IBM DS3500, Installation, User & Maintenance Manual

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Host port 1 and Host port 2
The iSCSI host ports are auto-negotiated 100/1000 Mbps Ethernet ports
that support iSCSI off load. The host ports also provide support for both
Internet Protocol version 4 (IPv4) and IPv6, and have the advanced
networking functions of jumbo frames, IEEE 802.1p, and virtual local area
network (VLAN) support.
Drive expansion port
The drive expansion port is a x4 multilane SAS port. Connect a SAS cable
to this port and to a drive expansion enclosure.
Controller connectors (with SAS host port adapters)
Figure 16 shows the optional SAS host port adapter installed in both controllers at
the rear of the DS3500 storage subsystem.
Host port 1, Host port 2, and Host port 3
The DS3500 host ports are each a x4 multilane, 6 Gbps universal mini-SAS
port. Connect a SAS cable from your host system SAS host bus adapter to
a host port on each controller.
Drive expansion port
The drive expansion port is a x4 multilane SAS port. Connect a SAS cable
to this port and to a drive expansion enclosure.
Serial port
Ethernet ports
SAS host port 1
SAS host port 2
iSCSI host port 3
Controller A
iSCSI host port 4
iSCSI host port 5
iSCSI host port 6
Drive expansion port
Controller B
Seven-segment
numeric display
Figure 15. Dual-controller DS3500 storage subsystem ports and controllers (with optional
iSCSI host port adapter)
Serial port
Ethernet ports
SAS host port 1
SAS host port 2
SAS host port 3
Controller A
SAS host port 4
Drive expansion port
Seven-segment
numeric display
Controller B
Figure 16. Dual-controller DS3500 storage subsystem ports and controllers (with an optional
SAS host port adapter)
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System Storage DS3500 and EXP3500: Installation, User’s, and Maintenance Guide