IBM System Storage N3700 Manuale utente

IBM System Storage Nseries

N3700 Hardware and Service Guide

GA32-0515-03

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IBM System Storage Nseries

N3700 Hardware and Service Guide

GA32-0515-03

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Note:

Before using this information and the product it supports, be sure to read the general information in “Notices” on page 65.

Fourth Edition (September 2006)

US Government Users Restricted Rights –Use, duplication or disclosure restricted by GSA ADP Schedule Contract

with IBM Corp.

Safety and environmental notices

This section contains information about:

v“Safety notices and labels”

v“Laser safety” on page vi

v“Rack safety” on page vii

v“Product recycling and disposal” on page viii

v“Battery return program” on page ix

v“Cable warning” on page x

Safety notices and labels

When using this product, observe the danger, caution, and attention notices

contained in this guide. The notices are accompanied by symbols that represent the

severity of the safety condition.

The following sections define each type of safety notice and provide examples.

The following notices and statements are used in IBM

documents. They are listed

below in order of increasing severity of potential hazards. Follow the links for more

detailed descriptions and examples of the danger, caution, and attention notices in

the sections that follow.

vNote: These notices provide important tips, guidance, or advice.

v“Attention notices” on page v: These notices indicate potential damage to

programs, devices, or data.

v“Caution notices” on page v: These statements indicate situations that can be

potentially hazardous to you.

v“Danger notices”: These statements indicate situations that can be potentially

lethal or extremely hazardous to you. Safety labels are also attached directly to

products to warn of these situations.

vIn addition to these notices, “Labels” on page iv may be attached to the product

to warn of potential hazards.

Danger notices

Adanger notice calls attention to asituation that is potentially lethal or extremely

hazardous to people. Alightning bolt symbol accompanies adanger notice to

represent adangerous electrical condition. Asample danger notice follows.

DANGER

An electrical outlet that is not correctly wired could place

hazardous voltage on metal parts of the system or the devices

that attach to the system. It is the responsibility of the customer

to ensure that the outlet is correctly wired and grounded to

prevent an electrical shock.

Acomprehensive danger notice provides instructions on how to avoid shock

hazards when servicing equipment. Unless instructed otherwise, follow the

procedures in the following danger notice.

©Copyright IBM Corp. 2005, 2006 iii

DANGER

Electrical voltage and current from power, telephone, and

communication cables are hazardous.

To avoid ashock hazard:

vDo not connect or disconnect any cables or perform

installation, maintenance, or reconfiguration of this product

during an electrical storm.

vConnect all power cords to aproperly wired and grounded

electrical outlet. Ensure outlet supplies proper voltage and

phase rotation according to the system rating plate.

vConnect any equipment that will be attached to this product to

properly wired outlets.

vWhen possible, use one hand only to connect or disconnect

signal cables.

vNever turn on any equipment when there is evidence of fire,

water, or structural damage.

vDisconnect the attached power cords, telecommunications

systems, networks, and modems before you open the device

covers, unless instructed otherwise in the installation and

configuration procedures.

vConnect and disconnect cables as described below when

installing, moving, or opening covers on this product or

attached devices.

To Disconnect:

1. Turn everything OFF (unless instructed otherwise).

2. Remove power cords from the outlet.

3. Remove signal cables from connectors.

4. Remove all cables from devices.

To Connect:

1. Turn everything OFF (unless instructed otherwise).

2. Attach all cables to devices.

3. Attach signal cables to connectors.

4. Attach power cords to outlet.

5. Turn device ON.

Labels

As an added precaution, safety labels are often installed directly on products or

product components to warn of potential hazards.

The actual product safety labels may differ from these sample safety labels:

DANGER

Hazardous voltage, current, or energy levels are present

inside any component that has this label attached.

Do not service, there are no serviceable parts.

iv IBM System Storage Nseries: N3700 Hardware and Service Guide

DANGER

Multiple power cords

To remove all power to the device, disconnect all power cords.

Caution notices

Acaution notice calls attention to asituation that is potentially hazardous to people

because of some existing condition. Acaution notice can be accompanied by

different symbols, as in the examples below:

If the symbol is... It means...

Ahazardous electrical condition with less severity than

electrical danger.

Agenerally hazardous condition not represented by other

safety symbols.

Ahazardous condition due to the use of alaser in the

product. Laser symbols are always accompanied by the

classification of the laser as defined by the U. S.

Department of Health and Human Services (for example,

Class I, Class II, and so forth).

Sample caution notices:

CAUTION:

This product is equipped with a3–wire (two conductors and

ground) power cable and plug. Use this power cable with aproperly

grounded electrical outlet to avoid electrical shock.

CAUTION:

Data processing environments can contain equipment transmitting

on system links with laser modules that operate at greater than

Class 1power levels. For this reason, never look into the end of an

optical fiber cable or open receptacle.

