Recovering from a full VSAN datastore scenario

Recovering from a full #VSAN datastore scenario (via cormachogan.com)

Recovering from a full VSAN datastore scenario

We had an interesting event happen on one of our lab servers this weekend. One of the hosts in our four node cluster hit an issue, which meant that the storage on that host was no longer available to the VSAN datastore. Since VSAN auto-heals, it attempted to re-protect as many VMs as possible. However, since we chose to ignore one of the health check warnings to do with limits, we ended up with a full VSAN datastore.


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Can I still provision VMs when a VSAN Stretched…

Can I still provision VMs when a #VSAN Stretched Cluster site has failed?

Can I still provision VMs when a VSAN Stretched…

A question was asked internally if you can still provision VMs when a site has failed in a VSAN stretched cluster environment. In a regular VSAN environment when you don’t have sufficient fault domains you cannot provision new VMs, unless you explicitly enable Force Provisioning, which most people do not have enabled.


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Top 5 Virtual SAN Posts From 2016 to-Date

Top 5 Virtual SAN Posts From 2016 to-Date

Top 5 Virtual SAN Posts From 2016 to-Date

Time doesn’t slow down for anybody, so it’s understandable if you miss some information here and there. Luckily, we’ve got you covered on Virtual Blocks. Take a look back on some of the most popular Virtual SAN posts from the past few months. What’s New-VMware Virtual SAN 6.2 On February 10th, we announced VMware Virtual SAN […] The post Top 5 Virtual SAN Posts From 2016 to-Date appeared first on VMware vSphere Blog .


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VSAN 6.2 Part 12 – VSAN 6.1 to 6.2 Upgrade Steps

#VSAN 6.2 Part 12 – VSAN 6.1 to 6.2 Upgrade Steps

VSAN 6.2 Part 12 – VSAN 6.1 to 6.2 Upgrade Steps

I’ve already written a few articles around this, notably on stretched cluster upgrades and on-disk format issues. In this post, I just wanted to run through the 3 distinct upgrade steps in a little more detail, and show you some useful commands that you can use to monitor the progress. In a nutshell, the steps are:


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VMware Virtual SAN Automated Deployments with…

VMware Virtual SAN Automated Deployments with PowerCLI

VMware Virtual SAN Automated Deployments with…

With the new release of Virtual SAN 6.2, the engineering teams have made significant efforts on increasing the product’s interoperability with Command Line tools, and deliver accessible APIs for just about everything on the product.


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Compare and Contrast – VSAN and VVols

Compare and Contrast – VSAN and VVols (via CormacHogan.com)

Compare and Contrast – VSAN and VVols

Earlier this month I had the opportunity to meet with a number of VMware customers in both Singapore and in the UAE. Most of the sessions were enablement and education type sessions, where there was a lot of white-boarding of VSAN (VMware’s hyper-converged infrastructure product) and Virtual Volumes (VVols – Software Defined Storage or SDS for the storage arrays). This wasn’t a sales session; I’m not in sales. The objective of these sessions was simply to educate. I guess when you are immersed in this stuff 24×7, it easy to fall into the trap of believing that everyone is well versed in this technology, and that’s simply not the case.


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Virtual SAN 6.2 – Deduplication And Compression…

Virtual SAN 6.2 – Deduplication And Compression Deep Dive

Virtual SAN 6.2 – Deduplication And Compression…

Virtual SAN 6.2 introduced several highly anticipated product features and in this blog, we’ll focus on some of the coolest ones: Dedupe & Compression. These features were requested by VMware customers and I am glad that we listened to the customer. When talking about Dedupe and Compression, one first needs to determine why an organization would want to use Dedupe & Compression and what these features actually do.


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VSAN Stretched Clusters – Click Click done!

VSAN Stretched Clusters – Click Click done! (via VSANteam.info)

VSAN Stretched Clusters – Click Click done!

Creating Stretched Clusters could not be easier with VSAN. In fact the process of configuring different types of VSAN clusters, with features like deduplication and compression enabled is now a snap in the new Configuration Wizard.


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VMware VSAN: When good enough more than passes…

VMware VSAN: When good enough more than passes muster (via The Register)

VMware VSAN: When good enough more than passes…

Last week I attended SFD9 and the last session of the week was with VMware about VSAN 6.2. This is not a review of the product or an analysis about single features; there are plenty of them already. Instead I’ll talk about what a product like VSAN 6.2 means for the entire SDS/HCI market.


