I have the following error when I try to reserve memory for a VM:

"Insufficient resources to satisfy configured failover level for HA"

I got some help in the VMware community figuring out why this error is displayed.

It turned out to be the that our VMware cluster is configured with the "default slot size" setting: Slot size 256 MHz , 4 Virtual CPUs, 221 MB.

Now when I'm setting up a couple of SLES VM's for ZCM with 6GB of reserved memory they fail to even power on due to that the slot size is calculated with only 221MB of RAM.

I've figured out what setting I need to change: das.slotMemInMB but I'm wondering what the implication would be when VMware recalculates the slot size with the new setting?