Nutanix Node Expansion Precheck Failed - Failure in pre expand-cluster tests. SSD tier on nodes is not sized to accomodate expected metadata growth on cluster kb-8842

The error is to be expected when existing older clusters with fullflash nodes are expanded with full-NVMe nodes. Typically, the NVMe Models are not listed in the Nutanix HCL file.

The new nodes includes NVMe SSDs witch are not llisted in the cluster HCL-file on the existing CVMs.

ssh to one of the new nodes and run:

list_disks

Example:

check HCL- File on one of the existing CVMs

cat /etc/nutanix/hcl.json

and check if the model is listed. If not, proceed with updating the hcl.json in

cd ~/foundation/lib/foundation-platforms/

backup:
sudo cp /etc/nutanix/hcl.json /etc/nutanix/hcl.json_backup copy the edited file: sudo cp ~/foundation/lib/foundation-platforms/hcl.json /etc/nutanix/hcl.json sudo chmod 644 /etc/nutanix/hcl.json

Restart Genesis:

allssh genesis restart