DR SITE Migration of CUC, UCCX and IMP

[AbteenZ]

HI,

We rented out a Datacenter and are trying to have redundancy for our current CUCM, IMP, CUC and UCCX cluster.

CUCM is easy and supported.

I wanted to know if we can vmotion or replicate the cluster nodes for IMP, cuc and uccx and re-ip them or should I break the clusters and build a new node per cluster.

Also is it possible to have 2 cluster per application? One 2 node cluster in HQ and a 2 node cluster in DR?

All the server are on version 11.5

Thanks,

[Flo.Matalis]

No, you need to add a new node on the cluster. Have you checked this link?

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/install/11_5_1/cucm_b_installation-guide-cucm-imp-1151/cucm_b_installation-guide-cucm-imp-1151_chapter_011.html#CUCM_TK_A9E74880_00

[Chris Deren]

If your CUC, IMP and CCX already have 2 nodes and you want to move one to DR site then vMotion/SCP migration and then re-IP ing is an option, but it would be much easier to simply decouple the servers from the cluster and add new Subs.  Keep in mind that CCX HA server is a licensed feature and if you only have 1 node today you would need to purchase it.

As far as second cluster for DR, it does not make sense as you would need to re-point all configurations, gateways, TFTP options, etc. at a time of DR.  If you have sufficient bandwidth and latency between your sites simply host backup nodes at the DR site.

[AbteenZ]

Thanks for the reply,

We have CCX HA licenses. 

Can you please explain the host backup solution? We have a gig of bandwidth between HQ and DR with 2ms of latency.

Thank you!

[Adam Pawlowski]

You can just shut it down and migrate it, or vMotion, that’s fine. Re addressing the clients is known with mostly a cluster restart needed.

CUC and CCX should replicate, UCM requires you to manage loads , moh , etc if you add a new sub, adjust pools etc.

I would just move it and change the IP via cli, then restart it so rhosts updates and it should be fine. I think there are tech notes on that subject to provide assurance on how to do this.