Cisco IM&Presence 11.5.1 cluster - reinstall nodes

marco_81 — Wed, 24 Jun 2020 19:36:23 GMT

Hi all,

my deployment is made of:

- Cisco CUCM 11.5.1 cluster, one Publisher and one Subscriber (it's a working cluster serving device phones).

- Cisco IM&Presence 11.5.1 cluster, one Publisher and one Subscriber (it's not serving any client, and a fresh installation is preferred).

IM&Presence nodes were added in Cisco Unified CM Administration > System > Server as per installation guide.

I have been asked to remove (delete) the Cisco IM&Presence 11.5.1 cluster (Pub+Sub) and install again, because of database replication unrecoverable errors.

I followed some guides, and the procedure should be this:

- To reinstall an IM and Presence Service database publisher node:

1) Power down the IM and Presence Service subscriber node

2) Delete the subscriber node as follows:

Unassign all users that are assigned to each of the IM and Presence Service subscriber nodes. (Select Cisco Unified CM Administration > User Management > Assign Presence Users).
Remove the subscriber nodes from their presence redundancy groups. (Select Cisco Unified CM Administration > System > Presence Redundancy Groups).
Delete the subscriber nodes from the Unified Communications Manager server list. (Select Cisco Unified CM Administration > System > Server

3) Power down the IM and Presence Service database publisher node.

4) Delete the IM and Presence Service database publisher node as follows:

Unassign the users that are assigned to the IM and Presence Service database publisher node. (Select Cisco Unified CM Administration > User Management > Assign Presence Users).
Remove the node from the presence redundancy group. (Select Cisco Unified CM Administration > System > Presence Redundancy Groups).
Delete the IM and Presence Service database publisher node from the Unified Communications Manager server list. (Select Cisco Unified CM Administration > System > Server).

5) Readd the IM and Presence Service database publisher node to the Unified Communications Manager server list.

Perform a fresh install of the IM and Presence Service database publisher node.
Readd the IM and Presence Service subscriber nodes to the Unified Communications Manager server list.
Perform a fresh install of each subscriber node

- To reinstall an IM and Presence Service subscriber node:

Power down the IM and Presence Service node.
Delete the subscriber node as follows:
1. Unassign the users that are assigned to the node. (Select Cisco Unified CM Administration > User Management > Assign Presence Users).
2. Remove the node from the presence redundancy group. (Select Cisco Unified CM Administration > System > Presence Redundancy Groups).
3. Delete the node from the Unified Communications Manager server list. (Select Cisco Unified CM Administration > System > Server)
Readd the IM and Presence Service node to the Unified Communications Manager server list.
Perform a fresh install of the node.

I took these steps from IM&P 12.5 guide, is this the same for 11.5.1?

Do i need to reboot CUCM Publisher (in maintanance window) after deleting IM&P nodes from Cisco Unified CM Administration > System > Server?

Do i need to open a TAC to remove IM&P nodes from CUCM and perform a fresh installation of IM&P cluster?

Please help.

Re: Cisco IM&Presence 11.5.1 cluster - reinstall nodes

Mike_Brezicky — Thu, 25 Jun 2020 11:06:07 GMT

These steps should be accurate, but I would still add the CUCM cluster reboot inbetween the removal of the IMP cluster and adding a new one. This may not be needed, but I always felt its better to work from a clean reboot after doing something such as adding / removing servers / applications.

topic Cisco IM&Presence 11.5.1 cluster - reinstall nodes in Collaboration Applications

Cisco IM&Presence 11.5.1 cluster - reinstall nodes

Re: Cisco IM&Presence 11.5.1 cluster - reinstall nodes