Cisco Headend System Release 2.7 Release Notes
Replicated Database
4035750 Rev A
11
Replicated Database
The Replicated Database (RepDB) package has two components:
The IBM Informix Dynamic Server Data Replication for the database
The rsync utility — a fast and versatile remote file-copying tool for file systems
Data replication allows a copy of the database from a primary server to be
maintained on a secondary server. When activated, the primary database server
continuously replicates data between itself and the secondary server by sending
copies of the logical-log transactions to the secondary database server.
maintained on a secondary server. When activated, the primary database server
continuously replicates data between itself and the secondary server by sending
copies of the logical-log transactions to the secondary database server.
The rsync utility allows a copy of file systems from a primary server to be
maintained on a secondary server. When activated, the rsync utility periodically
synchronizes files and directories from the primary server to the secondary server.
maintained on a secondary server. When activated, the rsync utility periodically
synchronizes files and directories from the primary server to the secondary server.
Additionally, RepDB addresses Mean Time to Recovery (MTTR) and is the
replacement for Disaster Recovery, which is being EOL'd.
replacement for Disaster Recovery, which is being EOL'd.
For more information, see Installing and Operating the Replicated Database Package on
the DNCS Installation Guide (part number 4034803).
the DNCS Installation Guide (part number 4034803).