HP XP12000 User guide

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HP StorageWorks

XP12000 Disk Array

site preparation guide

third edition (May 2005)

part number: AE002-96011

This guide contains site preparation information for the HP StorageWorks XP12000 Disk Array.

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Printed in the U.S.A.

HP StorageWorks XP12000 Disk Array Site Preparation Guide

third edition (May 2005) part number: AE002-96011

2 HP StorageWorks XP12000 Disk Array Site Preparation Guide

About this guide 7

Related information 7 Document conventions and symbols 7 Getting help 8 HP technical support 8 HP storage web site 8 HP authorized reseller 9 Revision history 10

1 Site Prep Team and Tasks 11

The site prep team 12

HP representatives 12 Customer 12

Site prep tasks 13

Site prep checklist 13 Site prep time allowances 16

2 Site Requirements 17

Disk array physical specifications 18

Dimensions 19 Weights 19 Calculating the weight of your disk array configuration 22 Weight calculation example 24

General computer room requirements 25

Preventing electrostatic discharge 25

Safety requirements 27

Fire safety 27 Equipment servicing hazards 27

Contents 3

Raised floor requirements 28

Floor covering 29 Floor cutouts 29

Space planning requirements 32

The space planning process 32 Floor clearance 33

Environmental requirements 46

Altitude 46 Air conditioning 46 Temperature 47 Humidity 47 Mechanical vibration 48 Shock 49 Heat dissipation and power consumption 49 Acoustics 50 Dust and pollution control 50

Metallic particulate contamination 50 Data comm requirements 52 Electrical requirements 53

Line voltage 53

Branch circuit breakers 53

Frequency 54

Safety and dedicated ground 54

Grounding requirements 54

Receptacles 55

Power line transients 56

Maximum peak inrush and crest factor 57

Uninterruptible power supply (UPS) 58

Sources of electrical interference 59 Delivery space requirements 60

3 Delivery and Unpacking 61

Checking for shipping shortage and damage 62 Unpacking the equipment 63

Packaging configurations 63

Required personnel 63

Required tools 63

Unpacking process 64

4 HP StorageWorks XP12000 Disk Array Site Preparation Guide

A Electrical Specifications 69

AC line voltage requirements 70

50-amp, single-phase DKC 70 30-amp, single-phase DKC 70 30-amp, three-phase DKC 71 50-amp, single-phase DKU 71 30-amp, single-phase DKU 72

30-amp, three-phase DKU 72 Receptacle part numbers and ordering information 73 Three-phase cabling for the USA (60 Hz) 74

Connecting the external power-supply cords 74

Branch circuit requirements 75 Three-phase AC cabling for Europe (50 Hz) 76

Connecting the power-supply cords 76

Branch circuit requirements 77 Single-phase AC cabling for the USA 78

Connecting the power-supply cords 78

Branch circuit requirements 80 Single-phase cabling for Europe 81

Connecting the power-supply cords 81

Branch circuit requirements 82

Glossary 83

Index 95

Contents 5

6 HP StorageWorks XP12000 Disk Array Site Preparation Guide

About this guide

This guide is intended for anyone participating in preparing a site for the installation of an HP StorageWorks XP12000 Disk Array.

Unless otherwise noted, the term disk array refers to the HP StorageWorks XP12000 Disk Array.

Related information

For related product documentation, see the HP StorageWorks XP12000 Disk Array Owner’s Guide on the HP web site:

Document conventions and symbols

Table 1. Document conventions

Convention Element

Blue text (Figure 1) Cross-reference links

Bold Menu items, button names, key names, tab names, and group box names

www.hp.com

Italics Text emphasis and document titles

Blue underlined sans serif font (www.hp.com

About this guide 7

)

Caution Failure to follow directions could result in hardware or software damage.

Web site addresses

Warning

Failure to follow directions could result in personal injury or death.

Getting help

If you have additional questions, contact your HP sales representative (HP SR) or visit the HP web site:

HP technical support

In North America, call technical support at 1-800-652-6672, available 24 hours a day, 7 days a week.

Outside North America, call technical support at the location nearest you. The HP web site lists telephone numbers for worldwide technical support:

www.hp.com/country/us/eng/support.html

Have the following information available before calling:

www.hp.com

• Technical support registration number (if applicable)

• Product serial numbers

• Product model names and numbers

• Applicable error messages

• Operating system type and revision level

• Detailed questions

For continuous quality improvement, calls may be recorded or monitored.

HP storage web site

For the most current information about HP StorageWorks XP products:

http://h18006.www1.hp.com/storage/arraysystems.html

8 HP StorageWorks XP12000 Disk Array Site Preparation Guide

HP authorized reseller

To obtain the name of your nearest HP authorized reseller:

United States 1-800-345-1518

Canada 1-800-263-5868

elsewhere See the HP web site for locations and telephone

numbers:

www.hp.com

About this guide 9

Revision history

September 2004 First edition

March 2005 Second edition

May 2005 Third edition

10 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Site Prep Team and Tasks

The objective of a site prep is to prepare your site for the successful and timely installation of the HP XP12000 disk array. Proper site preparation is vital for the reliability of the disk array.

Site prep involves a careful balance of equipment design criteria, site environmental variables, your business needs, and your budget constraints.

In addition to this guide, other site prep resources may be available to you. The HP service organization is committed to making sure you receive maximum benefit from your disk array. HP representatives will guide and assist you throughout the site prep process.

Site Prep Team and Tasks 11

The site prep team

The site prep team plans, schedules, and completes all tasks necessary to prepare your site for successful disk array installation.

The site prep team consists of HP representatives and you, the customer.

HP representatives

The HP team includes various HP representatives who have the training, knowledge, experience, tools, and parts required to install and maintain XP disk arrays. This team:

• Helps you to determine and implement the site requirements for your specific site and array configuration

• Coordinates all HP resources to ensure successful delivery and installation of the disk array

Your HP SR is your primary point of contact with HP during the site preparation process.

Customer

As part of the site prep team, your responsibilities include planning and preparing a suitable environment for the disk array, and scheduling equipment delivery and installation. However, HP representatives are available to help you throughout the site prep process. Your internal site team may include personnel specializing in your site computer room, such as your storage administrator and your site electrician.

12 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Site prep tasks

Contact your HP SR for assistance at any time during the site prep process.

1. If you have not printed a copy of this guide, HP recommends that you print at least Chapter 2 and the “Site prep checklist” (page 13). Working from printed copies makes it easier to use the tools provided and provides hard copy documents that you can keep for your records.

2. Carefully review Chapter 2 to understand the site requirements for the disk array. If you plan to connect additional external storage to the XP12000, be sure to take the requirements of that storage into account. See the documentation for the external system.

3. Use the information, instructions, and tools in Chapter 2 to determine site requirements for the specific disk array components you ordered.

4. On the site prep checklist, answer each item “Yes” or “No” as it relates to your site. The checklist includes references to the pages in this guide where you can find more information on each item.

5. Checklist items that require a “Yes” answer are marked with asterisks (*). If you answer “No” for any of these items, your site does not meet site requirements for the disk array. Using the information in Chapter 2, correct the site environment so that you can answer “Yes” for each of these items.

6. When your site meets all site requirements, contact your HP SR to coordinate delivery of the disk array equipment.

7. If you choose to unpack the equipment cartons without HP supervision, follow the instructions in Chapter 3.

8. Contact the HP SR to schedule disk array installation and configuration.

Site prep checklist

Checklist items that require a “Yes” answer are marked with asterisks (*). The customer summary information is included for the benefit of HP representatives, who will help you complete the checklist.

Site Prep Team and Tasks 13

Customer summary

Customer: Date:

Address:

Contact: Phone:

HP summary

HP SR: Phone:

HP representative: Phone:

Safety Yes No Reference

Is there a fire protection system in the computer room? *❑❑page 27

Is the computer room free of any equipment servicing hazards (for example,

*❑❑page 27

electrical or data cables that obstruct access)?

Computer room space planning Yes No Reference

Is the existing floor plan documented? ❑❑page 32 Has a new floor plan been developed to include the new array? *❑❑page 32

Does the new floor plan include adequate space for airflow and servicing

*❑❑page 32

needs?

Does the new floor plan include the clearance required for the floor’s load

*❑❑page 33

rating?

Computer room infrastructure Yes No Reference

Is the computer room structurally complete (walls, floor, air conditioning

*❑❑Chapter 2

system, and so on)?

Is the raised floor adequate for the equipment load? *❑❑page 28 Is antistatic flooring or mats installed? *❑❑page 29 Are there cutouts or channels for cable routing? *❑❑page 29 Is there a dedicated analog telephone line for “phone home” configuration? *❑❑page 52 Is a telephone line available for HP representative use? *❑❑page 52 Is a private LAN available? *❑❑page 52

14 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Computer room environment Yes No Reference

Can the temperature be maintained between 16° and 32° C? *❑❑page 47 Can temperature changes be held to less than 10° C per hour? *❑❑page 47 Can the humidity level be maintained between 20% and 80%? *❑❑page 47

Is the computer room protected against dust, pollution, and metallic

*❑❑page 50

particulate contamination?

