IBM System Storage DS4000, Руководство по техническому обслуживанию аппаратной части, Страница: 67 / 184

RAID controller
Each RAID controller contains several connectors and LEDs. Each
controller has one host port and one expansion port for connecting the
storage server to hosts or expansion units. You first insert a GBIC into the
port and then connect the fibre channel cables.
Host port
The host port is used to connect fibre channel cables from the host
systems. You first insert a GBIC into the port and then connect the fibre
channel cables.
Ethernet port
The Ethernet port is for an RJ-45 10 BASE-T or 100 BASE-T Ethernet
connection. Use the Ethernet connection to directly manage storage
subsystems.
Expansion port
The expansion port is used to connect additional expansion units to the
RAID controllers. You can connect one expansion unit to each RAID
controller. You first insert a GBIC into the port and then connect the fibre
channel cables.
RS-232 port
The RS-232 port is a TJ-6 modular jack and is used for an RS-232 serial
connection. The RS-232 port is used by service personnel to perform
diagnostic operations on the RAID controllers. An RS-232 cable comes with
the storage server.
Diagnostics
To diagnose fibre channel problems, use FAStT MSJ (see the IBM TotalStorage
DS4000 Problem Determination Guide ).
To diagnose the Type 3542 storage system, use the following diagnostic tools:
v
Storage management software
v Checking LEDs
RAID controllers
Host port
Host port
Ethernet port
Ethernet port
RS-232 port RS-232 port
Expansion port
Expansion port
AC power
connector AC power
switch
AC power
switch
AC power
connector
Figure 26. FAStT200 and FAStT200 HA storage server interface ports and switches
Chapter 7. FAStT200 Type 3542 and FAStT200 HA Type 3542
39