances running in a virtual machine. Article | 19 May 2009
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Physicians enlist virtualization to adopt electronic health records
To adopt electronic health records prescribed by the federal stimulus package, physicians are now using virtualization and cloud computing technologies. Article | 30 Apr 2009
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Egenera enhances PAN Manager, courts OEMs
Egenera Inc.'s PAN Manager virtualization software now includes features that enable it to be added to other management software suites, and OEMs have been courted as resellers. Article | 13 Jan 2009
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With virtualization, high-performance computing becomes more mainstream
Once confined to the backwaters of the computing industry, HPC has seen a renaissance, as managing large-scale virtual environments demands a similar skill set. Article | 23 Nov 2008
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VMworld 2008 kicks off with address from new CEO Paul Maritz
VMware's new CEO, Paul Maritz, gave his first keynote address at VMworld 2008 in Las Vegas, discussing new technologies for desktop and cloud computing, corporate partnerships and competing against Microsoft. Article | 16 Sep 2008
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Sun xVM hypervisor opens TACC supercomputer to developers
By running the Sun xVM Server hypervisor on a portion of its supercomputer, the Texas Advanced Computing Center will enable developers to test parallel applications on a virtual 4,000-node grid. Article | 10 Jul 2008
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Hyperic CloudStatus peers into Amazon's cloud
Hoping to allay IT managers' fears about cloud computing, Hyperic has released the CloudStatus service, which provides data on the performance and availability of Amazon's cloud. Article | 23 Jun 2008
- See More: News on Virtualized clusters and high-performance computing
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Configuring and provisioning production-ready SMB 3.0 storage
Yes, SMB 3.0 can go beyond test environments. But before you can take SMB 3.0 storage into production, there are a few things you need to tackle. Tip
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Using LXC to create virtual containers in SUSE Enterprise Linux
Creating virtual containers with LXC may trump hypervisor-based virtualization -- especially if you want to run multiple instances of the same OS. Tip
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New virtual data center design decisions with Hyper-V 3.0
IT pros are presented with new virtual data center design options, thanks to new feature in Hyper-V 3.0. So which architecture will you choose? Tip
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Using SCVMM PowerShell cmdlets to customize Hyper-V live migrations
SCVMM PowerShell cmdlets add granular flexibility to Hyper-V’s baseline Live Migration technology. These SCVMM cmdlets will improve performance and reduce administration effort. Tip
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Hardware migration: How server clustering can help you ditch old hosts
Getting rid of obsolete hardware is no easy task, but with a hardware migration, you can move VMs to new hosts with little downtime. Tip
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Virtual server cluster size: What’s the magic number?
Just because you can put a lot of hosts in a cluster doesn’t mean you should. Right-sizing a virtual server cluster is a difficult endeavor. Tip
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Server cluster sizing: How many VMs is too many?
Even server clustering has its limits. Hypervisors and hardware can restrict how many hosts and VMs a server cluster can hold. Tip
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Top six server load balancing gotchas
Virtual machine configurations can affect server load balancing. If you want resources balanced among your hosts, consider disk drives, affinity, storage and other factors. Tip
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Reserving cluster resources to boost high availability
It's easy to get caught up in the allure of high availability, but if you don't reserve unused cluster resources, virtual machines can experience downtime. Unused resources aren't wasted. Tip
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Server cluster high-availability gotchas: DNS and failover
Sometimes, high availability is a problem not a solution. Be on the lookout for numerous behaviors in a server cluster that can extend VM downtime after a failure. Tip
- See More: Tips on Virtualized clusters and high-performance computing
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Using VMware as a clustering product instead of Microsoft Cluster Server or Veritas
Is VMware a better option for clustering than Microsoft Cluster Server or Veritas? Ron Oglesby has an opinion in this expert response. Ask the Expert
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Would I get more users on physical or virtual servers?
Physical servers or virtual servers? Ron Oglesby shares his thoughts in this expert response. Ask the Expert
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Newbie VMware questions
No question is too "beginner" for our experts. In this answer, Anil Desai helps a reader learn some basics about using VMware and virtualization. Ask the Expert
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What are multi-core processors?
Wondering what multi-core processors actually are? Bernard Golden shares his knowledge on the subject in this expert response. Ask the Expert
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virtual machine (VM)
A virtual machine (VM) is an environment, usually a program or operating system, which does not physically exist but is created within another environment. In this context, a VM is called a guest while the environment it runs within is called a host.... Definition
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I/O fencing (input/output fencing)
I/O (input/output) fencing is the isolation of a malfunctioning node from a cluster's shared storage to protect the integrity of data. Definition
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How many virtual hosts should you put in a cluster?
VMware supports 32 virtual hosts in a cluster, and Hyper-V supports 16. But it's not always smart to reach these virtual server cluster sizing limits. Video
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Configuring and provisioning production-ready SMB 3.0 storage
Yes, SMB 3.0 can go beyond test environments. But before you can take SMB 3.0 storage into production, there are a few things you need to tackle. Tip
-
Using LXC to create virtual containers in SUSE Enterprise Linux
Creating virtual containers with LXC may trump hypervisor-based virtualization -- especially if you want to run multiple instances of the same OS. Tip
-
New virtual data center design decisions with Hyper-V 3.0
IT pros are presented with new virtual data center design options, thanks to new feature in Hyper-V 3.0. So which architecture will you choose? Tip
-
Using SCVMM PowerShell cmdlets to customize Hyper-V live migrations
SCVMM PowerShell cmdlets add granular flexibility to Hyper-V’s baseline Live Migration technology. These SCVMM cmdlets will improve performance and reduce administration effort. Tip
-
Long-distance live migration moves within reach
Doing a long-distance live migration these days is a Herculean effort, but F5 Networks says it’s time is coming for mere mortals. News
-
virtual machine (VM)
A virtual machine (VM) is an environment, usually a program or operating system, which does not physically exist but is created within another environment. In this context, a VM is called a guest while the environment it runs within is called a host.... Definition
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Hardware migration: How server clustering can help you ditch old hosts
Getting rid of obsolete hardware is no easy task, but with a hardware migration, you can move VMs to new hosts with little downtime. Tip
-
FAQ: Virtual server clustering and the benefits of an HA cluster
If you want to ease VM management and server failover, create a virtual server cluster. Server clustering allows VMs to migrate to other hosts. FAQ
-
How many virtual hosts should you put in a cluster?
VMware supports 32 virtual hosts in a cluster, and Hyper-V supports 16. But it's not always smart to reach these virtual server cluster sizing limits. Video
-
Virtual server cluster size: What’s the magic number?
Just because you can put a lot of hosts in a cluster doesn’t mean you should. Right-sizing a virtual server cluster is a difficult endeavor. Tip
- See More: All on Virtualized clusters and high-performance computing
About Virtualized clusters and high-performance computing
High-performance computing architectures, virtualized clustering and virtualization all enable data centers to improve server utilization efficiency and data center computing resource use and, potentially, reduce costs in their data centers. This section explores the latest news and research on HPC environments with virtualization, how to use virtualized Windows and Linux clustering, the benefits of HPC in terms of increased server utilization, reduced IT costs, and increased scalability as well as some of the central challenges of high-performance computing in terms of improving application performance and latency, fault tolerance concerns, and HPC management challenges, and some of the ongoing projects devoted to high-performance computing, such as the Beowolf project and Lawrence Berkeley National Laboratory.