Cisco Headend System Release 2.7 Release Notes

 

20 

4019364 Rev B 

This section contains information that can help system operators plan the upgrade to 
SR 2.8. 

 

Note these important upgrade requirements: 

 

Systems that upgrade to SR 2.8 must currently be operating with system 
software from SR 2.2 or SR 3.2, or later, as well as DHCT client operating system 
(OS) 3.1 or later. The upgrade software is contained in a UniPack due to 
significant changes contained in SR 2.8 and other time saving factors. Rollback 
procedures and software are included in the UniPack installation instructions in 
the event that the upgrade is unsuccessful. 

 

You must already have the DNCS Utilities software installed onto the DNCS and 
should have already run the pre-upgrade checks to ensure system compatibility 
with SR 2.8 UniPack upgrade requirements. Refer to DNCS Utilities Installation 
and Operation Guide for instructions on installing and executing the DNCS 
Utilities. 

Important: You can now use Live Upgrade with the UniPack. Through the use of 
Live Upgrade, engineers can upgrade without shutting down the system processes 
until you activate the new system software. 

 

The actual upgrade to SR 2.8 must be completed within a single maintenance 
window that usually starts around midnight. A few pre-upgrade procedures, 
consisting mainly of system checks, backups, and various operations upon the 
metadevices of the DNCS, can be completed before the maintenance window begins. 

Our engineers have determined that a typical site can be upgraded within one 
maintenance window. See Scheduling Requirements (on page 24) for additional 
details. 

 

Interactive services will not be available during the maintenance window.