GRASS VALLEY K2 BASECAMP EXPRESS, Installation And Service Manual

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3. Log on to Server Control panel with administrator-level permissions. The Server Control Panel
opens.
4. Determine if the local machine is currently the primary K2 Media Server or the backup K2 Media
Server.
If the K2 SAN does not have redundant servers, only one server (the left half of the Server Control
Panel) is displayed.
For the K2 Media Servers of a Nearline K2 SAN, Server Control Panel on the local K2 Media
Server reports if the server is the current active media file system (SNFS) server. No metadata
information is displayed, since the Nearline system does not have a media database.
Triggering an intentional failover
WARNING: Do not attempt this procedure except under the supervision of qualified Grass
Valley personnel.
The following procedure renders the primary K2 Media Server unqualified to carry out its role in
managing the K2 SAN. The backup K2 Media Server detects this condition and triggers a failover
in which it takes the primary server out of service and takes control of the K2 SAN. Therefore,
before using these procedures, verify that the backup K2 Media Server is fully operational and
qualified to take control of the K2 SAN. Be aware that the failover capabilities of the -K2 SAN are
degraded until you place the machine back into service as the backup K2 Media Server.
You should stop all media access before attempting this procedure. If media access is underway,
there will be period of time in which media loss will occur.
In the following procedures, K2server1 and K2server2 represent your redundant K2 Media Servers.
The procedure begins with K2server1 acting as the primary K2 Media Server.
1. Verify primary/backup roles and make sure K2server2 (the backup) is qualified and ready to
become primary.
2. From the K2Config application, open
Server Control Panel
.
3. In Server Control Panel for K2server1 click
Stop
. This triggers the failover process.
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.
02 February 2012 K2 SAN Installation and Service Manual 283
Administering and maintaining the K2 SAN