Cisco WebEx Meetings Server Planning Guide and System Requirements Release 2.0
WebEx System Requirements
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WebEx System Requirements

WebEx System Requirements

This section provides an overview of hardware, CPU and memory, network, and storage requirements for Cisco WebEx Meetings Server.

General System Requirements

Cisco WebEx Meetings Server is compatible with Cisco UCS servers that meet or exceed the specifications presented in this section.


Note


The table suggests that you deploy your internal storage in a RAID configuration. For further information, see Installing VMware vSphere ESXi and Configuring Storage in the Cisco WebEx Meetings Server Planning Guide.
Important:

When you perform an upgrade to Cisco WebEx Meeting Server Release 2.0 or Release 2.5 from Release 1.x, the ESXi hosts (Cisco UCS server) where the Admin virtual machine is located requires 1.5 TB of disk space. Refer to the section in this document that describes the different size user systems, which begins with the 50 User System. For the upgrade, there will be two sets of virtual machines on your network at the same time; the original virtual machines running Release 1.x and the upgrade virtual machines to support the newer release. For more details, see "Upgrading the System" in the Administration Guide.

Module

Requirements Notes

Host server and processors

  • Cisco UCS C-series rack server or equivalent B-series blade server.
  • AES-NI instruction set support.
  • 2.4 GHz or faster processor clock speed.

Network interfaces

These requirements apply to the NIC between the ESXi hosts (for the Cisco WebEx Meetings Server virtual machines) and the Ethernet switch (not to the external network interface).
  • Minimum 1 physical NIC for a non-redundant configuration. See the 50 User System section for special requirements where the Internet Reverse Proxy (IRP) and Admin virtual machine are sharing a host.
  • Redundant configurations must have all NIC interfaces duplicated (teamed or bonded) and connected to independent switching fabric.
  • Recommend an additional NIC for VMware management network (optional).

Internal (DAS) Storage for ESXi hosts where internal virtual machines are deployed

  • Minimum of 4 drives in a RAID-10 or RAID-5 configuration
  • Minimum of 1.5 TB usable storage for new system deployments or upgrades.
  • When you upgrade to Cisco WebEx Meetings Server Release 2.0 or Release 2.5 from Release 1.x, the ESXi hosts each require from 172 GB to 1118 GB free disk space depending on the size of your system and the virtual machines. Refer to the section in this document that describes the different size user systems, which begins with the 50 User System.
  • Optional second array for ESXi
Note   

The virtual machines must use thick provisioning for storage.

Internal (DAS) storage for ESXi hosts where IRP virtual machines are deployed

  • Minimum of 2 drives in a RAID-1 configuration
  • Minimum of 300 GB usable storage
  • Can use the same configurations as for the internal virtual machines
Note   

The virtual machines must use thick provisioning for storage.

SAN storage

  • Can be used as a substitute for DAS. Cisco recommends the allocation of the same amount of storage space.
  • B-series blade servers have only two hard disk drives. If you are using Cisco UCS B-series blade servers and you plan to upgrade to Cisco WebEx Meetings Server Release 2.0 or Release 2.5, you must use SAN storage to meet the 4 hard disk drives in either a RAID 5 or RAID 10 configuration requirement.
  • Recommended only for deployments where the support staff has experience monitoring and tuning SAN performance.
    Note   

    You take responsibility for adding storage for new VMware requirements and future growth of the system.

  • Fiber Channel (FC) or Fiber Channel over 10 Gb Ethernet (FCoE) only.
  • Performance requirements are the same as for DAS.
  • Maximum permissible total latency, as measured by vSphere, is 20 ms. For further information, see the Storage section at Storage.
  • Total space required for virtual machines: The sum of the storage resources reserved for each virtual machine of the CWMS system.
    Note   

    The virtual machines must use thick provisioning for storage.

NAS storage

  • Can be used as a substitute for DAS or SAN. Cisco recommends the allocation of the same amount of storage space.
  • We recommend using NAS storage servers with Cisco UCS C-series rack servers.
  • Recommended only for deployments where the support staff has experience monitoring and tuning NAS performance.
    Note   

    You take responsibility for adding additional storage for new VMware requirements and future growth of the system.

