Cisco Headend System Release 2.5 Installation Guide

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Chapter 6    Commit the Upgrade 
 
 
 
116 
4042225 Rev A 
Attach Mirrors 
Before starting this procedure, inform the system operator that completing this 
procedure commits the upgrade. Any attempt to roll back from the upgrade after the 
mirrors are attached will take up to 4 hours to complete. Additionally, the rollback 
procedure cannot be performed during the current night and will have to be 
performed during a maintenance window tomorrow. 
 
Attaching Mirrors 
Follow this procedure to run a script that attaches submirrors to their respective 
mirrors and creates all necessary hot spare disks. 
1  Insert the SR 5.0 DVD into the DVD drive of the applicable server. 
2  Type the following command and press Enter. A list of the mounted filesystems 
appears. 
df  -n
 
Note:  The presence of /cdrom in the output confirms that the system correctly 
mounted the DVD. 
3  In a root xterm window on the DNCS, type the following command and press 
Enter. A confirmation message appears. 
/cdrom/cdrom/sai/scripts/attach_mirrors
 
4  Type and then press Enter. The system executes a script that attaches 
submirrors to their respective mirrors and creates all necessary hot spare disks. 
Note:  It may take several hours to execute the attach_mirrors script. 
5  When disk mirroring completes, type the following command and press Enter
eject cdrom
  
6  Repeat steps 1 through 5 to attach the mirrors on any other applicable server.