Does the computer room support other environmental considerations (such as vibration and acoustics)?

Computer room electrical Yes No Reference

*❑❑page 48–

page 50

Are two AC outlets, on different lines, available for the equipment? *❑❑page 53

Does the input voltage correspond to the DKC and DKU equipment

*❑❑page 53

specifications?

Are the input circuit breakers adequate for equipment loads? *❑❑page 53 Does the input frequency correspond to equipment specifications? *❑❑page 54 Is an appropriate uninterruptible power supply (UPS) strategy in place? *❑❑page 58 If lightning arresters are recommended, are they installed? *❑❑page 59 Have all sources of electrical interferences been corrected? *❑❑page 59

Building access and security Yes No Reference

Does the customer site have access control (for example, HP representatives

❑❑NA

will need an escort)?

Does the computer room have access control (for example, HP

❑❑NA

representatives will need a security code)?

Are all floors, stairs, elevators, stairwalkers, lifts, ramps, or ladders needed

*❑❑page 60

to move the equipment adequate to support its weight and size?

Will the equipment fit through all doors and corridors and in lifts? *❑❑page 60 Does the building have a loading dock? Maximum access height is _____m. ❑❑NA

Additional equipment Yes No Reference

For any additional equipment required (for example, connectors,

*❑❑NA

receptacles, cables, and any equipment not supplied by HP), is the equipment on site and ready for use?

Site Prep Team and Tasks 15

Site prep time allowances

The following site prep tasks may require several weeks:

• Acquiring required power connectors

• Arranging for an electrician

• Adding or modifying air conditioning systems

• Making building alterations

• Placing an order for data comm equipment

The time between placing an equipment order and actual delivery can vary. Contact your HP representative to determine the best estimated delivery dates.

16 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Site Requirements

Your site must meet the following requirements before HP can deliver and install the disk array:

• General computer room requirements, page 25

• Safety requirements, page 27

• Raised floor requirements, page 28

• Space planning requirements, page 32

• Environmental requirements, page 46

• Data comm requirements, page 52

• Electrical requirements, page 53

• Delivery space requirements, page 60

Site Requirements 17

Disk array physical specifications

Mini

Use the information in this section to determine the total dimensions and weight for your specific array configuration. You will need these values to complete other procedures in this chapter.

The disk array includes one disk controller frame (DKC), and zero to four disk array frames (DKUs). The DKC contains the controller electronics for the disk array and some hard disk drives. The DKUs contain additional hard disk drives. Figure 1 shows a disk array with four DKUs.

mum disk subsystem

4th DKU (L2) 3rd DKU (L1) DKC 1st DKU (R1) 2nd DKU (R2)

Figure 1. Disk array minimum/maximum configuration

Supported configurations are:

• One DKC (minimum configuration)

• One DKC and one DKU (R1)

• One DKC and two DKUs (R1 and R2 or R1 and L1)

• One DKC and three DKUs (R1, R2, and L1 or R1, L1, and L2)

• One DKC and four DKUs (maximum configuration)

18 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Dimensions

Use the packaged values when determining delivery space requirements

(page 60), and unpackaged values during space planning (page 32).

Table 2. DKC and DKU dimensions

DKC Unpackaged DKC Packaged DKU Unpackaged DKU Packaged

Dimension

Width 78.2

cm in cm in cm in cm in

30.8 89 35.04 65 25.6 79 31.2

Depth 92.5 36.42 112.5 44.3 92.5 36.42 112.5 44.3

Height 186 73.23 202 79.52 186 73.23 202 79.52

1 Includes two side panels of 1.6 cm (0.63 in.) width each.

Weights

Use the approximate packaged weights when determining delivery space requirements (page 60), and unpackaged weights to calculate the total weight of your configuration (page 22).

Table 3 (page 20) provides the approximate weights for:

• Minimum configuration — base cabinet without additional product components

• Maximum configuration — base cabinet fully populated with product components

Site Requirements 19

Table 3. DKC and DKU weights

Minimum configuration Maximum configuration

Cabinet

kg lb kg lb

Unpackaged 590 1300 875 1930

DKC

Packaged

1, 2

689 1518 989 2180

Unpackaged 429 945 739 1630

DKU

Packaged

1 For shipments from the USA to locations outside the USA and Canada, add 59 kg (130 lb)

for an international shipping crate.

2 Within the USA and Canada, most shipments use a special carrier process in which frames

are shipped without pallets, ramps, and cartons. In these cases, the packaged weight is the unpackaged weight plus 23 kg (50 lb).

3 For upgrade DKU packaging (includes a ramp), add 29 kg (65 lb).

1, 3

499 1100 853 1880

The main factor that increases total weight is the number of disk drives. The actual weight is the base cabinet weight plus the weight of all additional components installed.

Table 4 provides the approximate weights of additional disk array

components when integrated into a DKC or DKU cabinet.

Table 4. Component weights

Product Description kg lb

AE002A #001 Three-phase 30A/60Hz for XP12000 DKC 22.6 50

AE002A #002 Three-phase 30A/50Hz for XP12000 DKC 20 44

AE002A #003 Single-phase 50A/60Hz for XP12000 DKC 21.3 47

AE002A #004 Single-phase 50A/50Hz for XP12000 DKC 17.2 38

AE002A #005 Single-phase 30A/60Hz for standard XP12000 DKC 20 44

AE002A #006 Single-phase 30A/50Hz for standard XP12000 DKC 18.6 41

AE002A #007 Single-phase 30A/60Hz for minimum XP12000 DKC 15.9 35

AE002A #008 Single-phase 30A/50Hz for minimum XP12000 DKC 15 33

AE003A XP12000 SVP High Reliability Support Kit 8.6 19

20 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Table 4. Component weights (continued)

Product Description kg lb

AE004A XP12000 Power Control Interface Kit for Mainframe 0.5 1

AE006A XP12000 16-port 1–2 Gbps FC SW CHIP pair 5 11

AE007A XP12000 32-port 1–2 Gbps FC SW CHIP pair 5.9 13

AE008A XP12000 FC SFP Transceiver LW 0.03 0.05

AE013A XP12000 8-port 1–2 Gbps FICON SW CHIP pair 5.9 13

AE014A XP12000 8-port 1–2 Gbps FICON LW CHIP pair 5.9 13

AE017A XP12000 16-port EXSA CHIP pair 5.4 12

AE018A HP XP12000 8-Port 1 Gbps NAS SW CHIP 6.5 14

AE024A XP12000 DKC Power Supply 23.1 51

AE025A XP12000 4 GB Cache Memory Module 0.2 0.5

AE027A XP12000 Cache Platform Board 6.4 14

AE028A XP12000 DKC-DKU Battery 13.7 30

AE030A XP12000 1 GB Shared Memory Module 0.05 0.1

AE032A XP12000 Shared Memory Platform Board 2.3 5

AE033A XP12000 Cache Switch 3.6 8

AE034A XP12000 Standard Performance ACP pair 5 11

AE040A XP12000 Cable Set for DKU R1, basic 3.2 7

AE041A XP12000 Cable Set for DKU R1, high performance 4.1 9

AE042A XP12000 Cable Set for DKU L1, basic 4.1 9

AE043A XP12000 Cable Set for DKU L1, high performance 4.5 10

AE044A XP12000 Cable Set for DKU R2 or L2 2.3 5

AE045A #001 Three-phase 30A/60Hz for XP12000 DKU 22.6 50

AE045A #002 Three-phase 30A/50Hz for XP12000 DKU 20 44

AE045A #003 Single-phase 50A/60Hz for XP12000 DKU 21.3 47

AE045A #004 Single-phase 50A/50Hz for XP12000 DKU 17.2 38

Site Requirements 21

Table 4. Component weights (continued)

Product Description kg lb

AE045A #005 Single-phase 30A/60Hz for XP12000 DKU 20 44

AE045A #006 Single-phase 30A/50Hz for XP12000 DKU 18.6 41

AE046A XP12000 High Performance FC-AL Disk Path 6.8 15

AE050A XP12000 73 GB 15K rpm Array Group, four disks 4.5 10

AE050AS XP12000 73 GB 15K rpm Spare Disk 1.4 3

AE051A XP12000 146 GB 10K rpm Array Group, four disks 4.1 9

AE051AS XP12000 146 GB 10K rpm Spare Disk 0.9 2

AE053A XP12000 300 GB 10K rpm Array Group 4 9

AE053AS XP12000 300 GB 10K rpm Spare Disk 1 2

Calculating the weight of your disk array configuration

The total weight of your array configuration includes not just the DKC and DKU(s), but also the number of disk drives in each cabinet and any optional components. Your site must have adequate floor strength to support the total weight of the array, from the delivery area to the computer room.

