Cisco Headend System Release 3.2 Installation Guide
Process Overview
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9 Take all of the Disaster Recovery jobs off of hold. See Take Disaster Recovery
Jobs Off Hold (on page 102).
Note: Verify that Disaster Recovery Near Real Time Syncs and Periodic Syncs are
successful. These two syncs will keep the data between the Primary DNCS and
Standby DNCS synchronized until the maintenance window opens and the
Disaster Recovery Switch-Over is performed. It is strongly recommended that
the customer not modify any of the DBDS elements (QAMs, QPSKs, Netcrypts,
etc.) as well as no modification of the logical DBDS entities (channel maps,
sources, services etc.). The Disaster Recovery Near Real Time Sync and Periodic
Sync processes will only keep DHCT-related data/configs and Impulse Pay-Per-
View events and purchase data synchronized between the Primary DNCS and
Standby DNCS.
Note: Verify that Disaster Recovery Near Real Time Syncs and Periodic Syncs are
successful. These two syncs will keep the data between the Primary DNCS and
Standby DNCS synchronized until the maintenance window opens and the
Disaster Recovery Switch-Over is performed. It is strongly recommended that
the customer not modify any of the DBDS elements (QAMs, QPSKs, Netcrypts,
etc.) as well as no modification of the logical DBDS entities (channel maps,
sources, services etc.). The Disaster Recovery Near Real Time Sync and Periodic
Sync processes will only keep DHCT-related data/configs and Impulse Pay-Per-
View events and purchase data synchronized between the Primary DNCS and
Standby DNCS.
10 Customer needs to make Go/No-Go decision regarding whether to proceed with
the Switch-Over to the Standby DNCS during the next maintenance window.
11 Perform a Disaster Recovery Switch-Over. This process makes the Standby
DNCS the Active DNCS and the Primary DNCS the Inactive DNCS.
12 Verify that the Switch-Over was successful by:
a Verifying that the correct network switch ports on the Primary DBDS
isolation network switch are down and that the correct network switch ports
on the Standby DBDS isolation network switch are up.
on the Standby DBDS isolation network switch are up.
b Verifying that the Disaster Recovery "bit-bucket" and "QAM emulation
gateway" are no longer present in the Standby DNCS routing table. The bit-
bucket IP address is 192.168.1.4 and the "QAM emulation gateway" address is
the Standby MC IP address.
bucket IP address is 192.168.1.4 and the "QAM emulation gateway" address is
the Standby MC IP address.
- netstat -rvn |grep 192.168.1.4
Note: You should not see any occurrence of 192.168.1.4 in the routing table. If
you do, you will want to flush the routing table and then setup the correct
routes by executing the /etc/rc2.d/S82atminit file.
- route -f
- netstat -rvn |grep <Standby MC IP Address>
Note: You should not see any occurrence of the Standby MC IP address in
the routing table. If you do, you will want to flush the routing table and then
setup the correct routes by executing the /etc/rc2.d/S82atminit file.
Note: You should not see any occurrence of 192.168.1.4 in the routing table. If
you do, you will want to flush the routing table and then setup the correct
routes by executing the /etc/rc2.d/S82atminit file.
- route -f
- netstat -rvn |grep <Standby MC IP Address>
Note: You should not see any occurrence of the Standby MC IP address in
the routing table. If you do, you will want to flush the routing table and then
setup the correct routes by executing the /etc/rc2.d/S82atminit file.
13 On the Standby DBDS System, verify that a DHCT can boot and can receive
advanced services (VOD, IPG, xOD, SDV, etc.). You will want to boot and verify
SARA, Aptive/Pioneer, and MDN/ODN DHCTs if you have them. You will also
want to verify billing server connectivity. Troubleshoot any issues before
proceeding.
SARA, Aptive/Pioneer, and MDN/ODN DHCTs if you have them. You will also
want to verify billing server connectivity. Troubleshoot any issues before
proceeding.
14 Customer needs to make Go/No-Go decision regarding whether to proceed or
Switch-Back to the Primary DNCS.