Supported footprints of Session Manager on VMware

Last Updated : Oct 07, 2024 |

The following table summarizes single Session Manager capacities for all Session Manager footprints.

Note:

The capacities listed here are only for Session Manager. For information about capacity limits for AADS, see the AADS documentation.

Note:

Avaya Aura® Session Manager supports VMware hosts with Hyperthreading enabled at the BIOS level.

Session Manager Device Footprints

Up to 2K Devices

2K to 4.5K Devices

4.5K to 7K Devices

7K to 10K Devices

10K to 23.3K Devices

23.3K to 66.7K Devices

CPU Minimum

2200MHz

vCPUs

3

5

8

12

20

53

CPU MHz Reservation

3300

5500

8800

13200

22000

58300

Memory Reservation

5132MiB

7828 MiB

10552 MiB

13368 MiB

24370 MiB

74064 MiB

SIP Devices1 (Normal/Failure) 2

2K/2.4K

4.5K/5K

7K/8K

10K/12K

23.3K/ 25K

66.7K/72K

CC Agents (Normal/Failure)

1.6K/2K

3.75K/4166

5.8K/6666

8333/10K

18K/21K

21.6K/25.2K

Presence Users (Normal/Failure)

2K/2.4K

4.5K/5K

7K/8K

10K/12K

18K/21K

21.6K/25.2K

Sessions (Sec/Hour/Max)

20/72K/ 17.9K

45/162K/37.4K

70/256K/59.8K

100/360K/90K

150/540K/170K

180/648K/510K

HDD for VMware OVA (GiB)3

100

100

135

135

210

210

HDD for Software-Only ISO (GiB)4

100

100

135

135

210

210

Notes:

  1. SIP devices: It includes all hard endpoints, soft clients, AST/NON-AST SIP endpoints and third-party endpoints.

  2. Normal/Failure: Normal refers to capacity of the Session Manager in Sunny Day scenario and Failure refers to capacity of the Session Manager in Rainy Day scenario. A Session Manager in a rainy day scenario can have more number of users registered as it has registrations from the users whose Primary Session Manager is down.

  3. HDD for VMware OVA: When deployed with SDM. Other deployment methods require that disk size be resized manually.

  4. You can deploy Session Manager software-only ISO image on VMware, KVM, Hyper-V, Amazon Web Services, Google Cloud Platform, and Microsoft Azure platforms.

Session Manager instances are intended to operate as redundant, homogeneous servers to provide high reliability if a Session Manager failure or a network component failure occurs. Each Session Manager should have similar system resources and a balanced number of devices.

Session Manager instances must be similarly sized in both processing power and available memory to accommodate distributions of devices during failover. Small and large footprints are not intended to be mixed in a solution. However, closely sized footprints, such as one size with the next size down in the table above, can be mixed temporarily as capacities increase. You must ensure that the number of devices failing over to a smaller footprint does not exceed the device capacities of that footprint.

You can implement a system that consists of a mixture of Session Manager instances hosted on VMware platforms as well as Session Manager instances hosted on the existing non-VMware platforms. You must configure the VMware-based Session Manager to be similar to the non-VMware-based Session Manager across the enterprise. Similar configurations ensure the best use of system resources and handling failover scenarios. Be careful when configuring the system where a large non-VMware Session Manager can failover to Session Manager running in VMware environment. You must ensure that the target Session Manager can handle the total capacities.

Avaya Aura® deployment supports a geo-redundant Session Manager configuration of up to 28 Session Manager instances that are interconnected and aware of each other. Configurations that exceed this limit are not expected to have problems, but these configurations are not guaranteed to be supported.

The following table summarizes the number of soft clients supported per Session Manager when the soft clients are using Avaya Aura® Device Services.

Session Manager profile

Total SIP devices

Number of Workplace devices

Previous Workplace devices

Profile 1

2,000

1,200

750

Profile 2

4,500

2,700

1350

Profile 3

7,000

4,200

2100

Profile 4

10,000

6,000

3000

Profile 5

23,300

13,900

5240

Profile 6

66,700

13,900

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