Use the weight calculation worksheet (page 23) to calculate the total weight of your unpackaged array configuration, in your preferred units (kg or lb). See Table 6 (page 24) for an example of a completed worksheet.

Use the calculated total weight to estimate the required floor load rating for the computer room (page 28).

22 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Table 5. Weight calculation worksheet

Units (kg or lb)

Part Number Description Weight1Quantity

Extended

weight

Total weight of your configuration

1From Table3 (page 20) or Table 4 (page 20).

Site Requirements 23

Weight calculation example

Table 6. Weight calculation worksheet example

Units (kg or lb)

Part Number Description Weight

Pounds (lb)

Quantity

Extended

weight

AE002A XP12000 Disk Control Frame (DKC) 1300 x 1 = 1300

AE002A #001 Three-phase 30A/60Hz for XP12000 DKC 50 x 1 = 50

AE007A XP12000 32-port 1–2 Gbps FC SW CHIP pair 13 x 2 = 26

AE013A XP12000 8-port 1–2 Gbps FICON SW CHIP pair 13 x 1 = 13

AE024A XP12000 DKC Power Supply 51 x 1 = 51

AE025A XP12000 4 GB Cache Memory Module 0.5 x 8 = 4

AE028A XP12000 DKC-DKU Battery 30 x 4 = 120

AE030A XP12000 1 GB Shared Memory Module 0.1 x 3 = 0.3

AE033A XP12000 Cache Switch 8 x 1 = 8

AE034A XP12000 Standard Performance ACP pair 11 x 2 = 22

AE040A XP12000 Cable Set for DKU R1, basic 7 x 1 = 7

AE041A XP12000 Cable Set for DKU R1, high performance 9 x 1 = 9

AE045A XP12000 Disk Array Frame (DKU) 945 x 1 = 945

AE045A #001 Three-phase 30A/60Hz for XP12000 DKU 50 x 1 = 50

AE046A XP12000 High Performance FC-AL Disk Path 15 x 1 = 15

AE051A XP12000 146 GB 10K rpm Array Group, four disks 9 x 70 = 630

AE051AS XP12000 146 GB 10K rpm Spare Disk 2 x 4 = 8

Total unpackaged weight of your configuration

1From Table3 (page 20) or Table 4 (page 20).

24 HP StorageWorks XP12000 Disk Array Site Preparation Guide

3258.3

General computer room requirements

The goal of a computer room is to maintain an ideal environment for computer equipment, including XP disk arrays.

Make sure your computer room adheres to all national and local building codes for a data center/computer room environment.

HP recommends that you follow these general guidelines:

• Locate the computer room away from exterior walls of the building to avoid the heat gain from windows and exterior wall surfaces.

• When exterior windows are unavoidable, use windows that are double or tripled glazed and shaded to prevent direct sunlight from entering the computer room.

• Maintain the computer room at a positive pressure relative to the surrounding spaces to reduce introduction of contaminants.

• Install a vapor barrier around the entire computer room envelope (floors/walls/ceiling) to help keep moisture out of the room. This is especially important if your computer room is located underground.

• Caulk and vapor-seal all pipes and cables that penetrate the computer room envelope.

Preventing electrostatic discharge

Electrostatic discharge (ESD) can cause component damage during servicing operations.

Static charges occur when objects are separated or rubbed together. The voltage level of a static charge is determined by the following factors:

• Types of materials

• Relative humidity — low humidity contributes to undesirably high levels of electrostatic charges, which increases the ESD voltage potential.

Site Requirements 25

• Rate of change — a standard air conditioner both cools and removes moisture from the air. The rate of change is how quickly the air in the room is dried. The drier the air, the more static is generated. If you do not use proper cooling equipment, air dryness can present problems.

• Separation — refers to the static discharge that can be generated when two objects are separated. For example, printer paper is often stored in cool dry conditions. If opened and used immediately, the act of removing the paper from its box generates static. To allow the static to discharge gradually over time, leave the box open in the computer room for several hours before use.

Follow these precautions to minimize possible ESD-induced failures in your computer room:

• Install conductive flooring (conductive adhesive must be used when laying tiles).

• Use conductive wax if waxed floors are installed.

• Ensure that all equipment and flooring are properly grounded and are at the same ground potential.

• Use conductive tables and chairs.

• Store spare electric parts in antistatic containers.

• Maintain recommended humidity level and airflow rates.

26 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Safety requirements

When making decisions concerning site safety, your first concern should be the safety of your personnel and then the safety of your equipment.

Fundamental safeguards for disk arrays should include a site well away from any sources of potential damage.

If you have any questions on site safety, consult your HP representative, your insurance carrier, and local building inspectors for safety recommendations.

Fire safety

Do not install or operate the disk array in an environment where there is a risk of fire or explosion due to the presence of highly flammable gases, volatile liquids, or combustible dust.

Consult your insurance carrier and local fire department for fire safety suggestions. They can analyze your existing fire control systems and advise you on any required changes. If you are building a new site or making structural changes to an existing site, consult your local building codes for fire prevention and protection guidelines.

Equipment servicing hazards

Your staff and HP service personnel require safe access to the disk array. Running electrical and data communication cables underneath your computer room’s raised floor is the best way to ensure that they do not create a safety hazard.

Site Requirements 27

Raised floor requirements

The computer room floor must be able to support the total weight of the equipment as well as localized weight at each caster or foot of the equipment cabinets. A common method of preparing an adequate floor for a computer room is to construct a raised floor over the building floor. A raised floor:

• Allows weight to be spread evenly across the floor

• Provides an under-floor area for running interconnecting cables conveniently and unobtrusively

• Allows optimum distribution of conditioned air

Warning

If metal is used in the construction of the raised floor, ensure that there is a common ground connection between the raised floor and main floor to avoid possible build up of different voltage potentials. Failure to comply can result in serious injury to personnel and damage to equipment.

Requirements for raised floors:

• Raised floor access ramps must not exceed a 10

• Use a 10- to 12-inch raised floor system for the most favorable room air distribution system.

• Grid panels must be at least 45 x 45 cm (17.72 x 17.72 in).

• The floor must have a load rating between 300 and 500 kg per square meter (553 to 921.7 lb per square yard, or 61.4 to 102.4 lb per square foot). The maximum point floor loading is 500 kg (1102.3 lb).

To estimate the load rating you need for your floor, consider the total weight of all of these items:

• The disk array; see “Weights” (page 19)

• Other equipment

28 HP StorageWorks XP12000 Disk Array Site Preparation Guide

° slope.

Floor covering

Caution HP strongly discourages the use of carpeting, including antistatic varieties,

Caution If your computer room has carpeting, place static discharge mats where

• Furniture such as desks, chairs, and storage cabinets

• Computer room personnel

• Moving equipment such as forklifts, dollies, and similar items

The lower the floor load rating, the more clearance is required around the array to distribute the equipment weight correctly. If your computer room is too small to allow for minimum required clearance around the array, you may need to increase the floor load rating. For more on required clearance, see “Floor clearance” (page 33).

HP recommends the use of a tiled raised floor.

within 6.0 m (20 ft.) of the disk array. Over time, carpeting may shed dust that can cause problems with the disk array.

personnel must walk across them before touching any part of the array. Failure to comply with this precaution can result in equipment damage through static discharge.

Floor cutouts

Figure 2 (page 30) and Figure 3 (page 31) show the locations of floor cutouts under the DKC and DKU. Basically, position floor cutouts toward the center of the cabinet. The position may be off-center as long as the cutout is within the allowable range and allows smooth entrance of an external cable (check the relationship between the position of the cutout and the opening on the bottom of the cabinet).

Site Requirements 29

DKC floor cutouts

Figure 2. DKC floor cutouts

30 HP StorageWorks XP12000 Disk Array Site Preparation Guide

DKU floor cutout

Figure 3. DKU floor cutout

Site Requirements 31

Space planning requirements

Space planning involves making sure that your computer room:

• Is large enough to hold the new array and other equipment and furniture

• Provides minimum clearance around the array for service access and to ensure proper weight distribution on the computer room’s floor

• Includes correctly positioned floor cutouts for the array’s power and data cables

The space planning process

1. Document your computer room’s existing floorplan, including the locations of:

• Immovable objects, such as structural support columns

• Walls

• All equipment, furniture, cabinets, racks, data comm equipment, and systems

• Floor cutouts

• Electrical outlets

• Interconnecting cables and power cords, including lengths

• Floor vents

2. Develop a new floorplan that includes the locations of:

• Immovable objects from your existing floorplan

• Walls

• The array with required clearance; see “Floor clearance” (page 33)

• All other equipment, furniture, cabinets, racks, data comm equipment, and systems

• Floor cutouts; see “Floor cutouts” (page 29)

• Electrical outlets

32 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Floor clearance

• Interconnecting cables and power cords (keep cables away from traffic areas to help prevent accidents and equipment failures)

• Floor vents

• Enough space and lighting for people to work effectively on a daily basis and for periodic equipment servicing

• Flexibility to accommodate additional equipment as your requirements increase

3. Implement the new floor plan, leaving empty space where the array will be installed. If the new floorplan requires construction changes, consult with local contractors and your HP representatives.

