Grass Valley K2 InSync v.4.0 - Manual (Page 6)

August 4, 2008 K2 InSync User Guide 6
Using K2 InSync
Introducing K2 InSync
Regardless of how reliable any broadcast device is, for mission-critical applications
like broadcast, many facilities require full redundancy in their play-to-air servers.
Disk mirroring, normally the responsibility of the controlling application, can add
significantly to the complexity of the application. With K2 InSync, mirroring is
accomplished within the K2 system. K2 InSync ensures that the contents of two
systems are maintained as a mirrored pair. In the event of a failure the user routes
control of replay function to the slave system, which K2 InSync keeps synchronized
with the master.
K2 InSync can also provide bi-directional mirroring between two K2 systems. In this
mode K2 InSync allows each system to operate as a master system while serving as
slave to the other.
K2 System requirements
• K2 InSync and K2 system software versions must be compatible. Refer to K2
Media Client Release Notes and K2 InSync Release Notes for software
compatibility information.
• Fibre Channel or Ethernet video network must be installed and configured, such
that the K2 AppCenter application can make transfers between the K2s. For
information about configuring a network, see the K2 Media Client System Guide.
• K2 InSync must be installed on the master K2. It can also be installed on the slave
K2, but it should not be run simultaneously on both.
NOTE: Grass Valley recommends that the storage capacity of the master and slave
K2 systems be the same. If the capacity of the slave unit is smaller, you must
carefully manage the backup of material to avoid exceeding the storage capacity of
the slave K2. You can use filters or specify a bin to avoid filling up a smaller system.
Exceeding the capacity of the slave K2 can result in the excess material not being
backed up.
Operational considerations when using K2 InSync
When using K2 InSync, keep in mind the following considerations:
• When using the bi-directional mirroring mode with initial duplicate, the clips in the
master K2’s Recycle bin are mirrored on the slave K2. If you do not want the
Recycle Bin clips mirrored, select
Organize Bins | Recycle Bin in K2 AppCenter and
check the option to delete clips immediately.
• When you are using the bi-directional mirroring mode, do not create (or allow an
automation program to create), a clip with the same name in the same directory at
the same time on both units. Doing so can result in the loss of one of the clips
created.
• When you are using the bi-directional mirroring mode, do not edit the same clip in
the same directory at the same time on both units. Doing so results in the loss of
edits to the clip closed first.
• Continuous recording cannot be used with K2 InSync.