CUCM Unresponsive

[Matthew Puryear]

Hi All,

I'm trying to get into the Cisco voice world and learn CUCM. I have a demo that I've installed inside VMWare Workstation. I'm getting very high CPU utilization and absolutely no responsiveness. The CLI takes 20-30 minutes to load each line and the web GUI doesn't load at all (it times out). I tried installing VMWare tools last night and after 12 hours, nothing had happened. I think I've met all of the VM hardware requirements for CUCM. I've never touched CUCM before and I don't even know where to start to troubleshoot this. Any pointers?

Thanks!

[Deepak Rawat]

VMWare Workstation

That is your problem, it hardly works on it even thougg if you are matching the specs. I understand you might be doing this from a lab perspective but still it is cumbersome for CM or any other UC application to work properly on VM Workstation. You can try to increase the specs and see if it helps.

Regards

Deepak

[Matthew Puryear]

So I should be using ESXi instead? That seems like an easy enough solution. Thanks!

[Deepak Rawat]

Yeah if your hardware supports ESXi installation then that should be the best thing and then deploy VMs using the OVA template. Issue should not be there then.

Regards

Deepak

[Matthew Puryear]

Well that wasn't the problem. I'm now running in ESXi and I still have an unusable Call Manager. 20-30 minutes to load a single line of the CLI, and the web GUI doesn't load at all. Any other suggestions?

[Jaime Valencia]

Are you providing the VM with the resources it requires according to the OVA you're using??

[Matthew Puryear]

I've tried every combination of 2, 3, 4, 6, and 8 GB of RAM; 1, 2, and 4 CPU cores; and 80 and 120 GB of disk space (sparse and pre-allocated). Same result every time.

[Jaime Valencia]

OK, and does the host actually have those resources to do a 1:1 mapping???

[Matthew Puryear]

Yup it does.

[Jaime Valencia]

Are you using a supported CPU??

By default, after you turn on the server, it always takes about 15-25 minutes to finish starting all services, just making sure you're not actually doing all this while the server is still starting all services.

[Matthew Puryear]

It is an older computer so it might not be a supported CPU. Is that a Cisco issue or a VMWare issue? Is there a list of supported CPUs?

The VM has been up and consuming 100% CPU for about 4 hours now. I've let it run for as much as 18 hours and it doesn't help.

[Jaime Valencia]

There's both, one of what general VMWare deployments can use for ESXi, and one of the ones supported for Cisco apps.

http://docwiki.cisco.com/wiki/Unified_Communications_Virtualization

If it's not listed, it just might not work, or you'll run into issues as you've seen.