Cisco Headend System Release 2.7 Installation Guide
Chapter 2 Backup Recommendations
6
System Backup Frequency
System operators can ensure the integrity of their data only by adhering to a regular
schedule of database and file system backups. The recommendations in this section
provide some guidance regarding the frequency with which system backups should
occur. Adjust these recommendations, if necessary, according to the size of the
system and the frequency with which the data changes.
schedule of database and file system backups. The recommendations in this section
provide some guidance regarding the frequency with which system backups should
occur. Adjust these recommendations, if necessary, according to the size of the
system and the frequency with which the data changes.
Full System Backup
A full system backup refers to a backup of the file systems and the database.
A full system backup refers to a backup of the file systems and the database.
System operators should perform a complete system backup prior to making any
substantial modification to the system.
substantial modification to the system.
In addition, system operators should perform a complete system backup just prior to
upgrading to new system software, as well as immediately after the acceptance sign-
off. The backup just prior to the upgrade can be used in case there is a catastrophic
failure of the upgrade.
upgrading to new system software, as well as immediately after the acceptance sign-
off. The backup just prior to the upgrade can be used in case there is a catastrophic
failure of the upgrade.
Informix Database and Key Files Backup
The Informix database and key files contain all headend configuration information,
as well as data needed to provision and authorize Digital Home Communication
Terminals (DHCTs). System operators should perform a complete backup of the
Informix database once a day. In addition, system operators should perform a
complete backup of the database immediately before and after a channel lineup
change or a major system configuration change.
Note: Beginning with BR 6.0.x, you can now back up the database to a file without
stopping system components. Even though you are no longer required to stop
system components to perform a database backup to a file system, our engineers
highly recommend that you schedule backups during periods of lowest system
activity.
The Informix database and key files contain all headend configuration information,
as well as data needed to provision and authorize Digital Home Communication
Terminals (DHCTs). System operators should perform a complete backup of the
Informix database once a day. In addition, system operators should perform a
complete backup of the database immediately before and after a channel lineup
change or a major system configuration change.
Note: Beginning with BR 6.0.x, you can now back up the database to a file without
stopping system components. Even though you are no longer required to stop
system components to perform a database backup to a file system, our engineers
highly recommend that you schedule backups during periods of lowest system
activity.
File System Backup
System operators should perform a complete backup of the DBDS file systems once a
week.
Note: You can now back up the file system of the DBDS without shutting down the
system components. Our engineers highly recommend that you schedule your file
system backups for periods of lowest system activity.
System operators should perform a complete backup of the DBDS file systems once a
week.
Note: You can now back up the file system of the DBDS without shutting down the
system components. Our engineers highly recommend that you schedule your file
system backups for periods of lowest system activity.