Permanent Device loss and All paths down impact on VM

Hi everyone,

I am reading  about PDL/APD as described by this link :

VMware Knowledge Base

I understand the difference between PDL and APD and the reasons these could happen. However, I am trying to understand what is the impact on VM when we do have such issues.

Will VM crash if it can not read/write to its hard disk ( read LUN behind a target)? will it just simply freeze if it can not read/write to its hard disk?

Thanks and have a good weekend!!