The Virtualization Room

January 30, 2012  9:18 PM

Virtualization skills pay the bills – or do they?

Beth Pariseau Beth Pariseau Profile: Beth Pariseau

Tech professionals enjoyed their largest annual salary growth since 2008, according to a report released by Dice last week, but cloud and virtualization skills were not among the most fortunate.

After two straight years of wages remaining nearly flat, tech professionals on average garnered salary increases of more than two percent, boosting their average annual wage to $81,327 from $79,384 in 2010.

Virtualization as a skill also saw jumps in pay, up six percent to $86,669.

Continued »

January 23, 2012  3:49 PM

VMware VSA capacity increases with new RAID requirements

Beth Pariseau Beth Pariseau Profile: Beth Pariseau

The vSphere Storage Appliance (VSA) released with vSphere 5 now supports more usable capacity per host thanks to relaxed RAID requirements, according to a VMware blog post.

RAID, or Random Array of Independent Disks, refers to the way data is striped and / or mirrored across disks to achieve redundancy. Higher RAID levels afford better data protection, but can eat up more disk capacity. Previously, the VSA required RAID 10, which offers high levels of data protection, but contributed to a 75% capacity overhead for the overall VSA.

Now, the VSA supports RAID 5 or RAID 6, which use fewer disks for data protection, resulting in more available capacity for users.

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January 20, 2012  4:55 PM

VMware previews cloud-based customer lab at NEVMUG

Beth Pariseau Beth Pariseau Profile: Beth Pariseau

VMware officials unveiled a new offering designed to help IT pros run proof-of-concepts in the cloud at yesterday’s well-attended New England VMware User Group Winter Warmer at Gillette Stadium.

The new program, called Virtual Customer Labs, will use the same underlying technologies as the Hands-on Labs at VMworld, according to a lunch session presented by Josh Liebster, a systems and sales engineer for VMware. It will allow users to test various VMware products “without having to worry about any Active Directory mishaps or storage being misconfigured.”

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January 18, 2012  7:27 PM

Shoring up vCenter in Auto Deploy environments

Beth Pariseau Beth Pariseau Profile: Beth Pariseau

One example of the growing criticality of vCenter comes with vSphere 5’s Auto Deploy feature. In certain disaster scenarios, its dependency on vCenter can send users down a ‘rabbit hole’ of availability issues if the environment is not designed correctly, experts say.

Auto Deploy can be used to deliver host and VM configuration information across the network, while an Auto Deploy server manages state information for each host. It stands to be most appealing in large environments where quick deployment of new VMs is a must.

In an environment where vCenter, the vCenter database and the Auto Deploy server are all virtualized in the same vCenter datacenter, and all hosts and VMs are totally reliant on Auto Deploy for their state information, Auto Deploy cannot set up vSphere Distributed Switches (vDS) if vCenter Server is unavailable. If the host can’t connect to vCenter Server, it remains in maintenance mode and virtual machines cannot start.

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January 10, 2012  8:32 PM

Whither VXLAN?

Beth Pariseau Beth Pariseau Profile: Beth Pariseau

I’ve been looking more deeply into the proposed IETF standard VXLAN of late, but my reading has left me with more questions than answers.

VXLAN, or Virtual eXtensible LAN, submitted to IETF last fall and talked up at last year’s VMWorld, is a protocol for routing Layer 2 traffic over Layer 3 networks, with the goal of either expanding the available VLAN address space, or supporting inter-data center VM mobility, depending on who you ask. It’s also important to note that VXLAN, for now, is still a proposed standard that remains largely theoretical.

Recently, a blog post by Scott Lowe caught my interest by pointing out some key differences between VXLAN and Cisco’s Overlay Transport Virtualization (OTV) protocol, which also encapsulates layer 2 frames in layer 3 packets. Continued »

January 10, 2012  8:25 PM

Virtualization in 2012: Automation on the horizon

Beth Pariseau Beth Pariseau Profile: Beth Pariseau

The following is an expansion on our 2012 predictions piece on virtualization management, which ran on last week.

As server virtualization becomes mainstream, vendors like VMware have to come up with a new return on investment (ROI) proposition to sell to customers, and experts say to be on the lookout for a new sales pitch around automation and operational savings.

“The purpose of automation is to create a new hard-dollar ROI for virtualization, basically opex savings by streamlining operations, as opposed to the old ROI which was capex savings that came from server consolidation,” said Bernd Harzog, analyst with The Virtualization Practice.

Consolidation ratios won’t be as high as mission-critical apps are virtualized, and so “in order for the virtualization freight train to keep rolling down the tracks, VMware needs a second, new incremental hard dollar ROI,” he said. “That’s going to come from this automation-driven opex savings delivered by vCenter Operations. And that’s going to shake up the management software industry in an extremely profound way.”

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December 19, 2011  6:38 PM

VKernel throws down automation gauntlet for VMware

Beth Pariseau Beth Pariseau Profile: Beth Pariseau

With today’s release of version 4.5 of its vOps management software, Quest subsidiary VKernel is challenging VMware to an infrastructure automation duel.

