Cisco Headend System Release 2.5 User Guide
4001155 Rev B
Backing Up and Restoring the Informix Database
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Chapter 3
Backing Up and Restoring the Informix Database
Overview
Introduction
The Informix database on the DNCS contains all headend configuration information,
as well as data needed to provision and authorize DHCTs. Cisco recommends that
you back up your Informix database once a day.
Some large systems require more than one tape when backing up the database. The
Some large systems require more than one tape when backing up the database. The
backup script prompts you to insert another tape at the appropriate time if your
backup requires an additional tape.
Use seven tapes (or seven sets of tapes), one for each day of the week, when you
Use seven tapes (or seven sets of tapes), one for each day of the week, when you
back up your database.
Note: You do not have to shut down the DNCS or the Application Server in order to
Note: You do not have to shut down the DNCS or the Application Server in order to
back up your Informix database. All system components can be running while you
back up the database.
When to Back Up the Database
Cisco recommends that you back up your Informix database early in the morning or
late at night, when system activity is usually at a minimum.
Back up your database before your billing system uploads subscriber impulse pay-
Back up your database before your billing system uploads subscriber impulse pay-
per-view (IPPV) purchases from your DNCS. By backing up your database before
your billing system uploads IPPV purchases, you have a record of subscriber
purchases in the event that the billing system loses this data.
Avoid backing up your database while you are performing the following system tasks:
•
Avoid backing up your database while you are performing the following system tasks:
•
Running the Interactive Program Guide (IPG) Collector
•
Loading an Entitlement Management Message (EMM) CD
•
Staging DHCTs
•
Downloading IPPV events
In This Chapter
This chapter contains the following topics.
Topic
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