CUCM Cluster Capacity Questions

[robert-rittenhouse]

This might be a little hard to estimate but I have been looking for a general rule of thumb to go by when adding customers to our CUCM 8.5 cluster. We have a Publisher, Subscriber, and a Unity Box. I am having a hard time finding what kind of capacity the cluster can handle. We have been consistently adding new phones and I want to make sure that I am managing these correctly. I've asked my Cisco rep about a week ago but I haven't heard back yet.

Thanks

[Chris Deren]

It all depends on the hardware you are using and other parameters, i.e.

number of sites

number of GWs, circuit types

etc

etc

Cisco has some great calcs for that , should be able to locate it in SRND, though I do not recall if it is available to everyone or just partners. The online tool is being replaced with app, but it should still be available.

HTH,

Chris

[Rob Huffman · Accepted solution]

Hi Robert,

This great thread has links to the Sizing calculator and 8.x SRND

Thanks to Java, Gajanan & Alex!

https://supportforums.cisco.com/message/3503553#3503553

Cheers!

Rob