  • Fiber Channel (FC) , Network File System (NFS), or SCSI only. For further information, see UC Virtualization Storage System Design Requirements.
  • Performance requirements are the same as for DAS.
  • Maximum permissible total latency, as measured by vSphere, is 20 ms. For further information, see Storage.
  • Total space required for virtual machines: The sum of the storage resources reserved for each virtual machine of the CWMS system.
  • File server must support vStorage APIs for Array Integration (VAAI) and use thick provisioning.
    Note   

    Although the default provisioning scheme for NAS storage is thin provisioning, the virtual machines must use thick provisioning for storage. To enable thick provisioning for deployment with NAS storage, the storage-vendor-provided plug-in for VAAI needs to be installed on all the UCS servers used in the Cisco WebEx Meetings Server deployment.

Hypervisor

  • vSphere versions 5.0, 5.0 Update 1, 5.0 Update 2, 5.1, 5.1 Update 1
  • vSphere licenses:
    • 5.0, 5.0 Update 1, 5.0 Update 2: vSphere Enterprise Plus license for 800 and 2000 user systems. vSphere Standard license for 50 and 250 user systems.
    • 5.1, 5.1 Update 1: vSphere Enterprise license for 800 and 2000 user systems. vSphere Standard license for 50 and 250 user systems.
  • One VMware license per processor socket.
  • vCenter Server 5.0, 5.0 Update 1, 5.0 Update 2, 5.1, 5.1 Update 1
  • vCenter can be co-resident with Cisco WebEx Meetings Server, providing the processor and memory requirements are added to the system requirements. vCenter co-resident configurations are supported for 50-user and 250-user systems only.
  • Co-residency with Cisco Unified Communications products on the same physical ESXi host is not supported.
  • Co-residency with non-Cisco WebEx Meetings Server virtual machines on the same physical ESXi host is not supported.

Email server

  • Fully qualified domain name (FQDN) of a mail server that the system will use to send emails.
  • Port number—default value of the SMTP port number is 25 or 465 (secure SMTP port number).

WebEx Productivity Tools

Cisco WebEx Meetings Server supports the latest version of WebEx Productivity Tools, which is available on the Downloads page of your WebEx site. If users are running an older version of WebEx Productivity Tools after you perform a system upgrade, they can schedule, start, and join meetings, but the latest features are not available. We recommend that you silently push the latest WebEx Productivity Tools .msi for an optimal experience.

Minimum Hardware Requirements

This section lists many of the Cisco UCS servers you can use for each size system. For specific requirements for each system, refer to the following sections:

Table 1  Host Models and Required vSphere Versions

Deployment Size

Example of UCS Model

Virtual Support

50 Users

  • UCS C220 M3
  • UCS B200 M3
  • vSphere ESXi 5.1 Standard Edition
  • vSphere ESXi 5 Standard Edition

250 Users

  • UCS C240 M3
  • UCS B200 M3
  • vSphere ESXi 5.1 Standard Edition
  • vSphere ESXi 5 Standard Edition

800 Users

  • UCS C460 M2
  • UCS B440 M2
  • UCS B420 M3
  • vSphere ESXi 5.1 Enterprise Edition
  • vSphere ESXi 5 Enterprise Plus Edition

2000 Users

  • UCS C460 M2
  • UCS B440 M2
  • UCS B420 M3
  • vSphere ESXi 5.1 Enterprise Edition
  • vSphere ESXi 5 Enterprise Plus Edition

Note


Co-residency with vCenter is supported with 50 and 250 user system deployments only. Co-residency with Cisco Unified Communications products on the same physical host is not supported.



Note


You can use older models of the UCS hardware with your system, but for a better user experience use the hardware listed in the table. For example, you can use the UCS C220 M3 for a 250 user system if you already have that hardware available.



Note


When upgrading to Cisco WebEx Meetings Server Release 2.0, it's possible to use Cisco UCS B200 M3 blade servers with 2x local hard drives as long as the upgraded system uses SAN storage for its virtual machines. Using SAN storage with B-series blade servers allows your system to meet the 4 hard disk drives in a RAID 5 or RAID 10 configuration requirement for Cisco WebEx Meetings Server Release 2.0.



Note


For 800 user and 2000 user systems, we do not recommend deploying additional virtual machines on a DMZ host. This can result in increased packet loss and noticeable latency on media connections.



Note


The UCS C460 M2 server does not have a battery backup unit (BBU), so you should set the write cache policies to write through. See the "Setting the Write Cache on a RAID Controller" section in Installing VMware vSphere ESXi and Configuring Storage for more information.