Attention notices

An attention notice indicates the possibility of damage to aprogram, device, or

system, or to data. An exclamation point symbol may accompany an attention

notice, but is not required. Asample attention notice follows:

Attention: Do not bend afibre-optic cable to aradius less than 5cm (2

in.); you can damage the cable. Tie wraps are not recommended for

optical cables because they can be easily overtightened, causing

damage to the cable.

Safety and environmental notices v

Laser safety

This equipment contains Class 1laser products, and complies with FDA radiation

Performance Standards, 21 CFR Subchapter Jand the international laser safety

standard IEC 825-2.

CAUTION:

This product contains aClass 1M laser. Do not view directly with optical

instruments. (C0280)

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.

Attention: In the United States, use only SFP or GBIC optical transceivers that

comply with the FDA radiation performance standards, 21 CFR Subchapter J.

Internationally, use only SFP or GBIC optical transceivers that comply with IEC

standard 825–1. Optical products that do not comply with these standards may

product light that is hazardous to the eyes.

Usage restrictions

The optical ports of the modules must be terminated with an optical connector or

with adust plug.

vi IBM System Storage Nseries: N3700 Hardware and Service Guide

Rack safety

Rack installation

DANGER

Always lower the leveling pads on the rack cabinet.

vAlways install stabilizer brackets on the rack cabinet.

vTo avoid hazardous conditions due to uneven mechanical

loading, always install the heaviest devices in the bottom of

the rack cabinet. Always install servers and optional devices

starting from the bottom of the rack cabinets.

vRack-mounted devices are not to be used as ashelf or work

space. Do not place any object on top of rack-mounted

devices.

vEach rack cabinet might have more than one power cord. Be

sure to disconnect all power cords in the rack cabinet before

servicing any device in the rack cabinet.

vConnect all devices installed in arack cabinet to power

devices installed in the same rack cabinet. Do not plug a

power cord from adevice installed in one rack cabinet into a

power device installed in adifferent rack cabinet.

CAUTION:

vDo not install aunit in arack where the internal rack ambient

temperatures will exceed the manufacturer’s recommended

ambient temperature for all your rack-mounted devices.

vDo not install aunit in arack where the air flow is compromised.

Ensure that air flow is not blocked or reduced on any side, front,

or back of aunit used for air flow through the unit.

vConsideration should be given to the connection of the

equipment to the supply circuit so that overloading of the

circuits does not compromise the supply wiring or overcurrent

protection.

vTo provide the correct power connection to arack, refer to the

rating labels located on the equipment in the rack to determine

the total power requirement of the supply circuit.

vThis drawer is afixed drawer and should not be moved for

servicing unless specified by manufacturer. Attempting to move

the drawer partially or completely out of the rack may cause the

rack to become unstable or cause the drawer to fall out of the

rack.

Safety and environmental notices vii

Rack relocation (19″rack)

CAUTION:

Removing components from the upper positions in the rack cabinet improves

rack stability during relocation. Follow these general guidelines whenever you

relocate apopulated rack cabinet within aroom or building:

vReduce the weight of the rack cabinet by removing equipment starting at

the top of the rack cabinet. When possible, restore the rack cabinet to the

configuration of the rack cabinet as you received it. If this configuration is

not known, you must do the following:

–Remove all devices in the 32U position and above.

–Ensure that the heaviest devices are installed in the bottom of the rack

cabinet.

–Ensure that there are no empty U-levels between devices installed in the

rack cabinet below the 32U level.

–If the rack cabinet you are relocating is part of asuite of rack cabinets,

detach the rack cabinet from the suite.

–Inspect the route that you plan to take when moving the rack to

eliminate potential hazards.

–Verify that the route that you choose can support the weight of the

loaded rack cabinet. Refer to the documentation that came with your

rack cabinet for the weight of aloaded rack cabinet.

–Verify that all door openings are at least 760 x2030 mm (30 x80 in.).

–Ensure that all devices, shelves, drawers, doors, and cables are secure.

–Ensure that the four leveling pads are raised to their highest position.

–Ensure that there is no stabilizer bracket installed on the rack cabinet

during movement.

–Do not use aramp inclined at more than ten degrees.

–Once the rack cabinet is in the new location, do the following:

-Lower the four leveling pads.

-Install stabilizer brackets on the rack cabinet.

-If you removed any devices from the rack cabinet, repopulate the rack

cabinet from the lowest position to the highest position.

–If along distance relocation is required, restore the rack cabinet to the

configuration of the rack cabinet as you received it. Pack the rack

cabinet in the original packaging material, or equivalent. Also, lower the

leveling pads to raise the casters off of the pallet and bolt the rack

cabinet to the pallet.

Product recycling and disposal

This unit must be recycled or discarded according to applicable local and national

regulations. IBM encourages owners of information technology (IT) equipment to

responsibly recycle their equipment when it is no longer needed. IBM offers a

variety of product return programs and services in several countries to assist

equipment owners in recycling their IT products. Information on IBM product

recycling offerings can be found on IBM’s Internet site at:

www.ibm.com/ibm/environment/products/prp.shtml

viii IBM System Storage Nseries: N3700 Hardware and Service Guide

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