“[Paul] Maritz from VMware has been discussing automation for the better part of a year,” said Alex Rosemblat, product marketing manager for VKernel. With vOps 4.5, Rosemblat claims, “we’re really starting to deliver on the future vision that VMware has laid out.”

An example of VKernel’s first foray into capacity management automation in vOps 4.5 is ‘Zombie VM’ deletion – the automatic removal of VMDK files deemed waste by the software. By default, vOps marks a VMDK as waste if it has no connection to anything in vCenter and has been sitting in storage for more than 90 days. Users can also customize these criteria.

“What users have had to do in the past, after they receive this list of waste files, is go through and manually find these waste files and delete them,” Rosemblat said. “If you have a couple hundred files, that can turn into several hours’ worth of work. We can do that basically with the click of a button.” In the next release, users will be able to schedule Zombie VM deletions.

Other new automation features introduced with 4.5 include snapshot auto-merge, and more “one-click issue remediation” similar to waste file deletion, but for memory limit sizing. Previously, vOps could address memory allocated to particular VMs, but not memory limits, another setting within vSphere which restricts the amount of allocated memory a VM actually uses. This release adds visibility and automated remediation for memory limits to existing support for memory allocations. vCPU sizing is also supported with this release, in addition to physical CPU resource sizing.

Also new with this release: a new way of doing reports designed to shave down the amount of time admins spend on this task. Now, an extended custom URL generation process allows admins to send management a link that shows a real-time view of the environment, rather than repeatedly generating and sending reports.
Finally, vOps 4.5 also includes the ability to forecast how much hardware will be needed to support an environment based on the current growth rate; common trend alarm warnings delivered by default; application type tags and resource sizing configuration groups; plus vSphere 5 and raw device mapping (RDM) support.

“VMware’s strategy for operations management is to combine performance management, capacity management, [and] configuration management…with the self-learning analytics that came with Integrien for the purpose of automating IT operations,” said Bernd Harzog, analyst with The Virtualization Practice. “Quest is coming out of the gate, in terms of a response [to VMware], better and faster than anybody else in the ecosystem.”

But it’s still too early to pick a winner in this race, Harzog said. “Right now we’re on chapter one of a twenty-chapter book.”

December 7, 2011  5:05 PM

VMware sneaks out vCenter Chargeback 2.0

Beth Pariseau Beth Pariseau Profile: Beth Pariseau

With little fanfare, VMware introduced version 2.0 of its chargeback tool last week, and the release notes include more “known issues” than new features.

vCenter Chargeback has been renamed Chargeback Manager and folded into the vCenter Operations suite. According to the release notes issued Nov. 30, version 2.0 contains more than a dozen new features, including support for vSphere 5.0 and vCloud Director 1.5.

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November 29, 2011  8:20 PM

VMware gets in on Puppet show

Beth Pariseau Beth Pariseau Profile: Beth Pariseau

VMware has joined Google and Cisco as a new investor in Puppet Labs, according to a press release issued today.

VMware was one of the investors that contributed to an $8.5 million round of funding for the IT systems automation software maker, bringing Puppet’s total funding to $15.75 million since its founding in 2005.

Puppet’s software, available as both an open source offering and in a commercial version called Puppet Enterprise, automates provisioning of VMware and Amazon EC2 instances in enterprise IT environments. IT shops have also used the open-source version of Puppet to increase server-to-admin ratios. Demand for experience with Puppet’s software has grown rapidly in the last year, according to a Wall Street Journal report.

VMware and Cisco “have hands-on, in-production-at-scale experience with Puppet – in some cases, going back several years,” wrote Puppet founder Luke Kanies in a blog post on the funding round.

November 28, 2011  4:58 PM

VMware patches iSCSI bug in vSphere 5

Beth Pariseau Beth Pariseau Profile: Beth Pariseau

The first patch for vSphere 5 has been issued, a fix for a bug that was causing long boot times for virtual machines attached to iSCSI storage systems.

The issue affected vSphere 5 virtual machines connected through software-based iSCSI initiators, and occurred, according to VMware’s Knowledge Base, because “ESXi 5.0 attempts to connect to all configured or known targets from all configured software iSCSI portals. If a connection fails, ESXi 5.0 retries the connection 9 times.”

According to the Knowledge Base article, “VMware is delivering an ISO file for this patch release due to the nature of this issue. This is not common practice and is only done in special circumstances.”

In some cases, this bug led to boot times of up to 90 minutes. Bill Hill, infrastructure IT lead for a Portland-based logistics company, said it took some of his servers that long to boot with the buggy version of ESXi 5.0.

This would be an open-and-shut case of a simple bug fix, Hill said, but it remains a mystery to him, as well as to some VMware insiders, why the original buggy ISO file remains available for download on VMware’s website as of today.

“It’s a frustrating situation,” said Hill. “Why leave a time bomb out there?”

VMware’s PR representatives did not have an official response as of this post.

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