The supported co-resident configurations are described in these sections:

Resources Consumed by Cisco WebEx Meetings Server and the ESXi Host

Cisco WebEx Meetings Server is deployed on one or more virtual machines on ESXi hosts. CPU and memory resources, and storage space, is consumed by Cisco WebEx Meetings Server and by ESXi (VMware component that enables virtualization on the physical Cisco UCS Server). Depending on your system size, vCenter and multiple virtual machines may run on the same Cisco UCS server.

Cisco WebEx Meetings Server uses resource reservation for its virtual machines to guarantee system scalability. Other VMware workloads do not take CPU and other resources away from the virtual machines. The minimum requirements for each system size includes enough resources to support:

  • Continued quality of service for Cisco WebEx Meeting Server at peak system usage (maximum capacity).
  • VMware ESXi.
  • VMware vCenter (when co-resident). For the requirements for vCenter Server, see Knowledge Base and search for "Installing vCenter Server 5.0 best practices" or "Installing vCenter Server 5.1 best practices", respectively.
  • VMware snapshots of the virtual machine (delete these as soon as possible otherwise you may experience severe performance degradation). Extra disk space is required for snapshots, as some snapshots may be as large as the original virtual machine. In some cases, vSphere may delete snapshots to create storage space, compromising the ability to roll back to previous snapshots.
  • Use of the Cisco UCS Server over the typical life cycle of the server.
Remember:

The hardware requirements specified in the OVA file are the minimum requirements that are needed to deploy Cisco WebEx Meetings Server. These requirements do not include any CPU, memory, or storage requirements for VMware vCenter or ESXi.

Important:

The requirements for the Cisco UCS Servers, as listed in the following tables, include requirements for Cisco WebEx Meetings Server 2.x, VMware ESXi 5.0 and 5.1, and vCenter 5.0 and 5.1 (in supported co-residency configurations). Be sure to purchase hardware with the specifications defined in the following tables.


Caution


Co-residency, other than the configurations listed in the following tables, is not supported. If you disregard our system requirements, your virtual machines may not be able to boot. The deployment of the virtual machines may stall from within the earliest product screens during the vCenter OVA deployment.


50 User System

This is a schematic diagram of a 50 user system. The diagram illustrates two versions of a 50 user deployment. If you plan to add an HA system, those virtual machines are shown as the "redundant" virtual machines. If you do not want HA, then only deploy the primary system.

The following table lists the minimum hardware requirements for the ESXi hosts (Cisco UCS servers) in your system. The last two columns show the amount of disk space needed for new installations of Cisco WebEx Meetings Server Release 2.0, and the free disk space needed when you upgrade to Cisco WebEx Meetings Server Release 2.0 from Release 1.x using your existing Cisco UCS servers. For more information, see General System Requirements.

For more information about the bandwidth requirements, see Network Bandwidth Requirements.


Note


Because the resource requirements for ESXi 5.1 is greater than that for ESXi 5.0, Cisco requires additional CPU cores for a system deployed on vSphere ESXi 5.1.



Note


Co-residency with vCenter is supported with a 50 user system deployment as configured in the following table.



Note


For IOPS information, see Advantages of Deploying Your System on VMware vSphere.



Note


For brevity, we use the acronym IRP for the Internet Reverse Proxy in the following table.


Virtual Machines on ESXi Host (Cisco UCS Server)

CPU Cores

Memory (GB)

Ethernet Ports

Hard Drive Storage Requirement for New Installs

Free Hard Drive Storage Required to Upgrade to 2.0 from 1.x

Admin
  • 4 (ESXi 5.0)
  • 6 (ESXi 5.1)
24
  • 2 for the Admin virtual machine, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network

1.5 TB; minimum of 7,200 RPM

1118 GB

Admin and vCenter (co-resident)
  • 8 (ESXi 5.0)
  • 10 (ESXi 5.1)
36
  • 2 for the Admin virtual machine, including 1 if NIC teaming is used for redundancy
  • 1 for vCenter
  • 1 recommended for ESXi management network

1.5 TB; minimum of 7,200 RPM

1078 GB

Note   

This figure is based on the assumption that you have set up vCenter with 40 GB.

