Doubt about how VMware hypervisor deals with storage disconnection

[vandreytrindade]

Hi,

I have some doubts of whats happens when the hypervisor lost connectivity with the virtual machine files.

e.g.

• Storage with 5 volumes
• 10 ESXi hosts with VMs stored in the storage

Here goes my questions:

• If the switch, that connects the hypervisor with the storage, goes down, what happens to the VMs?
• The operational system wasn't supposed to crash or something?

[vXav · Accepted solution]

Have a read at this article; VM Component Protection (VMCP) - VMware vSphere Blog

If the FC/iSCSI switch goes down your hosts will enter in an APD state.

Check the article for more details about this state and the response to it.

[vandreytrindade]

vXav,

Thanks!

But it's only on vSphere 6.0 and above?

We are using version 5.5...

[vXav]

In vSphere 5.5 you won't have vmcp.

So in case of Apd you need to recover the paths or reboot the host to trigger ha.

[vandreytrindade]

Thanks vXav!