Unable to register PE in PC due to Blacklist / "The cluster is blacklisted on prism central."

 

You can view Blacklist (Prism Element) as follows and cleanup:

 

#logon to PE CVM
# retrieve blacklist ("Nodata" -> means a site is blacklisted)
zkcat /appliance/physical/blacklisted | strings

 

# clear blacklist
zkrm /appliance/physical/blacklisted

 

# retrieve blacklist (Zookeeper error: no node. means nothing blacklisted)
zkcat /appliance/physical/blacklisted | strings

You can view Blacklist (Prism Central) as follows and cleanup:

#logon to PC

zkcat /appliance/physical/blacklist

#Sample Output:

{

  "clusterUuid" : "xxxxxxxx-xxxx-xxxx-xxxx-000000012345",

  "clusterIncarnationID" : 123456789012345,

  "unregistrationCause" : "AOS_DECOMMISION"

}

#Check in PE Cluster Settings if UUid is "xxxxxxxx-xxxx-xxxx-xxxx-000000012345"

#if so cleanup with 

zkrm /appliance/physical/blacklist

#and check again:

zkcat /appliance/physical/blacklist

#Zookeeper error: no node. means nothing blacklisted.

Try again, registration should work now!

Be sure, you removed the clusters correctly and performed the cleanup!

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