IRP
  • 4 (ESXi 5.0)
  • 6 (ESXi 5.1)
12
  • 2 for the IRP virtual machine, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network

300 GB; minimum of 7,200 RPM

172 GB

Admin and IRP (co-resident) 8 36
  • 2 for the Admin virtual machine, including 1 if NIC teaming is used for redundancy
  • 2 for IRP virtual machine, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network

1.5 TB; minimum of 7,200 RPM

990 GB

Admin and IRP and vCenter (all co-resident) 12 40
  • 2 for the Admin virtual machine, including 1 if NIC teaming is used for redundancy
  • 2 for IRP virtual machine, including 1 if NIC teaming is used for redundancy
  • 1 for vCenter
  • 1 recommended for ESXi management network

1.5 TB; minimum of 7,200 RPM

950 GB

Note   

This figure is based on the assumption that you have set up vCenter with 40 GB.


Note


If you plan to use an HA system, purchase the same hardware requirements and quantities as the primary system.


Resources Reserved by the Virtual Machines in a 50 User System

This section illustrates how much media the virtual machines use and is intended for those with expert knowledge of VMware. CPU resources are specified as vCPUs (cores) and MHz (CPU cycles). The VMware VMkernel uses MHz cycles to control CPU scheduling.

Memory resources are specified by maximum memory and reserved memory. Reserved memory is not shared with other virtual machines on the same physical Cisco UCS Server.

Disk resources (storage) are controlled in two separate areas. During the OVA build, the CentOS filesystem partition sizes determine the minimum disk size. Secondly, vCenter controls the maximum disk space available.

Important:

The numbers in this table do not include resources for VMware ESXi or vCenter. See Resources Consumed by Cisco WebEx Meetings Server and the ESXi Host.

Virtual Machine Type Virtual CPU (vCPU) CPU1 (MHz) Reserved Memory/Total Memory2 (GB) Disks (GB)

Admin

4

8000

12/14

418

Internet Reverse Proxy

4

8000

4/4

128

1 Number obtained by multiplying the number of physical CPUs with the speed of the CPU chip (MHz). Hyperthreading is not included in this calculation. (The physical CPU must have a clock speed of 2.4 GHz or faster.)
2 Virtual machines with media functionality have additional, non-reserved memory; Memory = Reserved/Total

Note


If you attempt to deploy a virtual machine without the minimum number of vCPUs, then the OVA deployment of the virtual machine will fail. If you attempt to deploy a virtual machine without the minimum total MHz, then the virtual machine will not power on.


250 User System

This is a schematic diagram of a 250 user system. If you plan to add an HA system, those virtual machines are shown as the "redundant" virtual machines. If you do not want HA, then only deploy the primary system.

The following table lists the minimum hardware requirements for the ESXi hosts (Cisco UCS servers) in your system. The last two columns show the amount of disk space needed for new installations of Cisco WebEx Meetings Server Release 2.0, and the free disk space needed when you upgrade to Cisco WebEx Meetings Server Release 2.0 from Release 1.x using your existing Cisco UCS servers. For more information, see General System Requirements.

For more information about the bandwidth requirements, see the Network Bandwidth Requirements.


Note


Co-residency with vCenter is supported with a 250 user system deployment as configured in the following table.



Note


For IOPS information, see Advantages of Deploying Your System on VMware vSphere.



Note


For brevity, we use the acronym IRP for the Internet Reverse Proxy in the following table.


Virtual Machines on ESXi Host (Cisco UCS Server)

CPU Cores

Memory (GB)

Ethernet Ports

Hard Drive Storage Requirement for New Installs

Free Hard Drive Storage Required to Upgrade to 2.0 from 1.x

Admin and Media 12 52
  • 2 for Admin and Media, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network
1.5 TB; minimum of 7200 RPM

990 GB

(Admin and Media) and vCenter (co-resident) 16 56
  • 2 for Admin and Media, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network
  • 1 for vCenter
1.5 TB; minimum of 7200 RPM

950 GB

Note   

This figure is based on the assumption that you have set up vCenter with 40 GB.

IRP 12 36
  • 2 for IRP, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network
300 GB; minimum of 7200 RPM

172 GB


Note


If you plan to use a HA system, purchase the same hardware requirements and quantities as the primary system.


Resources Reserved by the Virtual Machines in a 250 User System

This section illustrates how much media the virtual machines use and is intended for those with expert knowledge of VMware. CPU resources are specified as vCPUs (cores) and MHz (CPU cycles). The VMware VMkernel uses MHz cycles to control CPU scheduling.

Memory resources are specified by maximum memory and reserved memory. Reserved memory is not shared with other virtual machines on the same physical Cisco UCS Server.

