Grass Valley K2 Storage System Instruction Manual v.3.2 Sep.24 2007 - Manual (Page 332)

332 K2 Storage System Instruction Manual September 7, 2007
Chapter 8 Installing the Level 10R Storage System
Level 10R system description
The Level 10 redundant (L10R) 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 Level 10 K2 Media Servers. The servers are
configured to have identical roles. This provides redundancy for database, file system,
iSCSI bridge, and FTP roles. One L10R RAID supports redundant Fibre Channel
connections. Up to four 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 Level 10 K2 Media Server has one GigE 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 on a server go to the same
GigE switch. The server hosts an iSCSI interface card for the GigE media connection
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 media file system
manager, media database server, and FTP server. Redundant K2 Media Servers are
connected by a serial cable which supports the heartbeat signal required for automatic
system recovery (failover) features. Each Level 10 K2 Media Server has one power
supply (non-redundant).
RAID Primary
Chassis
RAID Expansion
Chassis (optional)
K2 Media
Servers
A B
B A
K2 Media Clients
Gigabit Ethernet
Switches
Control B Media B
Control A
Media A
Control A Media A Control B Media B
Control
FTP
Media Control
FTP
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 S D I M E D I A C L I E N T !
K2 S D I M E D I A C L I E N T !
K2 S D I M E D I A C L I E N T
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
Fi b re
Ch a nnel
Fi b re
Ch a nnel