Cisco Headend System Release 2.7 Release Notes

Page of 30
 
Chapter 2    Site Requirements 
 
 
 
4038417 Rev A 
Upgrade Logistics 
Introduction 
This section contains information that can help system operators plan the upgrade to 
SR 2.8.2/3.8.2/4.3.2. 
 
Supported Upgrade Path 
Note these important upgrade requirements: 
 
Systems that upgrade to SR 2.8.2/3.8.2/4.3.2 must currently be operating with 
system software from SR 4.3 or later, as well as DHCT client operating system 
(OS) 3.1 or later.  
 
The upgrade software is on CD. For upgrade instructions, refer to System Release 
2.8.2/3.8.2/4.3.2 CD Upgrade Installation Guide 
(part number 4038415). Rollback 
procedures and software are also provided in the event that the upgrade is 
unsuccessful. 
 
You must already have the DBDS Utilities software installed on the DNCS and 
should have already run the pre-upgrade checks to ensure system compatibility 
with SR 2.8.2/3.8.2/4.3.2 CD upgrade requirements. Refer to DBDS Utilities 
Version 6.3 Installation Instructions and User Guide 
(part number 4031374) for 
instructions on installing and executing the DBDS Utilities. 
 
Time to Complete 
The entire upgrade to SR 2.8.2/3.8.2/4.3.2 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. 
Cisco engineers have determined that a typical site can be upgraded within one 
maintenance window. See Scheduling Requirements (on page 9) for additional 
details. 
 
System Performance Impact 
Interactive services will not be available during the maintenance window.