strange behavior of auto start of VMs in a pool - bug or feature ?

[Pilow]

Hi there,

Latest XOA, latest XCP Patchs; but this pre existed it's not a new behavior.
no HA involved.

We have a pool of 3 hosts. Some VMs have the AUTO POWER ON enabled in the advanced tab.
We noticed that at every reboot of a server of this pool :

• VMs with auto power on that are currently halted DO START

-->this is not a wanted behavior for VMs that were purposedly manually halted.

I thinked the AUTO POWER ON switch as a "host must restart the VM in case of power loss and the VM was previously running"

so we get surprised each time we reboot a host, was it for simple maintenance or RPU when patches are applied.
when we do a RPU, we manually shutdown some minor VMS, to speed up the evacuate process involved, but each time a host reboots, the VMs start up annoying

perhaps do we have a bad usage of pool's ADVANCED tab of auto start ?

auto power on is enabled on the pool AND at the VM level.

Could someone explain what is the difference ?
Perhaps to resolve the behavior we just hve to disable auto power on at the pool level ?!

[Pilow]

mmm there is a POWER ON mode switch also on the host level in advanced TAB (disabled in my case)

so what is the expected behavior of these 3 switches ?

• on pool advanced tab
• on host advanced tab
• on vm advanced tab

[olivierlambert]

On pool it's a kind of shortcut to enable it on all hosts. On VM, it allows you to decide which VM will start automatically or not.

[Pilow]

@olivierlambert so strange though. i have it enabled on 4 pools, that didn't propagte on hosts.

still VM boots up when not needed as explained on fist post of the thread.

i'll try différent combinations to see what's really going on