The total floor clearance required for the disk array includes:

• The actual space required by the equipment.

• Service clearance — the floor space required to access the disk array. Never use this space for storage.

• Additional space required to properly distribute the equipment weight on your computer room’s raised floor. The amount of additional space required depends on your floor load rating.

To determine the floor clearance required for your disk array configuration:

1. Refer to the appropriate diagram for your array configuration:

• DKC only—Figure 4 (page 36)

• DKC with one DKU—Figure 5 (page 38)

• DKC with two DKUs—Figure 6 (page 40)

• DKC with three DKUs—Figure 7 (page 42)

• DKC with four DKUs—Figure 8 (page 44)

Site Requirements 33

2. In the floor clearance diagram:

• Clearance “A” is the space between the service clearance at the left side of the array (10 cm for the kickplate) and any other object, such as a desk or wall.

• Clearance “B” is the space between the service clearance at the right side of the array (10 cm for the kickplate) and any other object.

• Clearance “C” is the space between the service clearance at the front of the array and any other object.

You use the value of C and your floor load rating to determine the values for A and B.

3. Determine how much space you can assign to clearance C. For maintenance purposes, try to make C larger (100 cm) rather than smaller (0 cm). The smaller C is, the larger A and B must be.

4. In the table after the diagram, find the column for C. If your C value is in between two table values, use the larger table value. Then, find the row for your floor load rating. Where the column and row intersect is the A+B value.

5. To determine clearance A and clearance B, divide the A+B value between A and B. They do not need to be equal. For example, if the A+B value from the table is 60 cm, then A can be 40 cm and B can be 20, or both A and B can be 30. However, if your configuration includes only a DKC, or a DKC and one DKU, then A must be at least 28 cm (11.1 in) to allow for opening the DKC front door.

34 HP StorageWorks XP12000 Disk Array Site Preparation Guide

6. Calculate the floor clearance for the array:

Table 7. Calculating floor clearance

Left Right Front Back

Clearance values

Minimum service clearance

Minimum floor clearance

A = _________+B = _________+C = _________+Not applicable

10 cm (3.94 in)=10 cm (3.94 in)=80 cm (31.5 in)=80 cm (31.5 in)

80 cm (31.5 in)

Site Requirements 35

Floor clearance — DKC only

Figure 4. Floor clearance — DKC only

For an explanation of this diagram, see step 2 (page 34).

36 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Table 8. A+B based on C and floor load rating — DKC only

Floor load rating (kg/m2)

C=0, A+B must =

C=20 cm (7.9 in), A+B must =

C=40 cm (15.8 in), A+B must =

C=60 cm (23.6 in), A+B must =

C=100 cm (39.4 in), A+B must =

500 40 30 20 0 0

450 50 40 30 20 0

400 80 60 50 40 20

350 110 90 80 60 40

300 170 140 120 100 80

Site Requirements 37

Floor clearance — DKC and one DKU

Figure 5. Floor clearance — DKC and one DKU

For an explanation of this diagram, see step 2 (page 34).

38 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Table 9. A+B based on C and floor load rating — DKC and one DKU

Floor load rating (kg/m2)

C=0, A+B must =

C=20 cm (7.9 in), A+B must =

C=40 cm (15.8 in), A+B must =

C=60 cm (23.6 in), A+B must =

C=100 cm (39.4 in), A+B must =

500 80 60 40 20 0

450 110 90 70 50 20

400 160 130 100 80 50

350 230 190 160 130 90

300 330 280 240 210 160

Site Requirements 39

Floor clearance — DKC and two DKUs

Figure 6. Floor clearance — DKC and two DKUs

For an explanation of this diagram, see step 2 (page 34).

40 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Table 10. A+B based on C and floor load rating — DKC and two DKU

Floor load rating (kg/m2)

C=0, A+B must =

C=20 cm (7.9 in), A+B must =

C=40 cm (15.8 in), A+B must =

C=60 cm (23.6 in), A+B must =

C=100 cm (39.4 in), A+B must =

500 120 90 60 40 0

450 170 130 100 70 30

400 240 200 160 130 80

350 340 280 240 200 140

300 500 430 370 320 240

Site Requirements 41

Floor clearance — DKC and three DKUs

Figure 7. Floor clearance — DKC and three DKUs

For an explanation of this diagram, see step 2 (page 34).

42 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Table 11. A+B based on C and floor load rating — DKC and three DKUs

Floor load rating (kg/m2)

C=0, A+B must =

C=20 cm (7.9 in), A+B must =

C=40 cm (15.8 in), A+B must =

C=60 cm (23.6 in), A+B must =

C=100 cm (39.4 in), A+B must =

500 160 120 80 50 0

450 230 180 140 100 50

400 320 260 210 170 100

350 460 380 320 270 190

300 660 570 490 420 320

Site Requirements 43

Floor clearance — DKC and four DKUs

Figure 8. Floor clearance — DKC and four DKUs

For an explanation of this diagram, see step 2 (page 34).

44 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Table 12. A+B based on C and floor load rating — DKC and four DKUs

Floor load rating (kg/m2)

C=0, A+B must =

C=20 cm (7.9 in), A+B must =

C=40 cm (15.8 in), A+B must =

C=60 cm (23.6 in), A+B must =

C=100 cm (39.4 in), A+B must =

500 200 150 100 70 0

450 290 230 170 130 60

400 410 330 270 210 130

350 570 480 400 340 240

300 830 710 610 530 400

Site Requirements 45

Environmental requirements

The environmental specifications for operating your disk array must be satisfied before installation.

Altitude

The maximum altitude for disk array operation is 3,000 meters. For nonoperational or storage situations, the maximum altitude is 4,000 meters.

Air conditioning

Use separate computer room air conditioning duct work. If it is not separate from the rest of the building, it might be difficult to control cooling and air pressure levels. Duct work seals are important for maintaining a balanced air conditioning system and high static air pressure. Adequate cooling capacity means little if humidity levels increase when the ducts are exposed to warm air, producing condensation. Condensation on any disk hardware can damage the components.

Any questions regarding the adequacy of airflow construction should be referred to and evaluated by a qualified structural engineer.

46 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Temperature

Table 13. Temperature specifications

Temperature range type Range

Recommended operating temperature range 21° to 24°C

70° to 75°F

Operating temperature 16° to 32°C

61° to 89°F

Nonoperating temperature range –10° to +43°C

14° to 109°F

Humidity

Shipping and storage temperature (product packed in factory packing)

Temperature shock immunity (maximum rate of temperature change)

Over-temperature warning At 40°C

Over-temperature shutdown At 60°C

Maintain proper humidity levels. High humidity levels cause galvanic actions to occur between some dissimilar metals. This eventually causes a high resistance between connections, leading to equipment failure.

Low humidity contributes to undesirably high levels of electrostatic charges. This increases the electrostatic discharge (ESD) voltage potential. ESD can cause component damage during servicing operations.

Low humidity levels are often the result of the facility heating system and occur during the cold season. Most heating systems provide air with a low humidity level, unless the system has a built-in humidifier.

–25° to +60°C –13° to +140°F

10°C per hour 18°F per hour

At 104°F

At 140°F

Site Requirements 47

You should not see any condensation in or around the disk array under any conditions. There is no procedure for recovery from moisture condensation.

Table 14. Humidity specifications

Noncondensing relative

Humidity range type

humidity (RH)

Recommended operating humidity range at 22° C (71° F) 50% to 55% Operating humidity range at 22° C (71° F) 20% to 80%

Nonoperating humidity range 8% to 90%

Shipping and storage humidity range (product packed in factory packing) 5% to 95%

Operating maximum wet bulb temperature 26° C (79° F) Nonoperating maximum wet bulb temperature 27° C (81° F) Shipping and storage maximum wet bulb temperature 29° C (84° F)

Mechanical vibration

Continuous vibration can cause a slow degradation of mechanical parts and, when severe, can cause data errors in disk drives. Mechanical connections such as printed circuit assembly (PCA) conductors, cable connectors, and processor backplane wiring can also be affected by vibrations. Vibration specifications apply to all three axes.

Table 15. Mechanical vibration specifications

Condition Specification

Operating 0.25 mm, 5–10 Hz

0.05 G, 10–300 Hz

Nonoperating 2.5 mm, 5–10 Hz

0.5 G, 10–70 Hz

0.05 mm, 70–99 Hz

1.0 G, 99–300 Hz

Shipping and storage (product packed in factory packing) 0.5 G, 15 min.

at four most severe

resonances between 5–200 Hz

1 See ASTM D999-91 Standard Methods for Vibration Testing of Shipping Containers.

48 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Shock

Table 16. Shock specifications

Condition Specification

Operating None

Nonoperating 8 G, 15 ms

Shipping and storage (product packed in factory packing)

Horizontal: Incline impact: 1.22 m/s

1 See ASTM D5277-92 Standard Test Methods for Performing Programmed Horizontal

Impacts Using an Inclined Impact Tester.

