IBM Midrange System DS4000 Series User Manual

76 IBM Midrange System Storage Hardware Guide
Figure 3-52 DS5020 rear view: 8 FC Port model
Another configuration of the DS5020 has additional four 8 Gbps FC host ports (Figure 3-52)
or additional four 1 Gbps iSCSI host ports instead (Figure 3-53).
Figure 3-53 DS5020 rear view: 4 FC and 4 iSCSI port model
The DS5020 rear view shows four hot swappable parts:
򐂰 The two controllers with the Backup Battery Unit (BBU)
򐂰 The two Power Supply and Fan Units
The two controllers hold host and drive interfaces as well as the batteries. The left controller is
controller A and the right controller is controller B. Note that controller A is upside-down
relative to controller B. The same configuration applies to the power supply and fan unit. It is
important to keep this information in mind when connecting the back-end ports to hosts and
drive-side expansion enclosures. Refer to 3.5.7, “DS5020 storage subsystem drive-side
connections” on page 85 for more details.
Controller A
Serial
port
Ethernet
ports
Dual-ported
drive channel
Fibre Channel
host channels
Enclosure ID
Controller B
Serial
port
Ethernet
ports
Dual-ported
drive channel
Fibre Channel
host channels
Enclosure ID
Optional FC
HIC installed
Controller A
Serial
port
Ethernet
ports
Dual-ported
drive channel
Fibre Channel
host channels
Enclosure ID
Controller B
iSCSI
host
channels
Serial
port
Ethernet
ports
Dual-ported
drive channel
Fibre Channel
host channels
Enclosure ID
iSCSI
host
channels
Power-fan
canister
Controller
canister
Optional FC
HIC installed

IBM Midrange System DS4000 Series Specifications

General

Brand	IBM
Model	Midrange System DS4000 Series
Category	Storage
Language	English