GRASS VALLEY K2 - Redundant K2 SAN Description

FTP/streaming traffic accesses the K2 SAN via the FTP GigE port on K2 Media Servers.
FTP/streaming traffic does not go to K2 clients.
Related Topics
Description of K2 SAN Devices on page 257
Working with Ethernet switches on page 333
Redundant K2 SAN description
RAID Primary
Chassis
RAID Expansion
Chassis (optional)
K2 Media
Servers
NH Servers
(optional)
A
B
BA
Ethernet
Switches
Fibre Channel
Control B
Media B
Control A
Media A
Control A
Media A
Control B
Media B
Control
FTP
Media
FTP
Control
Media
Control point PC
K2 clients
Control
ISLs
Control Control
FTP/streaming
Control B
Media B
Control A
Media A
Fibre Channel
Control
FTP
Control
FTP
The redundant K2 SAN can be an online SAN or a production SAN. The SAN has two Ethernet
switches connected by Inter-Switch Links (ISLs) to support a redundant Ethernet fabric. The SAN
also has redundant K2 Media Servers. The servers are configured to have identical roles. This
provides redundancy for database, file system, iSCSI bridge, and FTP roles. One K2 RAID supports
redundant Fibre Channel connections. Up to eleven Expansion chassis are optional for increased
storage capacity.
K2 clients have a pair of redundant (teamed) Gigabit Ethernet ports for control and two Gigabit
Ethernet ports (A and B) for media (iSCSI). Each port of the control team is connected to a different
switch. The A media port goes to the A switch and the B media port goes to the B switch. The
switches are configured with V-LANs to keep the control/FTP and media (iSCSI) traffic separate.
Each K2 Media Server has one 10 Gig connection for media (iSCSI), one GigE connection for
control, one GigE connection for FTP, and one Fibre Channel connection to the RAID storage. All
GigE connections and the 10 Gig connection on a server go to the same GigE switch. The server
hosts a 10 Gig iSCSI interface card for the 10 Gig media connections and a Fibre Channel card for
the RAID storage connection. The iSCSI interface card provides a bridge between iSCSI and Fibre
Channel SCSI. The server also hosts software components that allow it to function in its roles,
34 K2 SAN Installation and Service Manual 02 February 2012
Product description