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VSAN 6.2, checksumming where you should

VSAN 6.2, checksumming where you should

VSAN 6.2, checksumming where you should

Today I was talking to a customer about the checksum functionality that is part of VSAN 6.2. They asked me if VSAN was still prone to bit rot scenarios, and they mentioned other potential bottlenecks like no data locality… It was fairly straight forward to set it straight as with VSAN 6.2 we do have a “host local read cache” and we checksum all data by default on write and on read, and yes we also scrub the disk to pro-actively detect potential issues.


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VSAN Health checks disabled after upgrade to…

VSAN Health checks disabled after upgrade to vCenter 6.0 U2

VSAN Health checks disabled after upgrade to…

Advertise here with BSA Yesterday at the Dutch VMUG I was talking to my friend @GabVirtualWorld. Gabe mentioned that he had just upgraded his vCenter Server to 6.0 U2 in his VSAN environment, but hadn’t upgraded the hosts yet. Funny enough later someone else mentioned the same scenario and both of them noticed that the VSAN Health Checks were […] “VSAN Health checks disabled after upgrade to vCenter 6.0 U2” originally appeared on Yellow-Bricks.com. Follow me on twitter – @DuncanYB.


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Simulate A Delay To Test And Validate VSAN…

Simulate A Delay To Test And Validate VSAN Stretched Cluster (via Virtual Blocks)

Simulate A Delay To Test And Validate VSAN…

Since the inception of Virtual SAN Stretched Cluster many current and potential Virtual SAN users have grappled with how to validate Stretched Cluster given the high cost and difficulty with setting multiple networks across geographically distributed sites without impacting production environments. The purpose of this blog is to address these concerns.


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Getting started with the new VSAN 6.2…

Getting started with the new VSAN 6.2 Management API (via virtuallyGhetto)

Getting started with the new VSAN 6.2…

As I have previously written, with the release of VSAN 6.2 (vSphere 6.0 Update 2), a new VSAN Management API has been introduced which allows developers, partners and administrators to automate all aspects of VSAN functionality including: complete lifecycle (install, upgrade, patch), monitoring (including RVC and VSAN Observer capabilities), configuration and troubleshooting. Simply put, anything that you can do from the vSphere Web Client UI or the RVC CLI from a VSAN standpoint, you will be able to completely automate using one of the four new VSAN Management SDKs: Python, Ruby, Java and C#.


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VSAN 6.2 – Price Changes for Service Providers!

VSAN 6.2 – Price Changes for Service Providers!

VSAN 6.2 – Price Changes for Service Providers!

Who said big corporations don’t listen to their clients! VMware have come to the party in a huge way with the release of VSAN 6.2…and not only from a technical point of view. Ever since the release of VSAN the pricing structure for vCloud Air Service Provider partners has been off the mark in terms of the commercial viability in having The post VSAN 6.2 – Price Changes for Service Providers! appeared first on VIRTUALIZATION IS LIFE! .


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VMware Virtual SAN 6.2 GA!!!

VMware Virtual SAN 6.2 GA!!!

VMware Virtual SAN 6.2 GA!!!

Categories: Cool Stuff!, Virtual SAN Tags: VSAN Alright!!! it is one of those exciting weeks where VMware releases new products and goodies for all its customers. Along with vSphere Update 2, VMware has officially releasedthe latest and greatest version of Virtual SAN. There are so many great capabilities, features, and improvements in the 6.2 release that are absolutely worth […] (Read more…) The post VMware Virtual SAN 6.2 GA!!! appeared first on Punching Clouds.


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Virtual SAN 6.2 Is Now Generally Available!

VMware Virtual SAN 6.2 Is Now Generally Available!

Virtual SAN 6.2 Is Now Generally Available!

I am excited to announce the availability of VMware Virtual SAN 6.2, the 4th edition of the radically simple, vSphere-embedded storage solution that is powering HCI solutions at over 3,000 customers! Get your hands on it today by downloading an evaluation copy and see for yourself why VMware Hyper-Converged Software—the combination of Virtual SAN, vSphere and vCenter Server—is one of the most popular and fastest growing software platforms for Hyper-Converged Infrastructure (HCI).


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Compare and Contrast – VSAN and VVols -…

Compare and Contrast – VSAN and VVols – CormacHogan.com

Compare and Contrast – VSAN and VVols -…

Earlier this month I had the opportunity to meet with a number of VMware customers in both Singapore and in the UAE. Most of the sessions were enablement and education type sessions, where there was a lot of white-boarding of VSAN (VMware’s hyper-converged infrastructure product) and Virtual Volumes (VVols – Software Defined Storage or SDS for the storage arrays). This wasn’t a sales session; I’m not in sales. The objective of these sessions was simply to educate. I guess when you are immersed in this stuff 24×7, it easy to fall into the trap of believing that everyone is well versed in this technology, and that’s simply not the case.


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