Chapter 2. Connecting An N3700 Storage System; Handling Fiber-Optic Cables; Connecting Your N3700 Storage System To A Network; Connecting Expansion Units - IBM System Storage N3700 Hardware And Service Manual

Chapter 2. Connecting an N3700 storage system

This chapter describes how to connect an N3700 storage system in the following
topics:
v "Handling fiber-optic cables"
v "Connecting your N3700 storage system to a network"
v "Connecting expansion units"
v "Connecting your N3700 storage system to a power source" on page 8
v "Connecting to third-party devices or Fibre Channel switches" on page 8
v "Connecting your N3700 storage system to an ASCII terminal console" on page 9

Handling fiber-optic cables

Before you use fiber-optic cables, read the following precautions.
Attention:
v Do not route the cable along a folding cable-management arm.
v When attaching to a device on slide rails, leave enough slack in the cable so that
v Route the cable away from places where it can be snagged by other devices in
v Do not overtighten the cable straps or bend the cables to a radius of less than 38
v Do not put excess weight on the cable at the connection point. Be sure that the

Connecting your N3700 storage system to a network

Each node of your N3700 storage system connects to the network. If you have an
active-active (clustered) system both nodes need to connect to the network. For
information that describes how to connect your N3700, refer to the Installation and
Setup Instructions for your storage system.

Connecting expansion units

You can connect additional expansion units to an N3700. For information that
describes how to connect your N3700 storage system up to a maximum of three
expansion units, see the Installation and Setup Instructions for your storage system.
On all N3700 storage systems, Port B is designated for use in connections to
expansion units.
Note: The N3700 only operates at 1 Gbps. Make sure that the speed setting
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To avoid damage to the fiber-optic cables, follow these guidelines:
it does not bend to a radius of less than 38 mm (1.5 in.) when extended or
become pinched when retracted.
the rack cabinet.
mm (1.5 in.).
cable is well supported.
CAUTION:
Data processing environments can contain equipment transmitting on
system links with laser modules that operate at greater than Class 1
power levels. For this reason, never look into the end of an optical fiber
cable or open receptacle.
switches on the expansion units are set to 1Gb.
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