For more information, see Configurations for the Exchange Mailbox Agent ContentStore Mailbox and Configurations for the ContentStore Mail Server (SMTP).
These hardware guidelines are based on the number of messages that are sent or received per day on your ContentStore Mail Server (SMTP) access node.
Important
-
For high availability, configure at least two access nodes.
-
Use an access node for every 600,000 messages received per day.
Access Node Size Without Content Indexing
If you do not use content indexing, base the size of your access nodes on these guidelines.
|
Number of messages received per day on each access node* |
Up to 50,000 |
50,000 to 300,000 |
300,000 to 600,000 |
|---|---|---|---|
|
CPU or vCPU, and RAM |
CPU or vCPU: 4 cores RAM: 8 GB |
CPU or vCPU: 8 cores RAM: 16 GB |
CPU or vCPU: 12 cores RAM: 24 GB |
|
ContentStore Mailbox cache disk size** |
100 GB |
500 GB |
1 TB |
|
ContentStore Mailbox disk IOPS |
Minimum: 200 IOPS |
Minimum: 300 IOPS |
Minimum: 600 IOPS |
|
Streams per access node |
2 |
5 |
5 |
* Based on an average message size of 100 KB.
** The cache should have enough space to hold two-week's worth of messages in case the backup infrastructure becomes unavailable. Calculate this space based on the amount of email that you expect to be received on the Exchange server.
Access Node Size with Content Indexing
If you use content indexing, base the size of your access nodes on these guidelines.
|
Number of messages received per day on each access node* |
Up to 50,000 |
50,000 to 300,000 |
300,000 to 600,000 |
|---|---|---|---|
|
CPU or vCPU, and RAM |
CPU or vCPU: 8 cores RAM: 16 GB |
CPU or vCPU: 12 cores RAM: 24 GB |
CPU or vCPU: 16 cores RAM: 32 GB |
|
ContentStore Mailbox cache disk size** |
100 GB |
500 GB |
1 TB |
|
ContentStore Mailbox disk IOPS |
Minimum: 200 IOPS |
Minimum: 300 IOPS |
Minimum: 600 IOPS |
|
Streams per access node |
2 |
5 |
5 |
* Based on an average message size of 100 KB.
** The cache should have enough space to hold two-week's worth of messages in case the backup infrastructure becomes unavailable. Calculate this space based on the amount of email that you expect to be received on the Exchange server.