Latest Posts

How To Double Your VSAN Performance

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VSAN 6.0 is now generally available! Among many significant improvements, performance has been dramatically improved for both hybrid and newer all-flash configurations. VSAN is almost infinitely configurable: how many capacity devices, disk groups, cache devices, storage controllers, etc.  Which brings up the question: how do you get the maximum storage performance out of VSAN-based cluster? Read more...

Upgrading to VMware Virtual SAN 6.0

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Virtual SAN 6.0 introduced new changes to the structural components of its architecture. One of those changes is a new on-disk format which delivers better performance and capability enhancements. One of those new capabilities allows vSphere Admins to perform in-place rolling upgrades from Virtual SAN 5.5 to Virtual SAN 6.0 without introducing any application downtime. Read more...

VMware Virtual SAN 6.0 Now Generally Available

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Virtual SAN 6 – you heard about it in February… thousands of you read about it in Rawlinson’s blog post… and today you can get your hands on it. Virtual SAN 6 is now generally available (GA) – download your evaluation version today! For those of you who missed Rawlinson’s blog post describing the details Read more...

VMware Virtual SAN Alarms for vCenter Server with PowerCLI

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I was recently involved in a couple customer conversations where the main topics were focused on monitoring and troubleshooting events in vCenter particularly for Virtual SAN. I know that particular topic has been covered a few times in the past, not only on the VMware corporate storage blog but also by other community blogs. To Read more...

VMware Virtual SAN 6.0: Bootstorm Demonstration

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Since the official announcement of VMware Virtual SAN All-Flash architecture, most of the conversations have been focused about the solutions incredible performance capabilities and attributes with regards to IOPS, predictable performance, sub-millisecond latencies. All of those attributes are great and part of the reason as to why Virtual SAN 6.0 as a storage platform and Read more...

What’s All the Buzz About Software-Defined Storage?

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By now, you’ve more than likely heard something about Software-Defined Storage. With every mention of the term, you may be wondering, “What does it mean for me?” Wonder no longer! The VMware Software-Defined Storage approach enables a fundamentally more efficient operational model, driving transformation through the hypervisor, bring to storage the same operational efficiency that Read more...

vSphere Virtual Volumes Interoperability: VAAI APIs vs VVOLs

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In 2011 VMware introduced block based VAAI APIs as part of vSphere 4.1 release. This APIs helped improving performance of VMFS by providing offload of some of the heavy operations to the storage array. In subsequent release, VMware added VAAI APIs for NAS, thin provisioning, and T10 command support for Block VAAI APIs. Now with Read more...

VMware Virtual SAN: All-Flash Configuration

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The cat is officially out of the bag, as they say!. Everyone in the world should now be aware of the fact that VMware Virtual SAN 6.0 supports an all-flash architecture. I think it’s time to discuss a couple of items with regards to a new architecture. The Virtual SAN 6.0 All-Flash architecture uses flash-based Read more...

vSphere APIs for IO Filtering

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I’ve been fortunate to have one of our super sharp product line managers, Alex Jauch (twitter @ajauch), spend some time explaining to me one of the new enabling technologies of vSphere 6.0: VAIO.  Let’s take a look at this really powerful capability and see what types of things it can enable and an overview of Read more...