Cisco Headend System Release 2.7 Installation Guide
4020695 Rev C
7
Introduction
The dbOptimizer program was developed to delete EMMs that are no
longer needed by DHCTs. Most EMMs are assigned to DHCTs during
the staging process when DHCTs are prepared for deployment in the
homes of subscribers. These EMMs are also stored in the database of
the DNCS. When a DHCT has been successfully staged, those EMMs
associated with the staging process are no longer needed and should
be removed from the DNCS database.
longer needed by DHCTs. Most EMMs are assigned to DHCTs during
the staging process when DHCTs are prepared for deployment in the
homes of subscribers. These EMMs are also stored in the database of
the DNCS. When a DHCT has been successfully staged, those EMMs
associated with the staging process are no longer needed and should
be removed from the DNCS database.
The dbOptimizer program is configured to run by default each
Saturday at 4 AM. For sites with heavy video-on-demand (VOD)
activity, however, this may not be the best choice. The system operator
at those sites should move execution of the dbOptimizer program to
when system activity is at its lowest.
Saturday at 4 AM. For sites with heavy video-on-demand (VOD)
activity, however, this may not be the best choice. The system operator
at those sites should move execution of the dbOptimizer program to
when system activity is at its lowest.
The procedures in this chapter describe how to run this utility
manually, as well as how to change when the utility is run.
manually, as well as how to change when the utility is run.
Screen-Captured Images
Some of the screens or illustrations displayed in this chapter may not
match exactly what appears on the system you are operating. Software
version numbers, build numbers, and data may vary from site to site.
match exactly what appears on the system you are operating. Software
version numbers, build numbers, and data may vary from site to site.
2
Chapter 2
Delete Unneeded EMMs with
the dbOptimizer Program
the dbOptimizer Program
In This Chapter
The dbOptimizer Options ...................................................................... 8
List EMMs by Age .................................................................................. 9
Deletion of EMMs Based Upon Age .................................................. 11
Change the crontab Entry .................................................................... 13