Grass Valley K2 Storage System Instruction Manual v.3.3 - Manual (Page 481)

June 25, 2009 K2 Storage System Instruction Manual 481
Using the Stop button in Server Control Panel
Using the Stop button in Server Control Panel
In Server Control Panel, the following behaviors occur when using the Stop button.
For Nearline K2 Storage Systems, the Server Control Panel is not available from the
K2 System Configuration application.
Placing a K2 Media Server in service
This procedure applies to K2 Media Servers that are taking the role of media file
system and database server.
When you put a K2 Media Server in service you start the failover service software.
This makes the K2 Media Server capable of taking the role of media file system and
database server. If a redundant K2 Media Server is currently in service as primary,
placing the backup K2 Media Server in service triggers the media database replication
process, in which the media database on the backup is synched up with the media
database on the primary.
On K2 Storage Systems with redundant K2 Media Servers in the role of media file
system and database server, you must manually place the server in service whenever
you power up or restart the server. This is because the Failover Monitor service—
which must be running to qualify the server in the role of media file system and
On a system with this
configuration of K2
Media Servers taking
the role of media file
system/database
server…
With server(s) in this
state…
When you click
the Stop button
on this server…
The following behavior
occurs.
Redundant servers Both primary and
backup are in service
(online) Primary The server automatically
powers itself down. This
causes a failover event to
occur and the backup server
becomes primary. When
you restart the former
primary server, it comes up
out of service.
Backup The server automatically
powers itself down. When
you restart the server, it
comes up out of service.
Redundant servers Only the primary is in
service. The other
server is either shut
down or it is powered
on but out of service. Primary The media file system
services stop, but the server
continues to run. It does not
automatically shut down.
The server is now out of
service.
One (non-redundant)
server The server is in service Primary (the only
server) The media file system
services stop, but the server
continues to run. It does not
automatically shut down.
The server is now out of
service.