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

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...
traditional datastores

Understanding vSAN – Can it be used with Traditional or VVol Storage?

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On a call today this question came up: “Can vSAN be used with other storage?” This is a very common question, covered in the vSAN FAQ on storagehub.vmware.com, as well in other publicly facing VMware.com documentation. The answer is an absolute YES! A vSAN Cluster can also use traditional datastores and/or use VVols. This doesn’t mean that vSAN Read more...

Understanding vSAN Encryption – Booting when vCenter is Unavailable

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Since the introduction of vSAN Encryption in vSAN 6.6 some of the routine questions that get asked include: Do vSAN hosts get encryption key information from vCenter? What if vCenter is offline, is vSAN encryption impacted? What if vCenter is removed/replaced/not available, is vSAN impacted? The answers to these are pretty straightforward and easy to Read more...