Grass Valley K2 Storage System Instruction Manual v.3.3 - Manual (Page 186)

186 K2 Storage System Instruction Manual June 25, 2009
Chapter 5 Installing the Level 20R Storage System
Level 20R description
The K2 Level 20 Redundant (L20R) storage system was initially released with K2
system software version 3.2 in September 2007.
The Level 20R storage system has two Gigabit Ethernet switches connected by
Inter-Switch Links (ISLs) to support a redundant Ethernet fabric. The storage system
also has redundant GS K2 Media Servers. The servers are configured to have identical
roles. This provides redundancy for database, file system, iSCSI bridge, and FTP
roles. One L20 RAID supports redundant Fibre Channel connections. Up to seven
Expansion chassis are optional for increased storage capacity.
K2 Media 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 GigE switch
and the B media port goes to the B GigE switch. The GigE switches are configured
with V-LANs to keep the control/FTP and media (iSCSI) traffic separate.
Each GS K2 Media Server has two GigE connections 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 on a server go to the same
GigE switch. The server hosts a dual-port iSCSI interface card for the GigE media
connections and a Fibre Channel card for the RAID storage connection. The iSCSI
interface card provides a bridge between GigE iSCSI and Fibre Channel SCSI. The
server also hosts software components that allow it to function in its roles, including
RAID Primary
Chassis
RAID Expansion
Chassis (optional)
K2 Media
Servers
NH Servers
(optional)
A B
B A
Gigabit Ethernet
Switches
Fibre Channel
Control B Media B Control A Media A
Control A
Media A Control B Media B
Control
FTP
Media Media Control
FTP
Media Medi
a
Control point PC
! K2 S A S S T O R A G E
! K2 S A S S T O R A G E
! K2 S A S S T O R A G E
! K2 S A S S T O R A G E
K2 clients
K2 SUMMIT PRODUCTION CLIENT K2 SUMMIT PRODUCTION CLIENT K2 SUMMIT PRODUCTION CLIENT
K2 M E D I A S E R V E R K2 M E D I A S E R V E R
K2 M E D I A S E R V E R
Control
ISLs
Control Control
FTP/streaming
Control B Media B
Control A Medi
a
A
M E D I A S E R V E R
Fibre Channel
Control
FTP
C
on
tro
l
F
TP