2 See ASTM D1083-91 Standard Test Methods for Mechanical Handling of Unitized Loads

and Large Shipping Cases and Crates.

Heat dissipation and power consumption

Table 17 describes the heat dissipation and power consumption of the

XP12000 when fully loaded with the maximum number of disk drives.

Table 17. Heat dissipation and power consumption specifications

Parameter DKC Each DKU

Power consumption (kVA) 8.45 7.50 38.45

Heat dissipation (kW) 8.02 6.75 35.02

BTUs per hour 27370 23036 119514

kcal per hour 6897 5805 30117

Vertical:

Rotational edge: 0.1 m

Full array

(1 DKC and 4 DKUs)

Site Requirements 49

Acoustics

The acoustic emission specifications for the disk array are:

• 8.27 Bels (A) sound power

• 65 dB (A) sound pressure, operator position (1 meter from the floor and surface of the cabinet)

You can reduce the ambient noise level caused by equipment and air conditioning blowers in your computer room by:

• Installing a dropped ceiling covered in commercial-grade, fireresistant, acoustic-rated, fiberglass ceiling tile

• Covering the walls in sound-deadening material

• Installing foam rubber removable partitions

Dust and pollution control

Airborne contaminants and particles of a certain size and hardness can damage the disk array. Some of the most common contaminants are dust, smoke, ash, eraser debris, food crumbs, and salty air.

Mechanical filters on the disk array protect it by trapping large dust particles. Smaller particles can pass through some filters, and can eventually cause problems in mechanical parts. Prevent small dust particles from entering the computer room by maintaining its air conditioning system at a high static air pressure level.

Your HP representative can help you determine if you need to be concerned about airborne contaminants.

Metallic particulate contamination

Metallic particulates can be especially harmful around electronic equipment. This type of contamination may enter the data center environment from a variety of sources, including but not limited to raised floor tiles, worn air conditioning parts, heating ducts, rotor brushes in

50 HP StorageWorks XP12000 Disk Array Site Preparation Guide

vacuum cleaners, or printer component wear. Because metallic particulates conduct electricity, they have an increased potential for creating short circuits in electronic equipment.

Over time, very fine whiskers of pure metal can form on electroplated zinc, cadmium, or tin surfaces. If these whiskers are disturbed, they may break off and become airborne, possibly causing failures or operational interruptions. For over 50 years, the electronics industry has been aware of the relatively rare but possible threat posed by metallic particulate contamination. During recent years, a growing concern has developed in computer rooms where these conductive contaminants are formed on the bottom of some raised floor tiles.

Although this problem is relatively rare, it may be an issue within your computer room. Since metallic contamination can cause permanent or intermittent failures on your electronic equipment, HP strongly recommends that your site be evaluated for metallic particulate contamination before installation of electronic equipment.

Site Requirements 51

Data comm requirements

Route data comm cables away from areas of high static electric fields created by power transformers and heavy foot traffic. Use shielded data comm cables that meet approved industrial standards to reduce the effects of external fields.

For the XP disk array, you need:

Table 18. Computer room data comm requirements

Item Description

A dedicated analog phone line

A twisted pair (Cat 5) cable

An available LAN drop on your Intranet

A public voice phone line near the disk array

Needed for the HP StorageWorks Continuous Track XP “phone home” feature, if you plan to use it. An HP representative will configure Continuous Track XP during installation. For more information on Continuous Track XP, see the HP StorageWorks XP12000 Disk Array Owner’s Guide.

Needed to connect the XP12000 to an available Ethernet port on your public LAN. To ensure network security, consult with an HP representative and your network administrator before selecting the appropriate location of your LAN drop.

Needed to allow your staff and HP representatives to communicate inside and outside your site.

52 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Electrical requirements

Line voltage

Line voltage (AC) at the wall power outlet is a function of the local power utility and your building power distribution network. Voltages outside of the operating range of the disk array can cause intermittent system errors or a complete system shutdown. If required, an HP representative and your electrician can determine the current line voltage and make recommendations. See Appendix A for specific AC line voltage requirements.

Avoid the use of a line voltage conditioner.

Make sure that a power distribution unit (if used) provides the correct voltage to support your entire system.

Branch circuit breakers

See Appendix A for specific branch circuit requirements for your power situation.

Three-phase branch circuit breakers

The power cords supplied with each DKC or DKU configured for three-phase power are sized for connection to a 30-amp circuit.

Single-phase branch circuit breakers

The power cords supplied with each DKC or DKU configured for single-phase power are sized for connection to a 30- or 50-amp circuit.

Note 30-amp, single-phase power is available by special order only.

Site Requirements 53

Frequency

Usually, AC line frequency is determined by your local power providers. In some cases, electrical power is supplied by motor-generators. Shifts in AC line frequency can cause system errors. An HP representative can monitor the frequency of the input AC line power and make recommendations, if necessary. The disk array requires that the line frequency be within 0.5 Hz of the rated line frequency (50 Hz or 60 Hz).

See Appendix A for more information.

Safety and dedicated ground

The primary reason for grounding electrical systems is safety. The safety ground is required by the National Electric Code (USA) and most other local, regional, and national codes. In addition to safety ground, HP requires that a dedicated (earth reference) ground be installed as a common reference point for all system components. Consult with an HP representative and your electrician to ensure that your electrical system meets all local and national safety codes.

Grounding requirements

Your site’s electrical subsystem must meet all of the following conditions:

• Grounding as prescribed by your local country codes.

• An insulated grounding conductor that is identical in size and insulation material and thickness to the ungrounded branch-circuit supply conductors. It should be green, with or without yellow stripes, and is to be installed as a part of the branch circuit that supplies the unit or system. This means the ground conductor must be run in the same conduit, armored cable, or other cable bundle as the phase wires.

• The grounding conductor should be grounded to earth at the service equipment or other acceptable building earth ground such as the building frames (in case of a high-rise steel-frame structure).

• IT-configured grounding systems are not certified for use with the disk array as these grounding systems may not have solidly

54 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Receptacles

conductor-connected grounded power systems and/or they may have resistive impedance inserted in ground and/or neutral lines. The disk array requires a solidly conductor-connected ground and may require a separate neutral in the case of WYE or STAR connections. For HP disk arrays, TN grounding systems are preferred.

Each disk array cabinet has two or four separate connections to AC power.

• For disk array cabinets with two connections to AC power, each input must be capable of supporting the entire current demand for the cabinet.

• For disk array cabinets with four connections to AC power, the two inputs to AC Box 1 or the two inputs to AC Box 2 must be capable of supporting the entire current demand for the cabinet.

Figure 9 shows two examples of the fault-tolerant operation of the disk

array.

Figure 9. Examples of fault-tolerant power connections

Site Requirements 55

When receptacles are used to connect disk array components to AC power, they must include a dedicated ground connection that is insulated from the receptacle. It is important that the receptacle box be grounded with an additional ground connection that is separate from the dedicated ground. The additional ground can be hard conduit.

Specific power plugs and receptacles are required for the DKC and DKUs depending on the power option you specify when ordering the HP XP12000 disk array. The power cords on 60 Hz cabinets are shipped with plugs attached and connected. The power cords on 50 Hz cabinets are shipped without plugs. You are responsible for having the correct plugs and receptacles installed by an electrician in compliance with local electrical requirements and practices.

Caution When installing the receptacles, the electrician must ensure that each

receptacle has its own neutral (if required) and ground. Using the same neutral/ground for more than one circuit causes voltage loss and heat problems and can create a fire hazard. A shared neutral conductor that fails open-circuit can cause overvoltage damage to equipment.

See Appendix A for specific plug and receptacle part numbers and ordering information.

Power line transients

Heavy electrical loads from nearby machinery or equipment (for example, elevators or electric welders) can cause intermittent system problems with sophisticated electronic equipment, even if that equipment is on a separate circuit breaker. When faced with these conditions, provide a separate, completely independent power panel with an isolated ground and circuit breaker coming directly from the main building power source or secondary power source.

If necessary, an HP representative can measure your power line noise level and make appropriate recommendations concerning the use of line treatment devices.

56 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Maximum peak inrush and crest factor

Table 19. Maximum peak inrush

Cabinet Power Single-phase Three-phase

DKC 30-amp 46 A 34 A

50-amp 60 A Not applicable

DKU 30-amp 34 A 26 A

50-amp 56 A Not applicable

1 50-amp power configurations are single-phase only.

Table 20. Crest factors

Cabinet Power Single-phase Three-phase

DKC 30-amp 1.68 1.67

50-amp 1.56 Not applicable

DKU 30-amp 1.65 1.53

50-amp 1.50 Not applicable

1 50-amp power configurations are single-phase only.

Site Requirements 57

Uninterruptible power supply (UPS)

Most disk array units are installed in data centers where a UPS strategy is already in place. However, if you are making your first large disk array purchase, you may need a separate UPS solution.

