Hello Community,
i have 3 Cisco Meeting Server vm's (2 as a CallBridge/WebBridge/XMPP Cluster and one only as DB).
so for the CMS-DB most things are clear: According to https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/uc_system/virtualization/virtualization-cisco-meeting-server.html this one needs 8 GB Ram and 8 vCPUs.
for the other CMS Server i want to allow 10 HD calls on every Server.
now According to https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/uc_system/virtualization/virtualization-cisco-meeting-server.html i would need:
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4+ (1 vCPU per 1.25 HD ports)
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4+ GB (1 per physical core)
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4 + 8 = 12 vCPU and 4 + 6 (2VCPU = 1 physical Core when hyperthreading enabled) = 10 GB
now when i read the most current Cisco-Meeting-Server-2-0-Installation-Guide-for-Virtualized-Deployments.pdf i see under
2.1.2 Host requirements for the Cisco Meeting Server as a VM deployment
Table 2: Recommended Core VM configurations
the last example is for 15 HD Ports i Need:
Single Intel E5-2640v2 = 16 vCPU, 8 GB Ram
let's say i put the CMS vm on this Server, whatever i calculate here it makes no sense
when i have the requirements in mind (for example:
pinning of all VMs on the host to specific cores and giving the Meeting Server sole use of
the assigned cores, and in addition, leaving a physical core with no VMs pinned to it for the
hypervisor.) So with this CPU i get 14(because 1 physical core for vmware ESXi) * 1,25 = 17,4 HD Ports, but for this i would Need 4 +7 = 11 GB Ram for the vm according to the web link above.
so this is really confusing.
so my questions:
1. how much vCPU and vRAM does CMS Need for 10 HD Calls (3rd Party Server, Hyperthreading enabled)
2. is there any command where i can see how much HD Calls is the CMS allowing from a Hardware perspective?
3. Why is on Hyper-V a Reservation and on VMWare a pinning of the CPU Ressources?
According to VMware a Reservation would make more sense for optimizing CPU delays.
