Contributed By: Cliff Hobbs [MVP SMS]
Reproduced from the MOM 2005 Installation and Upgrade Guide:

"When you install MOM 2005, the account you use to install MOM components must have administrator credentials. Additionally, you must create and configure two domain accounts in preparation for installing the MOM Database and the Management Server components:

Note

• It is recommended that you use different accounts for the MOM Management Server Action account and the Data Access Server (DAS) account.

MOM Management Server Action account

This account is used to install agents by default, run computer discovery, and collect and process data from the Management Server.

Example

Create a domain user account called momaction in your domain. The setup program will automatically grant all the appropriate permissions to this account on the Management Server.

Data Access Server (DAS) account

This account provides centralized access to the MOM database. By default, MOM will assign the account you specify during setup to the correct security group and Microsoft SQL Server™ role for the DAS.

Example

Create a domain user account called momdas in your domain. The setup program will automatically grant all the appropriate permissions to this account.

Note

• If you are installing the MOM 2005 Workgroup Edition, this account is not necessary.