Caution This section discusses a product UPS. If you are planning or already have

a site-wide UPS, HP recommends against using a product UPS powered by a site-wide UPS for the XP12000.

Make sure your UPS satisfies the requirements in Table 21. Table values are based on a worst-case voltage (rated voltage –10 percent) and a maximum configuration of DKC/DKUs. A phase imbalance of 15 percent is also included in the calculation.

Table 21. Single secondary input (primary offline) power requirements

Single-phase 30A Single-phase 50A Three-phase 30A

Input (Vac)

DKC

Each additional DKU

DKC

Each additional DKU

208 20.0 A 17.3 A 40.0 A 34.6 A 20.0 A

400

Not applicable Not applicable

10.4 A

In a maximum disk array configuration (one DKC and four DKUs), the array requires 31 kVA.

58 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Sources of electrical interference

Ensure that the disk array is protected from sources of electrical interference:

Table 22. Sources of electrical interference

Potential source Description

Wall outlets Convenience power outlets for building maintenance

Lightning In geographical areas subject to lightning storms, it

equipment (such as vacuum cleaners and floor buffers) must be wired from circuit breakers on a power panel separate from the computer system panel. The ground wires from these outlets must be connected to the normal building distribution panel and not to the system ground.

If a separate power source and separate ground are not provided, operation of janitorial equipment can induce electrical noise and cause abnormal operation of the computer system. Your electrician can verify whether or not maintenance outlets are on separate panels.

may by advisable to install lightning protection for both personnel and computer systems. The principles of lightning protection and personnel safety are outlined in detail in the lightning protection code contained in the National Fire Protection Association (NFPA) Handbook.

Electromagnetic interference

The disk array is specifically designed to reduce its susceptibility to radiated and conducted interference. Electromagnetic interference can cause a variety of system problems. An HP representative can advise you about the most common causes of electromagnetic interference.

Site Requirements 59

Delivery space requirements

The delivery area must provide enough space and floor strength to support the packaged equipment cartons for the disk array. Refer to the packaged dimensions in “Dimensions” (page 19) and the packaged weights in “Weights” (page 19).

Caution Make sure that your doorways and hallways provide enough clearance to

move the equipment safely from the delivery area to the computer room. Permanent obstructions such as pillars or narrow doorways can cause equipment damage. If necessary, plan for the removal of walls or doors.

Caution Make sure all floors, stairs, and elevators you use when moving the disk

array to the computer room can support the weight and size of the equipment. Failure to do so could damage the equipment or your site.

60 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Delivery and Unpacking

The disk array equipment is shipped directly from HP. If the disk array is part of a system order, HP coordinates shipment from all HP locations so that all of the equipment arrives at your site at approximately the same time.

When your equipment ships, HP provides you with carrier information and an expected delivery date. Factors beyond HP’s control can cause delivery delays. If you have not received your equipment within two weeks of its shipment from HP, contact your HP SR, who will trace your order and expedite delivery.

Caution Before delivery, make sure your site meets “Delivery space requirements”

(page 60).

Delivery and Unpacking 61

Checking for shipping shortage and damage

Upon delivery of each equipment shipment:

1. Check the carrier’s bill of lading to ensure that the items listed match the items delivered. Notify the carrier immediately if there are any discrepancies or missing items.

2. Inspect all shipping containers for signs of damage, such as dents, scratches, cuts, or water marks.

3. If you see any damage to the containers:

a. Note on the bill of lading that there is apparent damage, subject to

inspection.

b. Arrange for the carrier’s representative and an HP representative to

be present when the item in question is unpacked.

c. Contact your HP representative, who will make sure any damaged

components are replaced, regardless of the circumstances and without waiting for any claim settlements.

62 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Unpacking the equipment

HP representatives will supervise the unpacking and moving of the disk array equipment. It is your responsibility to provide the people, tools, and equipment necessary to perform these tasks.

Packaging configurations

XP disk array cabinets are shipped in one of three standard packaging configurations:

• Environmental pack — consists of stretch wrap over corner protectors. No special tools or procedures are required to unpack shipments in this form. This packaging is used for most shipments within the USA and Canada that are direct from the factory to the customer. HP uses special carriers with a dedicated fleet of trucks and specially trained personnel.

• Full packaging — consists of a pallet, wooden loading ramp, inner packaging, and outer corrugated carton assembly.

• Full packaging with wooden crate — consists of full packaging encased in a wooden crate.

Required personnel

HP recommends that three physically able personnel be available to assist with off-loading the disk array equipment from the pallet. Personnel must be knowledgeable and experienced with the safe handling of large, heavy, and sensitive computer equipment.

Required tools

• Claw hammer (if full packaging with wooden crate)

• Ratchet wrench or box-open end wrench sizes 11mm (7/16") and 19mm (3/4"), or adjustable end wrench

• 6mm hex wrench

Delivery and Unpacking 63

Unpacking process

• Scissors or box knife to cut polyester banding

• Safety glasses

• Short stepladder (helpful, but not required)

If you need to unpack the equipment without HP supervision, follow the instructions in this section.

1. Following the steps “Removing packaging materials” (page 66), unpack the DKC and DKU equipment cartons outside of the computer room to avoid debris and possible contamination of the computer room environment.

2. For software CDs, cables, and other installation hardware, leave the sealed cartons or packages intact. HP representatives will unpack them when they install and configure the disk array.

3. As you unpack the cartons, match the delivered items to the packing list (invoice) for each carton. Contact your HP SR immediately if any items are missing or are not the ones you ordered.

4. Move all equipment to the computer room before the installation date.

Safety precautions

Caution Be very careful when handling the equipment. Do not drop the equipment

from a height of more than 0.5 cm (0.2 in). Floor unevenness must be less than 1 cm (0.4 in).

Warning

The DKC and DKU are very heavy. To avoid injury, use appropriate lifting tools and have three people unpack and move the equipment.

64 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Caution Any movement of the equipment by forklift should be done prior to

unpacking. The carton assembly provides the most secure support of the equipment during movement. Transporting the equipment by forklift after the packaging carton has been removed is not advisable.

Caution DKCs and DKUs are top heavy and contain very sensitive electronic and

mechanical components.When moving on frame casters, the rolling surface must be able to support the equipment weight and must be free of surface conditions that could cause shock or vibration to the cabinet contents.

Warning

When using sharp objects or cutting tools, make sure that no part of your body lies in the path of the blade bit or point.

Caution When detached from each other, DKCs and DKUs do not have side panels.

Exposed printed circuit boards (PCB) are present; however, normal handling of the cabinet by the metal frames does not pose any ESD risks.

Caution When disk array equipment is not located in a data center or computer

room, it must be stored in a controlled area that meets environmental requirements ((page 46).

Delivery and Unpacking 65

Removing packaging materials

Unpack the DKC first. DKC packaging contains a wooden ramp; standard DKU packaging does not

. You will use the ramp to unload both the DKC

and DKUs.

1. If shipped in a wooden crate:

a. Using an 11mm (7/16") ratchet or wrench, remove the six lag screws

at the base of crate.

b. Using the claw end of a claw hammer, remove the crate clamps.

Warning

Crate clamps are under tension. Wear safety glasses and hold onto the clamp with your free hand during removal.

c. Remove the crate panels.

1 DKUs shipped as upgrades (without a DKC) will contain a ramp.

66 HP StorageWorks XP12000 Disk Array Site Preparation Guide

P-fasteners

Polyester bands

Nails

Figure 10. Typical full frame outer packaging

2. Cut and remove the polyester bands.

3. Remove the nails attaching the carton to the pallet.

4. Remove the plastic carton fasteners (p-fasteners).

5. Remove the carton.

Delivery and Unpacking 67

Poly bag

Corner pads

Wooden ramp

Accessory box

Adapter plate

Figure 11. Typical full frame inner packaging with ramp

6. Remove the accessory boxes, ramp, and corner pads.

7. Using a 6mm hex and 19mm wrench, remove the adapter plates that anchor the cabinet to the pallet.

8. Remove the poly bag covering the cabinet.

9. Following the instructions provided on the wooden ramp, attach the ramp to the pallet and roll the cabinet onto the floor.

10. Visually check the unit for any damage.

68 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Electrical Specifications

The detailed electrical specifications in this appendix are provided to help your site electrician perform any necessary electrical work related to site prep.

Electrical Specifications 69

AC line voltage requirements

50-amp, single-phase DKC

Table 23. 50-amp, 50 or 60 Hz, single-phase DKC operation

Nominal rated voltage (Vac)

Parameter 200 208

220 230 240

Minimum operating voltage (Vac) 184 191 202 212 221

Maximum operating voltage (Vac) 212 220 233 244 254

Rated line current per power cord (Arms) 22.6 21.7 20.5 19.6 18.8

Number of power cords 22222

Recommended circuit breakers 50A 50A 50A 50A 50A

Number of circuit breakers 22222

Dropout carry-through time at minimum line voltage (ms) 60 60 60 60 60

1 60 Hz only.