Disk resources (storage) are controlled in two separate areas. During the OVA build, the CentOS filesystem partition sizes determine the minimum disk size. Secondly, vCenter controls the maximum disk space available.

Important:

The numbers in this table do not include resources for VMware ESXi or vCenter. See Resources Consumed by Cisco WebEx Meetings Server and the ESXi Host.

Virtual Machine Type Virtual CPU (vCPU) CPU3 (MHz) Reserved Memory/Total Memory4 (GB) Disks (GB)

Admin

4

8000

16/16

418

Media

8

16,480

13/23

128

Internet Reverse Proxy

8

16,480

6/6

128

3 Number obtained by multiplying the number of physical CPUs with the speed of the CPU chip (MHz). Hyperthreading is not included in this calculation. (The physical CPU must have a clock speed of 2.4 GHz or faster.)
4 Virtual machines with media functionality have additional, non-reserved memory; Memory = Reserved/Total

Note


If you attempt to deploy a virtual machine without the minimum number of vCPUs, the OVA deployment of the virtual machine will fail. If you attempt to deploy a virtual machine without the minimum total MHz processor speed, then the virtual machine will not power on.


800 User System

This is a schematic diagram of an 800 user system. If you plan to add a HA system, those virtual machines are shown as the "redundant" virtual machines. If you do not want HA, then only deploy the primary system.

The following table lists the minimum hardware requirements for the ESXi hosts (Cisco UCS servers) in your system. The last two columns show the amount of disk space needed for new installations of Cisco WebEx Meetings Server Release 2.0, and the free disk space needed when you upgrade to Cisco WebEx Meetings Server Release 2.0 from Release 1.x using your existing Cisco UCS servers. For more information, see General System Requirements.

For more information about the bandwidth requirements, see Network Bandwidth Requirements.


Note


Co-residency with vCenter is not supported with an 800 user system deployment.



Note


For IOPS information, see Advantages of Deploying Your System on VMware vSphere.



Note


For brevity, we use the acronym IRP for the Internet Reverse Proxy in the following table.


Virtual Machines on ESXi Host (Cisco UCS Server)

CPU Cores

Memory (GB)

Ethernet Ports

Hard Drive Storage Requirement for New Installs

Free Hard Drive Storage Required to Upgrade to 2.0 from 1.x

Admin and Media (combined) 40 80
  • 2 for Admin and Media, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network
1.5 TB; minimum of 10,000 RPM

990 GB

IRP 40 36
  • 2 for IRP, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network
300 GB; minimum of 10,000 RPM

172 GB


Note


If you plan to use an HA system, purchase the same hardware requirements and quantities as the primary system.



Note


For 800 user systems, we do not recommend deploying additional virtual machines on a DMZ host. This may result in increased packet loss and noticeable latency on media connections.


Resources Reserved by the Virtual Machines in a 800 User System

This section illustrates how much media the virtual machines use and is intended for those with expert knowledge of VMware. CPU resources are specified as vCPUs (cores) and MHz (CPU cycles). The VMware VMkernel uses MHz cycles to control CPU scheduling.

Memory resources are specified by maximum memory and reserved memory. Reserved memory is not shared with other virtual machines on the same physical Cisco UCS Server.

Disk resources (storage) are controlled in two separate areas. During the OVA build, the CentOS filesystem partition sizes determine the minimum disk size. Secondly, vCenter controls the maximum disk space available.

Important:

The numbers in this table do not include resources for VMware ESXi. See Resources Consumed by Cisco WebEx Meetings Server and the ESXi Host.

Virtual Machine Type Virtual CPU (vCPU) CPU5 (MHz) Reserved Memory/Total Memory6 (GB) Disks (GB)

Admin

10

20,600

16/16

418

Media

30

60,800

14/44

128

Internet Reverse Proxy

20

41,200

10/10

128

5 Number obtained by multiplying the number of physical CPUs with the speed of the CPU chip (MHz). Hyperthreading is not included in this calculation. (The physical CPU must have a clock speed of 2.4 GHz or faster.)
6 Virtual machines with media functionality have additional, non-reserved memory; Memory = Reserved/Total

Note


If you attempt to deploy a virtual machine without the minimum number of vCPUs, then the OVA deployment of the virtual machine will fail. If you attempt to deploy a virtual machine without the minimum total MHz, then the virtual machine will not power on.


