Changing Cluster Name and Physical Node Name for cDOT 9.1 Non disruptively

[Ontapforrum]

Hi,

I am sure changing Cluster & Node Name should be non-disruptive , but can someone who has done it or NetApp confirm the same ?

As far as SnapMirror is concenred, it happens via SVM, which which are not renaming at all. 

We just want to change the Cluster Name & Node Name.  

I am guessing, I will have to re-add the Cluster to : OCUM, as it was added via Hostname.

Thanks,

Ash

[Ontapforrum]

Changing cluster name can be done on the fly, it has no bearing on the sus-system tasks apart from it's Hostname entry in DNS and for OCUM.

However, I am concerend about the 'Node Name' change, as it has direct connection to Physical Disks, NDMP copy etc and any move opertion between Nodes ?

Can someone confirm it ?

[wareer]

1. Rename the Node:

cluster1::> system node rename -node node1 -newname node1_new

1. Node names should automatically update after up to a 5-minute delay:

cluster1::> system node show

Node      Health Eligibility Uptime Model Owner Location

------ ------ ----------- ------------- -------- ------ -------------

node1_new true true 89 days 23:47 MODELXX  Data Center 2

node2     true true 15 days 22:37 MODELXX  Data Center 2

Note: The operation is harmless for the system and can been change both names online.
https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/How_to_change_the_node_name_in_ONTAP_9