30-amp, single-phase DKC

Table 24. 30-amp, 50 or 60 Hz, single-phase DKC operation

Nominal rated voltage (Vac)

Parameter 200 208

Minimum operating voltage (Vac) 184 191 202 212 221

Maximum operating voltage (Vac) 212 220 233 244 254

220 230 240

Rated line current per power cord (Arms) 11.3 10.9 10.3 9.8 9.4

Number of power cords

44444

Recommended circuit breakers 30A 30A 30A 30A 30A

Number of circuit breakers 44444

Dropout carry-through time at minimum line voltage (ms) 60 60 60 60 60

1 60 Hz only. 2 Units with only two power cords require only two circuit breakers.

70 HP StorageWorks XP12000 Disk Array Site Preparation Guide

30-amp, three-phase DKC

Table 25. 30-amp, 50 or 60 Hz, three-phase DKC operation

Nominal rated voltage (Vac)

Parameter 200 208

220 230 240 380 400 415

Minimum operating voltage (Vac) 184 191 202 212 221 350 368 382

Maximum operating voltage (Vac) 212 220 233 244 254 403 424 440

Rated line current per power cord (Arms) 13 12.5 11.9 11.3 10.9 6.9 6.5 6.3

Number of power cords 2 2222222

Recommended circuit breakers 30A 30A 30A 30A 30A 30A 30A 30A

Number of circuit breakers 2 2222222

Dropout carry-through time at minimum

60 60 60 60 60 60 60 60

line voltage (ms)

1 60 Hz only.

50-amp, single-phase DKU

Table 26. 50-amp, 50 or 60 Hz, single-phase DKU operation

Nominal rated voltage (Vac)

Parameter 200 208

220 230 240

Minimum operating voltage (Vac) 184 191 202 212 221

Maximum operating voltage (Vac) 212 220 233 244 254

Rated line current per power cord (Arms) 18 17.3 16.4 15.7 15.0

Number of power cords 22222

Recommended circuit breakers 50A 50A 50A 50A 50A

Number of circuit breakers 22222

Dropout carry-through time at minimum line voltage (ms) 60 60 60 60 60

1 60 Hz only.

Electrical Specifications 71

30-amp, single-phase DKU

Table 27. 30-amp, 50 or 60 Hz, single-phase DKU operation

Nominal rated voltage (Vac)

Parameter 200 208

220 230 240

Minimum operating voltage (Vac) 184 191 202 212 221

Maximum operating voltage (Vac) 212 220 233 244 254

Rated line current per power cord (Arms) 9 8.7 8.2 7.8 7.5

Number of power cords 44444

Recommended circuit breakers 30A 30A 30A 30A 30A

Number of circuit breakers

44444

Dropout carry-through time at minimum line voltage (ms) 60 60 60 60 60

1 60 Hz only.

2 Units with only two power cords require only two circuit breakers.

30-amp, three-phase DKU

Table 28. 30-amp, 50 or 60 Hz, three-phase DKU operation

Nominal rated voltage (Vac)

Parameter 200 208

220 230 240 380 400 415

Minimum operating voltage (Vac) 184 191 202 212 221 350 368 382

Maximum operating voltage (Vac) 212 220 233 244 254 403 424 440

Rated line current per power cord (Arms) 10.4 10.0 9.4 9.0 8.7 5.5 5.2 5.0

Number of power cords 2 2222222

Recommended circuit breakers 30A 30A 30A 30A 30A 30A 30A 30A

Number of circuit breakers 2 2222222

Dropout carry-through time at minimum

60 60 60 60 60 60 60 60

line voltage (ms)

1 60 Hz only.

72 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Receptacle part numbers and ordering information

Table 29 lists the plug and receptacle part numbers for 60 Hz

configurations of the XP12000 disk array.

Table 29. 60 Hz power plugs and receptacles

Power source Breaker rating Plug Receptacle

Single-phase 30 A Russellstoll 3750DP Russellstoll 3933 (alt. 9C33U0) or

3753 (alt. 9R33U0W)

50 A Russellstoll 9P53U2 Russellstoll 9C53U2 or 9R53U2W

Three-phase 30 A Russellstoll 3760PDG Russellstoll 3934 (alt. 9C34U0) or

3754 (alt. 9R34U0W)

Russellstoll connectors are available through most electrical distributors. HP has arranged for the distributors listed below to stock these connectors. These distributors are able to ship worldwide via your preferred carrier.

Beck Electrical Supply 2775 Goodrick Avenue Richmond, CA 94801 USA Telephone: (800) 466-4395 Fax: (800) 466-5442 Contact: Ken Mogan casales@beckelectric.com

Source Research, Inc. (SRI) 2160 Sunnydale Boulevard Clearwater, FL 33765-2108 USA Telephone: (800) 356-0259 Contact: Erik Peterson, telephone extension 302

http://www.sourceresearch.com/index.cfm

Electrical Specifications 73

Three-phase cabling for the USA (60 Hz)

Each three-phase DKU has two main disconnect devices (two main breakers for dual power lines) so that AC power to the unit can be supplied from separate power distribution panels with two power-supply cords.

Caution An HP representative should be present whenever the disk array is being

connected to a new power source for the first time.

Connecting the external power-supply cords

The XP12000 disk array is factory-configured for 30-amp, three-phase power.

When the disk array uses 30-amp, three-phase input power, the DKC and DKUs have two power cords each.

Figure 12. 30-amp, three-phase power cords

If one power source malfunctions, the other power source assumes the total load, providing uninterrupted operation. HP recommends that each power

74 HP StorageWorks XP12000 Disk Array Site Preparation Guide

cord have a separate electrical circuit as its source, in case of a circuit failure. Each power-supply cord is supplied with an attachment plug type Russellstoll 3760PDG.

Be sure to install Russellstoll 3934 (alternate, 9C34U0) or 3754 (alternate, 39R34U0W) socket receptacles between the power distribution panel of the building and the power plugs for the unit.

The power cords provided with the disk array are nonshielded, type ST or equivalent with four #8 AWG (minimum) conductors terminated at one end with an assembled plug connector.

Branch circuit requirements

All protective devices must comply with national standards of the country where the units are to be installed. If a protective device interrupts any supply conductor, it must also interrupt all other supply conductors.

Overcurrent protection is not required for the neutral conductor of this unit. Only 50 Hz, three-phase configurations have a neutral conductor.

Electrical Specifications 75

Three-phase AC cabling for Europe (50 Hz)

Caution An HP representative should be present whenever the disk array is being

connected to a new power source for the first time.

Connecting the power-supply cords

All 50 Hz, European XP12000 disk array cabinets are shipped with unterminated power cords. Your electrician must select and install the correct power plug. Be sure to prepare the socket receptacles and power cords between the power distribution board of the building and the attachment plugs for the unit. 30-amp power cords of type H07RN-F or equivalent, with five 6 mm unit.

Caution Be sure to connect the power cords to the distribution panel as shown in

Figure 13. Improper wiring of the neutral conductor may cause damage to

the disk array. To reduce the risk of a wrong connection, use a plug and socket that are approved for this disk array. It is your electrician’s responsibility to select and install the proper plug.

conductors per cord, are provided with the

Figure 13. Three-phase power connections for Europe

76 HP StorageWorks XP12000 Disk Array Site Preparation Guide

When connecting to 380 to 415 volt service, a WYE configuration with neutral and ground conductors (in addition to the three-phase wires, for a total of five wires) is required.

Warning

High leakage current can occur between the power supply and the unit. To avoid electrical shock, be sure to make the protective earth connection before the supply connections.

Branch circuit requirements

When the supplied line to line voltage is in the 380 to 415 volt range, the connection must be a five-wire WYE or STAR connection.

All protective devices must comply with national standards of the country where the units are to be installed. If a protective device interrupts a supply conductor, it must also interrupt all other supply conductors.

Overcurrent protection is also required for the neutral conductor.

Electrical Specifications 77

Single-phase AC cabling for the USA

When configured for 50-amp, single-phase power, each XP12000 disk array cabinet has two power cords and two main disconnect devices so that AC power can be supplied from separate power distribution panels. When configured for 30-amp, single-phase power, each XP12000 disk array cabinet has four power cords and four main disconnect devices.

Caution An HP representative should be present whenever the disk array is being

connected to a new power source for the first time.

Connecting the power-supply cords

The XP12000 can be factory-configured for 50-amp or 30-amp, single-phase power.

50-amp, single-phase power

Each 50-amp XP12000 disk array cabinet has two power-supply cords with attachment plug type Russellstoll 9P53U2.

Figure 14. 50-amp, single-phase power cords

78 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Be sure to install Russellstoll 9C53U2 or 9R53U2W socket receptacles between the power distribution panel of the building and the power plugs for the unit.

The power cords provided with the disk array are nonshielded, type ST or equivalent with three #6 AWG (minimum) conductors terminated at one end with an assembled 9C53U2 plug connector.

