Hi,
Is there any reason why you would not set the action to "Power off and restart VMs" when there is an PDL?
On the other hand I understand that with APD the issue might be temporary so leaving it to Disabled.
With regards to Host Isolation and in a vSAN cluster, heartbeats go via the same vSAN vmkernel, does this mean that an isolated host has lost access to the vSAN datastore?
Thanks
Couple of things, not sure if you are "only" using vSAN and also have traditional storage but:
I hope that helps. A lot of these things are discussed in my book by the way, which you can download for free here:
Couple of things, not sure if you are "only" using vSAN and also have traditional storage but:
I hope that helps. A lot of these things are discussed in my book by the way, which you can download for free here:
Yes it does thank you, good to know as since default is "Disabled" I was hesitant to change it apart for Host failure.
Have both vSAN and traditional storage so am summarizing the best practice/recommended HA settings below:
Host failure - Restart VMs
Host Isolation - Power off and restart VMs
Datastore with PDL - Power off and restart VMs
Datastore with ADP - Power off and restart VMs
Assume safe to change all these for existing live clusters also?
Thanks
Sure you can enable this when the cluster is running and has VMs running. No problem.
Quick note on the below one though:
Host Isolation - Power off and restart VMs
On vSAN cluster, as Duncan mentioned, Host isolation would be Power Off and restart VMs.
However, if you have a cluster with traditional storage and your management network is separate from VM network then you might want to consider leaving the VMs powered on.