ADS, ADS-Lite, and non-server based OAS requirements - Metasys - LIT-12011279 - General System Information - Metasys System - 13.0

Network and IT Guidance Technical Bulletin

Brand
Metasys
Product name
Metasys System
Document type
Technical Bulletin
Document number
LIT-12011279
Version
13.0
Revision date
2023-09-29
Product status
Active
Language
English

The ADS/ADS-Lite or OAS on a desktop operating system does not come with, and does not require, device or user CALs. Only the Metasys servers with server operating systems require CALs.

To avoid ADS/ADS-Lite or non-server based OAS connection and network communication performance issues, the number of users and the number of network engines and ADS/ADS-Lite or non-server based OAS computers that transfer trend data, event messages, and audit messages must not exceed 15. The maximum number of engines is between ten and fourteen depending on the number of simultaneous users supported on the system. Ten engines support a maximum of five simultaneous users. Fourteen engines support one user. If a Metasys site with a single ADS/ADS-Lite or non-server based OAS configured as the Site Director and default repository exceeds that number of connections, consider one of the following options:

  • Configure one ADS/ADS-Lite or non-server based OAS to be the Site Director. Install and configure another ADS/ADS-Lite or non-server based OAS (or more) to provide the ADS repository function. When you install a separate ADS/ADS-Lite or non-server based OAS to provide the repository function, it allows you to dedicate five connections on the alternate ADS/OAS for system users and another five connections on the alternate ADS/ADS-Lite or non-server based OAS to network engines and ADS/ADS-Lite or non-server based OAS computers for transferring trend data, event messages, or audit messages.

    Note: The ADS/OAS cannot be the Site Director for another ADS/ADS-Lite or non-server based OAS of any type.
  • Migrate to an ADX or server-based OAS. Configure the Windows Server of the ADX/OAS computer with the number of CALs equal to the total number of users or devices accessing the ADX/OAS.

Refer to the Metasys® System Configuration Guide (LIT-12011832) for performance guidelines and limitations.