Cisco Headend System Release 2.7

 

38 

4012155 Rev B 

This section contains information that can help system operators plan the upgrade to 
SR 2.7. 

 

Note these important upgrade requirements: 

 

Systems that upgrade to SR 2.7 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 2.7 and other time saving factors. Rollback 
procedures and software are included in the UniPack installation instructions in 
the event that the upgrade is unsuccessful. 

 

Cisco field service engineers or the system operator must have already installed 
the DNCS Utilities software onto the DNCS and should have already run the 
pre-upgrade checks to ensure system compatibility with SR 2.7 UniPack upgrade 
requirements. Refer to DNCS Utilities Installation and Operation Guide for 
instructions on installing and executing the DNCS Utilities. 

Important: With the release of SR 2.7, Cisco introduces Live Upgrade with the 
Unipack. Through the use of Live Upgrade, engineers can upgrade an Enterprise 450 
and Sun Fire V880 server without shutting down the system processes until you 
activate the new system software. 

 

The actual upgrade to SR 2.7 must be completed from within a 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. 

Cisco engineers have determined that a typical site can be upgraded within one 
maintenance window. See Scheduling Requirements (on page 42) for additional 
details. 

 

Interactive services will not be available during the maintenance window.