Can a Nutanix Storage node contain more secondary VM copies than what would fit into the existing capacity on the cluster nodes disk? and if yes, how does one bring the storage node down for maintenance?
Best answer by DavidN
I believe, and might double check this w Support/Sales Engineers - in the situation you describe the VMs would continue to functions/run (no outage of them executing/reading/writing to disk) however the cluster’s resiliency would stay Critical (it doesn’t have enough pool capacity to write 2nd copies) until the storage heavy node is back up (i.e. couldn’t loose any additional disk/nodes/blocks).
This is one of the reasons why Storage-heavy nodes need to be added to a cluster in pairs, so storage un-balances during HA events don’t end up causing, “sufficient_disk_space_check” warnings.
Note that the number of storage heavy nodes may need to be more if you’re using RF=3