Migration example: one Device Adapter cluster for CS 1000

Last Updated : Jan 06, 2021 |
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The following description is an example of a migration of a three-site CS 1000 installation into a geographically redundant pair with branch survivability.

Existing CS 1000 installation

The existing CS 1000 installation consists of three sites: Main Site, M Site, and Q Site. The Main Site migrates from CS 1000.1. The M Site migrates from CS 1000.2. The Q Site migrates from CS 1000.3.

Post-migration topology

The Main Site and M Site are configured as a geographically redundant pair.
  • A System Manager is configured on each site as a geographically redundant pair.
  • A Duplex Communication Manager is configured.
  • A pair of Session Managers is configured on each site.
  • A high availability Device Adapter cluster is configured on each site.
  • Two Profile 4 Virtual Machines provide highly available Device Adapter service for up to 5000 endpoints.
  • Each additional Profile 4 Virtual Machine adds support for an additional 5000 endpoints.
  • All resources on the Main Site and M Site are engineered to be able to handle all endpoints from the solution across all sites.
The Q Site is configured as a survivable branch.
  • An LSP / Survivable Core is configured.
  • A Branch Session Manager is configured.
  • A high availability Device Adapter cluster is configured.
  • Two Profile 4 Virtual Machines provide highly available Device Adapter service for up to 5000 endpoints.
  • Each additional Profile 4 Virtual Machine adds support for an additional 5000 endpoints.
  • All resources in the Q Site are engineered to be able to handle all endpoints on the Q Site only.
Note:
This migration involves three CS 1000 systems. Using three separate Device Adapter clusters minimizes the administration involved in the migration.
The following diagram is the topology of the post-migration configuration.