Grass Valley K2 Summit Storage Area Network v.7.1 - Manual (Page 405)

405 K2 Storage Area Network Installation and Service Manual 26 October 2009
Chapter 12 Administering and maintaining the K2 SAN
K2server1 shuts down. K2server2 detects (via the absence of the heartbeat signal
on the serial cable) that K2server1 is gone, so K2server2 takes over as primary.
4. Allow the failover process to complete, until K2server2 is operating correctly in its
new role as the primary K2 Media Server for the K2 SAN.
5. Verify K2server2 as primary.
6. Start up K2server1. It is now out of service. If you need to do service work on
K2server1, you can do it now. After your work is complete, proceed with the next
step.
7. If there are K2 Media Servers with role of iSCSI bridge or Fibre Channel switches
on the same redundant “side” as K2server1, start or restart them.
8. In Server Control Panel, for K2server1, click Start . This notifies K2server2 (via a
heartbeat signal on the serial cable) that K2server1 is coming online as backup.
9. Verify K2server1 as backup.
10. All failover processes are complete. All media management mechanisms are now
running and K2server1 is now qualified and acting as the backup.
Recovering from a failover
WARNING: Do not attempt this procedure except under the
supervision of qualified Grass Valley personnel.
In the following procedures, K2server1 and K2server2 represent your redundant K2
Media Servers. The procedure begins with K2server1 being the server on the failed
side of the SAN. K2server2 is acting as the primary K2 Media Server.
1. Verify primary/backup roles and make sure K2server2 is the primary.
2. Start up K2server1. It is now out of service.
3. Determine the cause of the failover and take corrective action as necessary. If you
need to do service work on K2server1 or other devices on the failed side of the
SAN, you can do it now. After your work is complete, proceed with the next step.
4. If there are K2 Media Servers with role of iSCSI bridge, Ethernet switches, or Fibre
Channel switches on the same redundant “side” as K2server1, start or restart them.
Make sure they have been started up at least once before putting K2server1 into
service. Follow the power up sequence in
“Power on and power off procedures” on
page 357 .
5. In Server Control Panel, for K2server1, click Start . This notifies K2server2 (via a
heartbeat signal on the serial cable) that K2server1 is coming online as backup.
6. Verify K2server1 as backup.
7. All failover processes are complete. All media management mechanisms are now
running and K2server1 is now qualified and acting as the backup.
!