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Hardware requirements

The following topics are provided:

Note

The sizing guidelines provided in this topic are for MyIT only. The sizing guidelines for MyIT and BMC Remedy with Smart IT (Smart IT) together are provided in Hardware requirements in the BMC Remedy ITSM Deployment online documentation.

MyIT server cluster

To calculate the size of the environment required for MyIT, BMC uses the following factors:

  • Total number of users
  • Estimated concurrent connections (usually 10% of the total users)

BMC recommends that you have one MyIT 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 MyIT 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% / 1,500) + 1 = Number of MyIT servers

For example, for 75,000 users, the formula would look like this:

(75,000 users X 10% / 1,500) + 1 = 5 + 1 = 6 MyIT servers

The above formula applies up to total of 90,000 users.

MongoDB cluster

The MongoDB cluster requires specific cluster setup to support high availability (HA). For the sizing recommendations for the small (1,500 users), medium (4,500 users) and large (7,500 users) environments, use a replica set configuration of 1 primary and 2 secondary servers.

The sizing recommendations table below includes BMC’s 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 MyIT.

Note

These guidelines are only for the MyIT application. For sizing guidelines of MyIT and BMC Remedy with Smart IT (Smart IT) together, see Hardware requirements in the BMC Remedy ITSM Deployment online documentation.

EnvironmentNumber of MyIT
concurrent users
Number of
managed devices
MyIT server requirements

MongoDB server requirements
(no sharing)

Proof of concept (POC)1001,000 or fewer

1 server for both MyIT and MongoDB:*

  • 4 CPU core
  • 16 GB RAM
  • 120 GB disk
Not applicable
(Share the same server as the MyIT server)
Small1,50015,000 or fewer

2-node MyIT cluster:

  • 2 CPU core
  • 4 GB RAM
  • 60 GB HD

3-node MongoDB replica set cluster:

  • 2 CPU core
  • 8 GB RAM
  • 80 GB SSD (Mongo 3.x WiredTiger)
Medium4,50045,000 or fewer 

4-node MyIT cluster:

  • 2 CPU core
  • 4 GB RAM
  • 60 GB HD

3-node MongoDB replica set cluster:

  • 4 CPU core
  • 8 GB RAM
  • 120 GB  SSD (Mongo 3.x WiredTiger)
Large7,50075,000 or fewer

6-node MyIT cluster:
2 CPU core
4 GB RAM
60 GB HD

3-node MongoDB replica set cluster:

  • 4 CPU core
  • 16 GB RAM
  • 200 GB SSD (Mongo 3.x WiredTiger)

*RDB required by MyIT should be on a separate server for relational database.

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Comments

  1. Alexey Dyukov

    Please correct "rge" in Enviroment column.

    Jun 09, 2017 03:41
    1. Michele Marques

      That should say "Large". I am investigating why, but in FireFox and Chrome, I do see "Large" - but in IE, I see "rge" as you do.

      Jun 09, 2017 10:23