Fibre Channel Connections; Ibm Totalstorage Ds4400 Fibre Channel Storage Server - Back View - IBM TotalStorage DS4400 User Manual

v Power supplies - Two removable units that each contain a power supply and an
v Fan and communications module - A removable unit that contains the power
Figure 4. IBM TotalStorage DS4400 Fibre Channel Storage Server - back view

Fibre Channel connections

When fully configured, the back of the DS4400 Storage Server can accommodate
up to four host-side and four drive-side mini-hubs. Each mini-hub is a single,
removable unit that provides the Fibre Channel interface between a DS4400
Storage Server, host computers, and drives. Each mini-hub has two SFP module
ports. An SFP module is inserted into a mini-hub port. Figure 5 shows the Fibre
Channel components.
SFP module
4
IBM TotalStorage DS4400 Fibre Channel Storage Server: User's Guide
fiber-optic host and drive interface cables to the DS4000 Storage Server. (The
standard DS4400 configuration includes two host and two drive mini-hubs.)
indicator light.
supply cooling fans, an indicator light, and Ethernet ports.
Fan and communications
module
Host mini hubs
2 Gb/s 2 Gb/s 2 Gb/s 2 Gb/s
1 Gb/s 1 Gb/s 1 Gb/s 1 Gb/s
! ! ! !
OUT OUT OUT OUT
IN IN IN IN
Power supply
Mini hub
Host mini-hub
ports
2 G
b /s
1 G
b /s
!
2 G
b /s
1 G
b /s
O U
T !
2 G
b /s
1 G
O U b /s
T !
O U
T
IN
IN
IN
Fiber-optic
interface cable
Drive mini hubs
2 Gb/s 2 Gb/s 2 Gb/s 2 Gb/s
1 Gb/s 1 Gb/s 1 Gb/s 1 Gb/s
! ! ! !
OUT OUT OUT OUT
IN IN IN IN
Power supply
2 G
b /s
1 G
b /s
!
O U
T
IN
2 G
b /s
1 G
b /s
!
2 G
b /s
1 G
b /s
O U
!
T
2 G
b /s
1 G
O U b /s
!
T
O U
T
IN
IN
IN
SFP module
2 G
b /s
1 G
b /s
!
O U
T
IN
Drive mini-hub
ports