2000 User System

This is a schematic diagram of a 2000 user system.

The following table lists the minimum hardware requirements for the ESXi hosts (Cisco UCS servers) in your system. The last two columns show the amount of disk space needed for new installations of Cisco WebEx Meetings Server Release 2.0, and the free disk space needed when you upgrade to Cisco WebEx Meetings Server Release 2.0 from Release 1.x using your existing Cisco UCS servers. For more information, see General System Requirements.

For more information about the bandwidth requirements, see Network Bandwidth Requirements.

If you plan to add a HA system, those virtual machines are shown as the "redundant" virtual machines. If you do not want HA, then only deploy the primary system.


Note


Co-residency with vCenter is not supported with a 2000 user system deployment.



Note


For IOPS information, see Advantages of Deploying Your System on VMware vSphere.



Note


For brevity, we use the acronym IRP for the Internet Reverse Proxy in the following table.


Virtual Machines on ESXi Host (Cisco UCS Server)

CPU Cores

Memory (GB)

Ethernet Ports

Hard Drive Storage Requirement for New Installs

Free Hard Drive Storage Required to Upgrade to 2.0 from 1.x

Media1 and Admin (combined)

40 80
  • 2 for Media1 and Admin, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network
1.5 TB; minimum of 10,000 RPM

990 GB

Media2 and Web1 (combined) 40 80
  • 2 for Media2 and Web1, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network
1 TB; minimum of 10,000 RPM

768 GB

Media3 and Web2 (combined) 40 80
  • 2 for Media3 and Web2, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network
1 TB; minimum of 10,000 RPM

768 GB

IRP 40 36
  • 2 for IRP, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network
300 GB; minimum of 10,000 RPM

172 GB

Media and Admin (combined) for HA 40 80
  • 2 for Media and Admin, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network
1.5 TB; minimum of 10,000 RPM

990 GB

Web for HA 40 80
  • 2 for Web, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network
1 TB; minimum of 10,000 RPM

896 GB

IRP for HA 40 36
  • 2 for IRP, including 1 if NIC teaming is used for redundancy
  • 1 recommended for ESXi management network
300 GB; minimum of 10,000 RPM

172 GB


Note


For 2000 user systems, we do not recommend deploying additional virtual machines on a DMZ host. This might result in increased packet loss and noticeable latency on media connections.


Resources Reserved by the Virtual Machines in a 2000 User System

This section illustrates how much media the virtual machines use and is intended for those with expert knowledge of VMware. CPU resources are specified as vCPUs (cores) and MHz (CPU cycles). The VMware VMkernel uses MHz cycles to control CPU scheduling.

Memory resources are specified by maximum memory and reserved memory. Reserved memory is not shared with other virtual machines on the same physical Cisco UCS Server.

Disk resources (storage) are controlled in two separate areas. During the OVA build, the CentOS file system partition sizes determine the minimum disk size. Secondly, vCenter controls the maximum disk space available.

Important:

The numbers in this table do not include resources for VMware ESXi. See Resources Consumed by Cisco WebEx Meetings Server and the ESXi Host.

Virtual Machine Type Virtual CPU (vCPU) CPU7 (MHz) Reserved Memory/Total Memory8 (GB) Disks (GB)

Admin

10

20,600

16/16

418

Media

30

60,800

14/44

128

Web

10

20,600

16/16

128

Internet Reverse Proxy

20

41,200

10/10

128

7 Number obtained by multiplying the number of physical CPUs with the speed of the CPU chip (MHz). Hyperthreading is not included in this calculation. (The physical CPU must have a clock speed of 2.4 GHz or faster.)
8 Virtual machines with media functionality have additional, non-reserved memory; Memory = Reserved/Total

Note


If you attempt to deploy a virtual machine without the minimum number of vCPUs, then the OVA deployment of the virtual machine will fail. If you attempt to deploy a virtual machine without the minimum total MHz, then the virtual machine will not power on.


System Capacity Matrix

Key Points:
  • One of the basic assumptions for the information presented in the following table is that there are at least two people participating in a meeting.
  • Concurrent meeting connections is defined as the number of people participating in a meeting at any given time. For example, for a 50 user system, the maximum concurrent meeting connections can be comprised of five concurrent meetings that each have a total of 10 people in the meeting (for example, one host and nine participants).
  • After the maximum number of meeting participants is reached for any point in time, the system does not allow other users to start or join meetings. Of those maximum number of meeting participants (2000, 800, 250 or 50 people), only half of the participants can use video. Video is defined as sending or receiving, meaning users might be using their WebEx webcam video or the video file share option which allows users to share a video.
  • Desktop sharing is not considered video. This means with a 250 user system, 250 people can be sharing their desktops during meetings at any given time.

