Sizing and scalability considerations
To plan your BMC Digital Workplace deployment, use the recommendations in this topic.
The sizing guidelines for BMC Digital Workplace and BMC Remedy with Smart IT (Smart IT) together are provided in Hardware requirements in the BMC Remedy ITSM Deployment online documentation.
BMC Digital Workplace and Smart IT server cluster
To calculate the size of the environment required for BMC Digital Workplace , BMC uses the following factors:
- Total number of users
- Estimated concurrent connections (usually 10% of the total users)
BMC recommends that you have one BMC Digital Workplace and Smart IT server (with 4 GB and 2 CPUs) for 15,000 registered users, which includes an estimated 1,500 concurrent users. For each environment, consider one extra BMC Digital Workplace and Smart IT server to allow for rolling maintenance and handling of peak loads for events (such as a system outage).
To determine sizing for your environment, use the following formula:
(Total users X 10% / 1500) + 1 = Number of BMC Digital Workplace servers
For example, for 75,000 users, the formula would look like this:
(75000 users X 10% / 1500) + 1 = 5 + 1 = 6 BMC Digital Workplace servers
For the 18.02 release, the above formula applies up to total of 90000 users.
MongoDB cluster
The MongoDB cluster requires specific cluster setup to support high availability (HA). For the sizing recommendations for the small (1500 users), medium (4500 users) and large (7500 users) environments, use a replica set configuration of 1 primary and 2 secondary servers.
The sizing recommendations table below includes BMC recommendation for MongoDB cluster configuration based on the number of users.
Sizing recommendations
BMC recommends that you use one of the following deployment options for BMC Digital Workplace .
Note
These guidelines are only for the BMC Digital Workplace application. For sizing guidelines of BMC Digital Workplace and BMC Remedy with Smart IT (Smart IT) together, see Hardware requirements in the BMC Remedy ITSM Deployment online documentation.
Environment | Number of
BMC Digital Workplace
concurrent users | Number of managed devices | BMC Digital Workplace server requirements | MongoDB server requirements |
---|---|---|---|---|
Proof of concept (POC) | 100 | 1,000 or fewer | 1 server for BMC Digital Workplace and Smart IT and for MongoDB:*
| Not Applicable (Share the same server as BMC Digital Workplace and Smart IT server) |
Small | 1500 | 15,000 or fewer | 2-node BMC Digital Workplace and Smart IT cluster:
| 3-node MongoDB replica set cluster:
|
Medium | 4500 | 45,000 or fewer | 4-node BMC Digital Workplace cluster:
| 3-node MongoDB replica set cluster:
|
Large | 7500 | 75,000 or fewer | 6-node BMC Digital Workplace cluster:
| 3-node MongoDB replica set cluster:
|
* RDB required by BMC Digital Workplace and Smart IT should be on a separate server for relational database.
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