Virtualization for Unified CM IM and Presence

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Contents

Version 9.x

Click here for a Legend

Note Note:
  • If you have more than 10,000 users in Cisco Unified Communications Manager, you must use the 5,000 user OVA template at a minimum, even if you plan to license less than 5,000 users in IM and Presence.
  • The recommendations below only apply to single cluster deployments. For intercluster deployments, Cisco recommends that you use the 5000 user OVA template at a minimum.

Component & Capacity Point
Use with BE 6000?
VM Configuration Requirements
click to download OVA file for this version
Supported Hardware (Latest)
Supported Hardware (Older)
vCPU
vRAM
vDisk
vNIC
UCS Tested Reference Configurations
UCS or 3rd-party Specs-based on Intel Xeon
UCS Tested Reference Configurations
UCS or 3rd-party Specs-based on Intel Xeon

S
S+
M
L
XL
2XL
Full UC Perf. CPU
Restricted UC Perf. CPU
S
M
Full UC Perf. CPU
Restricted UC Perf. CPU
500 users (Full UC)
See notes
No 1
2 GB 1x 80 GB 1
No No Yes Yes Yes Yes Yes No No Yes Yes No
1000 users (Full UC)
See notes
Yes 1
2 GB 1x 80 GB 1
Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes No
2000 users
(Full UC)
See notes
No 1
4 GB 1x 80 GB 1
No No Yes Yes Yes Yes Yes No Yes Yes Yes No
5000 users (Full UC)
See notes
No 2 4 GB 2x 80 GB 1
No No Yes Yes Yes Yes Yes No Yes Yes Yes No
15,000 users (Full UC)
See notes
No 4 6 GB 2x 80 GB 1
No No Yes Yes Yes Yes Yes No Yes Yes Yes No





Notes on 500 user VM configuration

This is a minimal VM configuration for use with Cisco Hosted Collaboration Solution.


Full UC Mode maximum users:

  • 500 Full UC users per node
  • 1500 Full UC users per cluster (HA)


IM-only Mode maximum users:

  • 1000 IM-only users per node
  • 3000 IM-only users per cluster (HA)


This VM size can be used when migrating from physical servers with 80 GB disk capacity or less (e.g. MCS-7825-H2).

If migrating from a physical server with more than 80 GB of disk capacity, see the Disaster Recovery System Administration Guide for guidance. 


Notes on 1000 user VM configurations

Full UC Mode maximum users:

  • 1000 Full UC users per node
  • 1000 Full UC users per cluster (HA)


IM-only Mode maximum users:

  • 2000 IM-only users per node
  • 2000 IM-only users per cluster (HA)


When this VM size is used, the Cisco Business Edition 6000 max users per cluster applies, even if this VM is used for UC on UCS instead of Business Edition 6000.


This VM size can be used when migrating from physical servers with 80 GB disk capacity or less (e.g. MCS-7825-H2).

If migrating from a physical server with more than 80 GB of disk capacity, see the Disaster Recovery System Administration Guide for guidance.


Notes on 2000 user VM configurations

Full UC Mode maximum users:

  • 2000 Full UC users per node
  • 6000 Full UC users per cluster (HA)


IM-only Mode maximum users:

  • 2000 IM-only users per node
  • 6000 IM-only users per cluster (HA)


This VM size can be used when migrating from physical servers with 80 GB disk capacity or less (e.g. MCS-7825-H2).

If migrating from a physical server with more than 80 GB of disk capacity, see the Disaster Recovery System Administration Guide for guidance.


Notes on 5000 user VM configuration

Full UC Mode maximum users:

  • 5000 Full UC users per node
  • 15,000 Full UC users per cluster (HA)


IM-only Mode maximum users:

  • 12,500 IM-only users per node
  • 37,500 IM-only users per cluster (HA)


Notes on 15000 user VM configuration

Full UC Mode maximum users:

  • 15,000 Full UC users per node
  • 45,000 Full UC users per cluster (HA)


IM-only Mode maximum users:

  • 25,000 IM-only users per node
  • 75,000 IM-only users per cluster (HA)


IOPS and Storage System Performance Requirements

Expect similar peaks as Cisco Unified Communications Manager during backups and upgrades.

The 1000 user VM configurations generates about 60 IOPS during steady-state.

For VM configurations supporting more than 1000 users, plan for 160 IOPS during steady-state.


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