The numbers in the table below represent the design capacity for the Cisco WebEx Meetings Server system. Operating the system at a capacity higher than these specifications can result in a degraded user experience and may result in system instability. Cisco reserves the right to enforce capacity limits at these levels.

Table 2 System Capacity Matrix

System Capacity

2000 user system

800 user system

250 user system

50 user system

Notes

Maximum Concurrent Meeting Connections (Audio, Video, and Web users)

2000

800

250

50

The number of people participating in concurrent meetings at any given time.

Maximum Simultaneous Audio Connections (Teleconference Phone Calls and Voice Connection Using Computer From Meeting Clients)

2000

800

250

50

The system capacity remains the same as shown on the left, regardless of what combination of the following features are used:
  • G.711, G.722, G.729 audio codecs
  • IPv4 or IPv6 teleconferencing
  • TLS/SRTP audio encryption

Maximum Concurrent Video and Video File Sharing Users

1000

400

125

25

These numbers show the maximum number of concurrent meeting connections (or users) allowed to use video sharing at the same time. When the number of users sharing video in concurrent meetings reaches this limit, the remaining users invited to the concurrent meetings can join the meeting but their video windows will be grayed out.

Note   

Desktop sharing is not considered video.

Maximum Participants in One Meeting for Non-HA Deployments

100

100

100

50

These numbers show the maximum number of participants who can attend a meeting.

Maximum Participants in One Meeting for HA Deployments

250

250

100

50

These numbers show the maximum number of participants who can attend a meeting.

Maximum Meetings That Can be Recorded Simultaneously

100

40

13

3

This is the total number of meetings that can use the Recording feature at one time.

Maximum Concurrent Recording Playback Sessions

500

200

63

12

This is the total number of recording playback sessions that can occur simultaneously. This refers to recordings that are saved on your storage system and does not include recordings that are downloaded to users' desktops.

Note   

These playback sessions are not included in the concurrent meeting connections on the system.

Maximum Number of User Profiles

400,000

400,000

400,000

400,000

This number includes active and deactivated users.

Maximum Concurrent Meetings

1000

400

125

25

The number of separate meetings that can be active concurrently.

Maximum Call Rate (calls/per second)

20

8

3

1

This is the average number of users who can dial into a meeting during a one second time period. After the system reaches this number, the next few users to dial into the meeting might experience an additional few seconds wait before connecting to the meeting.

Maximum Concurrent Sign-in

20 people per second

8 people per second

3 people per second

1 person per second

This is the average number of users who can simultaneously sign in to your WebEx site during a one second time period. After the system reaches this number, the next few users to sign in to the WebEx site might experience an additional few seconds wait before they can join a meeting.

Maximum Aggregate Bandwidth Utilization

5 Gbps

2 Gbps

625 Mbps

125 Mbps

Using our test system at its maximum bandwidth, this is the maximum bandwidth the test system could handle. For more information about bandwidth utilization see the Network Bandwidth Requirements section in the Networking Topology for Your System chapter of the Planning Guide. You can also refer to the WebEx Network Bandwidth White Paper.


Note


For new installations of Cisco WebEx Meetings Server Release 2.0, the storage requirements are:
  • Disk space can be local (DAS) or external (SAN or NAS).
  • ESXi hosts (Cisco UCS server) with the Admin virtual machine require 1.5 TB of disk space.
  • ESXi hosts (Cisco UCS server) without an Admin virtual machine require 1 TB of disk space.
  • When upgrading to Cisco WebEx Meetings Server Release 2.0 from Release 1.x by using existing Cisco UCS servers, the ESXi hosts requires 1118 GB of free disk space if the UCS server has only the Admin virtual machine (primary or HA system) or 990 GB of free disk space if the UCS server has one Admin and one Media virtual machine (primary or HA system).
For complete details, see the Resources Consumed by Cisco WebEx Meetings Server and the ESXi Host section in the http:/​/​www.cisco.com/​c/​en/​us/​support/​conferencing/​webex-meetings-server/​products-installation-and-configuration-guides-list.html.