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checksum DRS erasure coding ESXi S3 VMware VSAN vSphere vSphere HA

Minio S3 object store deployed as a set of VMs on vSAN

Some time back, I looked at what it would take to run a container based Minio S3 object store on top of vSAN. This involved using our vSphere Docker Volume Server (aka Project Hatchway, and the details can be found here. However, I wanted to evaluate what it would take to scale out the Minio […]

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deduplication DRS Encryption stretched cluster VMware VSAN vSphere HA witness host

What’s new in vSAN 6.6?

vSAN 6.6 is finally here. This sixth iteration of vSAN is the quite a significant release for many reasons, as you will read about shortly. In my opinion, this may be the vSAN release with the most amount of new features. Let’s cut straight to the chase and highlight all the features of this next […]

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Networking Storage VMware VSAN vSphere vSphere HA

Debunking some behavior “myths” in 3 node vSAN cluster

I recently noticed a blog post describing some very strange behaviors in 2-node and 3-node vSAN clusters. I was especially concerned to read that when they introduced a failure and then fixed that failure, they did not experience any auto-recovery. I have reached out to the authors of the post, just to check out some […]

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checksum erasure coding stretched cluster VMware VSAN vSphere HA

Check out the new VSAN 6.2 Hands-On-Lab

HOL-SDC-1608, our VSAN hands-on-lab, has been updated for VSAN version 6.2. This lab contains a bunch of new VSAN 6.2 features including erasure coding (RAID-5/6), checksum, sparse swap and dedupe/compression. You can also see the new health check views, performance metric views and capacity views. Also included is a workflow that will guide you through […]

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DRS VMware VSAN vSphere vSphere HA

DRS and VM/Host Affinity Groups in VSAN Stretched Cluster

In a previous post, I talked about how vSphere HA is used extensively in VSAN Stretched Cluster. The primary purpose of vSphere HA is to restart virtual machines in the event of a failure. However to ensure that the restarted virtual machines continue to perform optimally, and to continue using a warmed cache, I mentioned […]

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Flash Storage Uncategorized vMotion VMware VSAN vSphere vSphere HA

Read locality in VSAN stretched cluster

Many regular readers will know that we do not do read locality in Virtual SAN. For VSAN, it has always been a trade-off of networking vs. storage latency. Let me give you an example. When we deploy a virtual machine with multiple objects (e.g. VMDK), and this VMDK is mirrored across two disks on two […]

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Storage VMware vSphere vSphere HA

vSphere 6.0 HA and Component Protection with vMSC

I had a query recently about changes to vSphere 6.0, especially when it comes to vSphere HA and Component Protection (VMCP) with vMSC, vSphere Metro Storage Cluster. The question is very straight forward – do all the same advanced setting recommendations for PDL and APD apply to vMSC on vSphere 6.0 as they did for […]