Category Archives: BC-DR

vSphere HA virtual machine failed to failover error on VMs in a partitioned cluster


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I received two questions this week around partition scenarios where after the failure has been lifted some VMs display the error message “vSphere HA virtual machine failed to failover”. The question that then arises is: why did HA try to restart it, and why did it fail? Well, first of all, this is an error […]

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Posted in 6.0, 6.5, 6.7, BC-DR, failure scenario, ha, Server, testing, VMware, vSphere | Comments Off on vSphere HA virtual machine failed to failover error on VMs in a partitioned cluster

How to test failure scenarios!


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Almost on a weekly basis, I get a question about unexpected results during the testing of certain failure scenarios. I usually ask first if there’s a diagram that shows the current configuration. The answer is usually no. Then I would ask if they have a failure testing matrix that describes the failures they are introducing, […]

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Posted in BC-DR, failure scenario, Server, Software Defined, Storage, test, testing, Virtual SAN, vmsc, VMware, vsan, vSphere | Comments Off on How to test failure scenarios!

HA Admission Control Policy: Dedicated Failover Hosts


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This week I received some questions on the topic of HA Admission Control. There was a customer that had a cluster configured with the dedicated failover host admission control policy and they had no clue why. This cluster had been around for a while and it was configured by a different admin, who had left […]

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Posted in admission control, BC-DR, failover host, ha, Server, vSphere | Comments Off on HA Admission Control Policy: Dedicated Failover Hosts

HA Admission control: How can I check how much reserved resources are used?


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I had this question twice in the past three months, so somehow this is something which isn’t clear to everyone. With HA Admission Control you set aside capacity for fail-over scenarios, this is capacity which is reserved. But of course VMs also use reservations, how can you see what the total combined used reserved capacity […]

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Posted in 6.0, 6.5, 6.7, admission control, BC-DR, Book, cloud, drs, ha, Server, u1, vSphere | Comments Off on HA Admission control: How can I check how much reserved resources are used?

HCI3041BU: Introducing Scalable File Storage on vSAN


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Another beta announcement last week for vSAN was around Native File Services. This was the topic of HCI3041BU, which was titled “Introducing Scalable File Storage on vSAN with Native File Services”. The full session can be found here, the summary is below for your convenience. The session was by Venkat Kolli (Product Manager) and engineers Rick […]

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Posted in BC-DR, cifs, Data Protection, file services, nfs, Server, smb, Software Defined, Storage, Virtual SAN, vsan | Comments Off on HCI3041BU: Introducing Scalable File Storage on vSAN

HCI1603BU – Tech Preview of Native vSAN Data Protection


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The second session I watched was HCI1603BU Tech Preview of Native vSAN Data Protection by Michael Ng. I already discussed vSAN Data Protection last year, but considering the vSAN Beta is coming up soon that includes this functionality I felt it was worth covering again. Note that the beta will be a private beta, so […]

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Posted in BC-DR, beta, Data Protection, Server, Software Defined, Storage, Virtual SAN, VMware, vsan, vsan dp, vSphere | Comments Off on HCI1603BU – Tech Preview of Native vSAN Data Protection

VMworld Video: vSphere 6.7 Clustering Deep Dive


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As all videos are posted for VMworld (and nicely listed by William), I figured I would share the session Frank Denneman and I presented. It ended up in the Top 10 Sessions on Monday, which is always a great honor. We had a lot of positive feedback and comments, thanks for that! Most importantly, it […]

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Posted in BC-DR, clustering, Data Recovery, deep dive, drs, ha, Various, vmworld, vSphere | Comments Off on VMworld Video: vSphere 6.7 Clustering Deep Dive

UI Confusion: VM Dependency Restart Condition Timeout


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Various people have asked me, and I wrote about this before in several articles but as part of a longer article which makes it difficult to find. When specifying the restart priority or restart dependency you can specify when the next batch of VMs should be powered on. Is that when the VMs are powered […]

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Posted in 6.7, BC-DR, dependency, priority, restart, Server, Various, VMware, vSphere | Comments Off on UI Confusion: VM Dependency Restart Condition Timeout

VMworld – VMware vSAN Announcements: vSAN 6.7 U1 and beta announced!


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VMworld is the time for announcements, and of course for vSAN that is no different. This year we have 3 major announcements and they are the following: VMware vSAN 6.7 U1 VMware vSAN Beta VMware Cloud on AWS new features So let’s look at each of these, first of all, VMware vSAN 6.7 U1. We […]

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Posted in 6.7, 6.7 u1, BC-DR, Data Recovery, Server, Software Defined, Storage, Virtual SAN, VMware, vsan | Comments Off on VMworld – VMware vSAN Announcements: vSAN 6.7 U1 and beta announced!

VMworld – VMware vSAN Announcements: vSAN 6.7 U1 and beta announced!


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VMworld is the time for announcements, and of course for vSAN that is no different. This year we have 3 major announcements and they are the following: VMware vSAN 6.7 U1 VMware vSAN Beta VMware Cloud on AWS new features So let’s look at each of these, first of all, VMware vSAN 6.7 U1. We […]

The post VMworld – VMware vSAN Announcements: vSAN 6.7 U1 and beta announced! appeared first on Yellow Bricks.

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Posted in 6.7, 6.7 u1, BC-DR, Data Recovery, Server, Software Defined, Storage, Virtual SAN, VMware, vsan | Comments Off on VMworld – VMware vSAN Announcements: vSAN 6.7 U1 and beta announced!