Cisco Headend System Release 2.7 Installation Guide
Chapter 1 Preparing to Install the Software
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Information You Should Know
This section provides information you need to know before installing the software.
Review the information in this section to ensure a successful installation.
Review the information in this section to ensure a successful installation.
What Are the Site Requirements?
The procedures in this guide apply to systems running System Release (SR)
2.7/3.7/4.2 Service Pack 2 (SP2) Patch 9 or later along with Solaris 10.
2.7/3.7/4.2 Service Pack 2 (SP2) Patch 9 or later along with Solaris 10.
What Skills and Expertise Are Required?
System operators or engineers who upgrade the SARA server software need
advanced knowledge of the UNIX vi editor. To install the software, you may need to
use the UNIX vi editor to modify the parameters of some files. The UNIX vi editor is
not intuitive. The instructions provided in this document are not a substitute for an
advanced working knowledge of the vi editor.
advanced knowledge of the UNIX vi editor. To install the software, you may need to
use the UNIX vi editor to modify the parameters of some files. The UNIX vi editor is
not intuitive. The instructions provided in this document are not a substitute for an
advanced working knowledge of the vi editor.
When Is the Best Time to Upgrade the Software?
The optimum time to upgrade your system is when you are least likely to intrude on
subscribers’ purchasing opportunities and least likely to impact your revenue-
generating opportunities.
subscribers’ purchasing opportunities and least likely to impact your revenue-
generating opportunities.
Traditionally, upgrades have been done during the night between 11:00 p.m. and
6:00 a.m. However, systems can be upgraded anytime during the day or night. You
know your system and the habits of your subscribers better than anyone else. If you
determine that there is a lot of xOD, VOD, or PPV revenue-generating activity on
your system during the nighttime hours, you may opt to upgrade your system
sometime during the day. For example, you may determine that there is little
interactivity or few revenue-generating opportunities occurring in the early morning
hours. This may be the best time to upgrade your system. Your subscriber base can
continue to watch digital broadcasts (as long as the DHCT is not rebooted) and
analog TV programs, without interruption, while the system is being upgraded.
6:00 a.m. However, systems can be upgraded anytime during the day or night. You
know your system and the habits of your subscribers better than anyone else. If you
determine that there is a lot of xOD, VOD, or PPV revenue-generating activity on
your system during the nighttime hours, you may opt to upgrade your system
sometime during the day. For example, you may determine that there is little
interactivity or few revenue-generating opportunities occurring in the early morning
hours. This may be the best time to upgrade your system. Your subscriber base can
continue to watch digital broadcasts (as long as the DHCT is not rebooted) and
analog TV programs, without interruption, while the system is being upgraded.