Cisco Cisco TelePresence Video Communication Server Expressway 설치 가이드
Clustering for Resilience and Capacity
When clustering VM VCSs it is strongly recommended to use at least two physical hardware hosts – clustered VCSs
are designed to support resilience and capacity.
are designed to support resilience and capacity.
To support hardware resilience, VCS peers must run on at least two different hardware platforms.
Each and every VCS peer in a cluster must be within a 15ms hop (30ms round trip delay) of each and every other VCS
in or to be added to the cluster.
in or to be added to the cluster.
Migrating from a Physical Appliance to a VM
If you are migrating from a physical appliance to a VM VCS, the backup/restore process (Maintenance > Backup and
restore) can be used to transfer configuration between the two installations. You will receive a warning message,
but you will be allowed to continue.
restore) can be used to transfer configuration between the two installations. You will receive a warning message,
but you will be allowed to continue.
Supported Features
vMotion
If you need to move VCS to a new host you must perform a host migration via vMotion.
There may be glitches (packet loss/jitter) in media for calls that are interworked by VCS as the VM is moved. We
recommend that a vMotion move is carried out when there is low call activity on the VM VCS.
recommend that a vMotion move is carried out when there is low call activity on the VM VCS.
SAN with Fibre Interconnect
Use of a SAN with Fibre interconnect, rather than a NAS, is recommended in order to maximize the transfer speed.
Unsupported Features
VMware Fault Tolerant Mode
VMware fault tolerant mode is not supported (because the VCS uses multiple cores).
Licensing
VM VCSs require licensing in the same way that the appliance VCS units require licensing.
If you copy the VM, the VCS serial number will change and the existing license keys will be invalidated. If you need to
move VCS to a new host you must perform a host migration via vMotion.
move VCS to a new host you must perform a host migration via vMotion.
Security Hardening
Appendix 1: Troubleshooting
This section contains information to help in troubleshooting system issues.
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Cisco TelePresence VCS on Virtual Machine Installation Guide
Appendix 1: Troubleshooting