Jase has a diverse career in technology over the past 25 years. As an IT pro, he has worked in academics, health insurance, & financials in positions ranging from administration, architecture, web development, curriculum development, to training. Before coming to VMware, he was a vSpecialist at EMC, supporting the Federal Government. He is a retired USAF MSgt, where he spent most of his military career in Communications. He is Co-Author of two virtualization books, is regularly designated as a vExpert, and is active on Twitter as @jasemccarty.

Recent Posts

vSAN Snippets: Reporting Drive Location & More

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An internal request came up asking for the ability to return the enclosure location of a vSAN disk. This information can sometimes be returned from the esxcli command utility, for some storage controllers, using the following command: esxcli storage core device physical get -d <device id> The resulting output looks something like this: Having to Read more...

vSAN Misconceptions: Drivers and Firmware Don’t Matter

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This is a guest post from Adam Sweetser, Senior Technical Support Engineer, vSAN GSS. Adam provides vSAN support to, and speaks with real customers day in and day out, about real-world issues.  vSphere is the enterprise-grade hypervisor that has been used to run business-critical workloads by more than 500,000 VMware customers for years. It is commonly Read more...

PowerCLI 11.2 Released, with more goodness for vSAN!

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PowerCLI 11.2 has now been released. The additions for vSAN include updates to some existing cmdlets. Storage Updates The cmdlets updated include: Get-VsanSpaceUsage, Get/Set-VsanClusterConfiguration, and Test-VsanNetworkPerformance. vSAN 6.7 Update 1 added the ability to estimate the amount of free capacity for a vSAN cluster using a selected Storage Policy in the UI: The Get-VsanSpaceUsage cmdlet can Read more...

PowerCLI Cookbook for vSAN

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As someone who started using PowerShell since the first release, it is one of my favorite tools. Before coming to work in the vendor space, PowerShell was my go-to tool for management at scale. As an administrator that spent a considerable amount of time working with Windows physical and virtual machines, PowerShell made uniform management Read more...

What’s New in vSAN 6.7 Update 1

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VMware vSAN is the market leader in HCI. One of the many driving forces that has helped solidify this position, is the rapid and continuous pace of innovation. VMware has always given customers the power of choice, and this continues into the hybrid cloud era. VMware’s digital foundation gives customers the ability, and flexibility to Read more...

More vSAN Cmdlets in PowerCLI 11!

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There’s a new release of PowerCLI, and it includes some more vSAN goodness! We’ve added some capabilities previously found in the Ruby vSphere Console and have also updated a couple of the existing modules   The new and updated cmdlets include: Get-VsanObject makes it easy to get information about a vSAN Object or a VM’s Read more...
Mixed MTU

Understanding Mixed MTU support in Stretched & 2 Node vSAN 6.7 U1 clusters with Witness Traffic Separation

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Witness Traffic Separation introduced the ability to tag “witness” traffic on an alternate VMkernel interface on vSAN data nodes. Witness Traffic Separation is the feature that enabled 2 Node “Direct Connect” in vSAN 6.5, and was also added to later editions of vSAN 6.2 (vSphere 6.0 Update 3 & higher). Some additional logic was added Read more...
Witness Consolidation

Understanding vSAN Witness Consolidation & 2 Node vSAN

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The vSAN Witness Appliance was introduced as a free alternative to using a physical ESXi host as a vSAN Witness Host. This appliance is only used for housing vSAN Object Witness Components, and is not allowed to run any virtual machine workloads. When deploying the vSAN Witness Appliance, there are 3 potential deployment options: Tiny, Read more...
vSAN Encryption

Understanding vSAN Encryption – KMS Profile Addressing

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When using vSAN Encryption, one of the vSAN Health Check tests will show the health of the connection between the vSAN Hosts and the KMS Cluster as well as vCenter and the KMS Cluster. One scenario came up a few weeks ago where the vSAN Health Check indicated that the vSAN Hosts could properly communicate Read more...