Cisco Unified Contact Center Enterprise Solution Reference ...
Cisco Unified Contact Center Enterprise Solution Reference ...
Cisco Unified Contact Center Enterprise Solution Reference ...
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Chapter 10 Sizing <strong>Cisco</strong> <strong>Unified</strong> CallManager 4.x and 5.x Servers<br />
OL-8669-05<br />
<strong>Cisco</strong> <strong>Unified</strong> CallManager Servers<br />
In deployments with multiple IP IVRs, <strong>Cisco</strong> recommends associating those servers with different<br />
CTI Managers on different subscriber nodes in order to better balance call processing across the<br />
cluster.<br />
<strong>Cisco</strong> <strong>Unified</strong> CallManager CPU resource consumption varies, depending on the trace level<br />
enabled. Changing the trace level from Default to Full on <strong>Cisco</strong> <strong>Unified</strong> CallManager can increase<br />
CPU consumption significantly under high loads. Changing the tracing level from Default to No<br />
tracing can decrease CPU consumption significantly at high loads, but this is not a recommended<br />
configuration and is not supported by <strong>Cisco</strong> Technical Assistance <strong>Center</strong>.<br />
Under normal circumstances, place all servers from the <strong>Cisco</strong> <strong>Unified</strong> CallManager cluster within<br />
the same LAN or MAN. <strong>Cisco</strong> does not recommend placing all members of a cluster on the same<br />
VLAN or switch.<br />
If the cluster spans an IP WAN, you must follow the specific guidelines for clustering over the IP<br />
WAN as described in both the section on IPT: Clustering Over the WAN, page 2-27 in this guide,<br />
and the section on Clustering Over the IP WAN in the <strong>Cisco</strong> <strong>Unified</strong> Communications <strong>Solution</strong><br />
<strong>Reference</strong> Network Design (SRND) guide, available at<br />
www.cisco.com/go/srnd<br />
On MCS-7845 or equivalent servers, make sure to set the trace files location to the F: drive. This<br />
setting is a <strong>Cisco</strong> <strong>Unified</strong> CallManager service parameter. The CTI default trace file location should<br />
be directed to the C: drive array. This configuration will have the least impact on disk I/O resources.<br />
For the most current information on <strong>Cisco</strong> <strong>Unified</strong> CallManager and <strong>Unified</strong> CCE supported releases,<br />
refer to the latest version of the <strong>Cisco</strong> <strong>Unified</strong> CallManager Compatibility Matrix, available at<br />
http://www.cisco.com/univercd/cc/td/doc/product/voice/c_callmg/ccmcomp.htm<br />
For additional <strong>Cisco</strong> <strong>Unified</strong> CallManager clustering guidelines, refer to the <strong>Cisco</strong> <strong>Unified</strong><br />
Communications <strong>Solution</strong> <strong>Reference</strong> Network Design (SRND) guide at<br />
www.cisco.com/go/srnd<br />
<strong>Cisco</strong> <strong>Unified</strong> CallManager Servers<br />
<strong>Cisco</strong> <strong>Unified</strong> CallManager clusters utilize various types of servers, depending on the scale,<br />
performance, and redundancy required. They range from non-redundant, single-processor servers to<br />
highly redundant, multi-processor servers.<br />
<strong>Cisco</strong> <strong>Unified</strong> CallManager is supported only on specific hardware platforms. For a list of the currently<br />
supported hardware configurations, refer to the documentation on <strong>Cisco</strong> MCS 7800 Series <strong>Unified</strong><br />
CallManager appliances, available at<br />
http://www.cisco.com/go/swonly<br />
For the latest information on supported platforms, models, and specific hardware configurations, refer<br />
to the online documentation at<br />
http://www.cisco.com/en/US/products/hw/voiceapp/ps378/prod_brochure_list.html<br />
The server platforms have particular memory requirements, which are documented in Product Bulletin<br />
2864, Physical Memory Recommendations For <strong>Cisco</strong> <strong>Unified</strong> CallManager Version 4.0 and Later,<br />
available at<br />
http://www.cisco.com/en/US/products/sw/voicesw/ps556/prod_bulletin0900aecd80284099.html<br />
<strong>Cisco</strong> <strong>Unified</strong> <strong>Contact</strong> <strong>Center</strong> <strong>Enterprise</strong> 7.x SRND<br />
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