Cisco Headend System Release 2.5 Installation Guide
Chapter 1 Install the DBDS Utilities
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Check the EMM Deletion Method
Introduction
Your system is designed to automatically delete unneeded EMMs through a
reference to the dbOptimizer program in the crontab file. The crontab file contains
calls to programs that run automatically, without operator intervention. The
installation process of DBDS Utilities requests that you specify the method your
system will use to delete unneeded EMMs. Before installing the latest version of
DBDS Utilities, take a few minutes to run this procedure to determine the EMM-
deletion method in use on your system. Possible choices are deletion based upon the
age of the EMMs, or deletion based upon impulse pay-per-view (IPPV) purchases.
reference to the dbOptimizer program in the crontab file. The crontab file contains
calls to programs that run automatically, without operator intervention. The
installation process of DBDS Utilities requests that you specify the method your
system will use to delete unneeded EMMs. Before installing the latest version of
DBDS Utilities, take a few minutes to run this procedure to determine the EMM-
deletion method in use on your system. Possible choices are deletion based upon the
age of the EMMs, or deletion based upon impulse pay-per-view (IPPV) purchases.
Important! Cisco is withdrawing support for deletion of EMMs based upon IPPV
purchases. Beginning with version 4.1 of DBDS Utilities, all sites should configure
their system to delete EMMs based upon the age of the EMMs.
purchases. Beginning with version 4.1 of DBDS Utilities, all sites should configure
their system to delete EMMs based upon the age of the EMMs.
Note: You can skip this procedure if you know for certain that your system deletes
EMMs based upon the age of the EMMs.
EMMs based upon the age of the EMMs.
Checking the EMM Deletion Method
Follow these instructions to inspect the crontab file to determine how your system
deletes unneeded EMMs. If your system deletes EMMs based upon IPPV purchases,
you need to reconfigure your system to delete EMMs based upon the age of the
EMMs.
1 From an xterm window on the DNCS, type crontab -l and then press Enter. The
deletes unneeded EMMs. If your system deletes EMMs based upon IPPV purchases,
you need to reconfigure your system to delete EMMs based upon the age of the
EMMs.
1 From an xterm window on the DNCS, type crontab -l and then press Enter. The
system displays the contents of the crontab file.
Note: The "l" is a lowercase L.
Note: The "l" is a lowercase L.
2 Inspect the crontab file for an entry similar to one of the following examples:
$DNCS_TOP/bin/dbOptimizer -d 'cat /dvs/dncs/bin/CED.in'
Note: This method deletes EMMs based upon the age of the EMMs.
Note: This method deletes EMMs based upon the age of the EMMs.
$DNCS_TOP/bin/dbOptimizer > /dvs/dncs/tmp/dbOptimizer.out 2>&1
Note: This method deletes EMMs based upon IPPV purchases.
Note: This method deletes EMMs based upon IPPV purchases.
3 Does your system delete unneeded EMMs based upon the age of the EMMs?
If yes, go to step 4; you need to determine how old the EMMs must be before
the system deletes them.
the system deletes them.
If no (they are deleted based upon IPPV purchases); go to DBDS Utilities
Installation Instructions, next in this chapter. During the course of the
installation, you need to reconfigure your system to delete EMMs based
upon the age of the EMMs.
Installation Instructions, next in this chapter. During the course of the
installation, you need to reconfigure your system to delete EMMs based
upon the age of the EMMs.