You can use a maximum of four application servers per system. You can use a cluster of up to three application servers for a maximum of 300 ports. You can also add a fourth application server to the cluster for redundancy as long as the active traffic does not exceed 300 ports. Messaging supports 20,000 users with an Avaya message store.
Although you can use a high capacity storage server as a single server, this is not typically done because you will not be able to leverage the additional storage capacity in that configuration. The port capacity of the application server in the single server configuration, whether you use a standard or high capacity server, remains the same. You still have only 100 ports, and the extra storage space of the high capacity server is not used. Use of a high capacity server as a single server might prove useful if you intend to convert to a front-end/back end configuration in the future.
The following table shows port and mailbox capacity for the standard server and the high capacity storage server, using the G.711 codec.
| Role:
Hardware: |
Single server (application + storage) | Application server | Storage server |
|---|---|---|---|
| Standard server | Ports: 100
User: 6,200 20 minutes. mailboxes: 8,000 30 minutes. mailboxes: 5,500 |
Ports: 100
Users: 6,200 |
2,666 hours (20 min. mailboxes: 8,000)
2,759 hours (30 min. mailboxes: 5,500) |
| High capacity storage server | Ports: 100
User: 6,200 20 minutes. mailboxes: 8,000 30 minutes. mailboxes: 5,500 |
— | 6,666 hours (20 min. mailboxes: 20, 000)
6,750 hours (30 min. mailboxes: 13,500) |