Cisco Headend System Release 2.7 Installation Guide

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Introduction 
Follow the procedure in this chapter only if you have upgraded a Sun 
Fire V880 or V890 DNCS or a a Sun Fire V240 or V245 Application 
Server during the upgrade to SR i4.2.2. 
Important:  Be sure that you complete this procedure during the 
current maintenance window on the night of the server upgrade. If 
you wait until the following night to complete this procedure, the 
server will operate an entire day without its disk-mirroring functions 
in place. 
Important Note to Consider 
You should follow the procedure in this chapter only under one of the 
following circumstances: 
 
You are satisfied with the upgrade and want to commit the system 
changes 
Note:  Rolling back an upgrade after completing the procedure in 
this chapter is time consuming and takes more effort. 
 
You have rolled back from an unsuccessful upgrade and want to 
synchronize the mirrors 
 
 
 
Chapter 5 
Enable Disk Mirroring 
In This Chapter 
 
Attach Mirrors ..................................................................................... 106