30-amp, single-phase power

Each 30-amp XP12000 disk array cabinet has four power-supply cords with attachment plug type Russellstoll 3750DP.

Figure 15. 30-amp, single-phase power cords

Be sure to install Russellstoll 3933 (alternate, 9C33U0) or 3753 (alternate, 9R33U0W) socket receptacles between the power distribution panel of the building and the power plugs for the unit.

The power cords provided with the disk array are nonshielded, type ST or equivalent with three #10 AWG (minimum) conductors terminated at one end with an assembled plug connector.

Electrical Specifications 79

Branch circuit requirements

Note In many cases, local codes do not allow a branch circuit fitted with a

50-amp receptacle or connector to be protected by an overcurrent-protection device with a rating lower than 50 amps. You can order the XP12000 disk array with the 30-amp power option to comply with these local codes. Your electrician knows the appropriate code requirements for your location/site.

80 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Single-phase cabling for Europe

Caution An HP representative should be present whenever the disk array is being

connected to a new power source for the first time.

Connecting the power-supply cords

50-amp power cords

Each 50-amp XP12000 disk array cabinet has two power-supply cords. The power cords included with the unit are type H07RN-F or equivalent with three 10 mm

Caution Be sure to connect the power cords to the distribution panel as shown in

Figure 16. Improper wiring of the neutral conductor may cause damage to

the disk array. To reduce the risk of a wrong connection, use a plug and socket that are approved for this disk array. It is your electrician’s responsibility to select and install the proper plug.

conductors.

Figure 16. Single-phase power connections for Europe

Electrical Specifications 81

30-amp power cords

Each 30-amp XP12000 disk array cabinet has four power-supply cords. The power cords included with the unit are type H07RN-F or equivalent with three 6 mm

Caution Be sure to connect the power cords to the distribution panel as shown in

Figure 16. Improper wiring of the neutral conductor may cause damage to

the disk array. To reduce the risk of a wrong connection, use a plug and socket that are approved for this disk array. It is your electrician’s responsibility to select and install the proper plug.

Warning

High leakage current can occur between the power supply and the unit. To avoid electrical shock, be sure to make the protective earth connection before the supply connections.

Branch circuit requirements

conductors.

To protect the disk array, your building must be wired correctly. Each supply (“hot”) conductor must be protected by a short-circuit protective device and by an overcurrent protective device. Table 23 (page 70), Table 24 (page 70), Table 26 (page 71), and Table 27 (page 72) provide specifications for the overcurrent protective devices required for single-phase operation. All protective devices must comply with national standards of the country where the units are to be installed. If a protective device interrupts any supply conductor, it must also interrupt all other supply conductors.

Overcurrent protection is also required for the neutral conductor.

Note In many cases, local codes do not allow a branch circuit fitted with a

50-amp receptacle or connector to be protected by an overcurrent-protection device with a rating lower than 50 amps. You can order an XP12000 disk array with the 30-amp power option to comply with these local codes. Your electrician knows the appropriate code requirements for your location/site.

82 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Glossary

ACP Array control processor. The ACP handles the passing of data between the

cache and the physical drives held in the DKUs. ACPs work in pairs, providing a total of eight SCSI buses. Each SCSI bus associated with one ACP is paired with a SCSI bus on the other ACP pair element. In the event of an ACP failure, the redundant ACP takes control. Both ACPs work together sharing the load.

AL Arbitrated loop.

AL-PA Arbitrated loop physical address.

allocation The ratio of allocated storage capacity versus total capacity as a percentage.

“Allocated storage” refers to those LDEVs that have paths assigned to them. The allocated storage capacity is the sum of the storage of these LDEVs. Total capacity refers to the sum of the capacity of all LDEVs on the disk array.

array group A group of 4 or 8 physical hard disk drives (HDDs) installed in an XP disk

array and assigned a common RAID level. RAID1 2d+2d array groups are made up of 4 HDDs. A RAID1 4d+4d group is two 4 HDD array groups concatenated together. RAID5 array groups are made up of 4 or 8 HDDs, depending on whether they are RAID5 3d+1p or RAID5 7d+1p, respectively. All RAID6 array groups are made up of 8 HDDs.

BC The HP StorageWorks Business Copy XP software program, which enables

you to maintain up to nine internal copies of logical volumes on the disk array.

BS Basic supply.

BTU British thermal unit.

Glossary 83

°C Degrees centigrade/Celsius.

C-Track The HP StorageWorks Continuous Track XP software program, which

detects internal hardware component problems on a disk array and automatically reports them to the HP STC.

CA The HP StorageWorks Continuous Access XP software program, which

enables you to create and maintain duplicate copies of the data store on a local disk array.

ca Cache.

cache Very high speed memory that is used to speed I/O transaction time. All

reads and writes to the XP array family are sent to the cache. The data is buffered there until the transfer to/from physical disks (with slower data throughput) is complete.

The benefit of cache memory is that it speeds I/O throughput to the application. The larger the cache size, the greater amount of data buffering can occur and the greater throughput to the applications.

XP arrays support a range of cache memory. In the event of power loss, battery power allows the contents of the cache boards to survive for up to 48 hours.

CDE Common desktop environment.

CE Customer engineer.

CFW Cache fast write.

CH Channel.

channel adapter (CHA)

The channel adapter (CHA) provides the interface between the disk array and the external host system. Occasionally this term is used synonymously with the term channel host interface processor (CHIP).

channel host

Synonymous with the term channel adapter (CHA).

interface processor (CHIP)

channel processor

The processors located on the channel adapter (CHA).

(CHP)

84 HP StorageWorks XP12000 Disk Array Site Preparation Guide

CHPID Channel path identifier.

CKD Count key data.

CL Cluster.

command device A volume on the disk array that accepts CA or BC control operations which

are then executed by the disk array.

configuration file A file that defines the pair configurations.

consistency group ID (CTGID)

The group identifier for which the disk array guarantees the sequence of asynchronous data transfer for the asynchronous CA volume group.

control unit To organize the storage space attached to the DKC, you can group similarly

configured logical devices (LDEVs) with unique control unit images (CUs). CUs are numbered sequentially. The disk array supports a certain number of CUs, depending on the disk array model. Each CU can manage multiple LDEVs. Therefore, to uniquely identify a particular LDEV requires both the CU number and the LDEV number.

CSA Canadian Standards Association.

CU Control unit.

CVS Custom volume size (also called virtual LVI).

daemon A process that runs in the background and performs a specific operation at

predefined times in response to certain events.

DASD Direct access storage device.

DCR Dynamic cache residency.

DE HP StorageWorks Data Exchange XP.

DFDSS Data Facility Dataset Services.

DFSMS Data Facility System Managed Storage.

DFW DASD fast write.

disk adapter (DKA) Synonymous with the term ACP.

Glossary 85

disk control frame (DKC)

The disk control frame (DKC) refers to the array hardware that houses the channel adapters and service processor (SVP).

disk array frame (DKU)

disk recovery and restore unit (DRR)

The disk array frame (DKU) refers to the array hardware that houses the physical disks in the array.

The unit located on the ACP that is responsible for data recovery and restoration in the event of a cache failure.

disk group The physical disk locations associated with a parity group.

disk type The manufacturing label burned into the physical disk controller firmware.

In most cases, the disk type is identical to the disk model number.

DMP Dynamic multipathing.

dr Drive.

DSF Device support facilities.

DW Duplex write.

DWL Duplex write line.

ECKD Extended count key data.

EFS The IRIX standard file system.

emulation modes The logical devices (LDEVs) associated with each RAID group can have

one of the following emulation modes. These modes change the behavior of the disks and determine their size.

OPEN-3: 2.46 GB OPEN-8: 7.38 GB OPEN-9: 7.42 GB OPEN-E: 13.56 GB OPEN-K: Not available on XP12000 OPEN-L: 36 GB OPEN-M Not available on XP12000 OPEN-V: User-defined custom size

EOF End of field.

86 HP StorageWorks XP12000 Disk Array Site Preparation Guide

EPO Emergency power-off.

EREP Error reporting.

ESA Enterprise Systems Architecture.

ESCON Enterprise System Connection (the IBM trademark for optical channels).

expanded LUN A LUN is normally associated with only a single LDEV. The LUSE feature

allows a LUN to be associated with 1 to 36 LDEVs. Essentially, LUSE makes it possible for applications to access a single large pool of storage. The LUSE feature is available when the HP StorageWorks LUN Configuration Manager product is installed.

ExSA Extended serial adapter.

failover Disconnecting a failed portion and replacing it with another normal portion

or alternative portion in order to continue functioning.

°F Degrees Fahrenheit.

FAL File access library (part of the Data Exchange software).

FBA Fixed-block architecture.

FC Fibre Channel.

FC-AL Fibre Channel arbitrated loop.

FCC Federal Communications Commission.

FCP Fibre Channel Protocol.

FCU File conversion utility (part of the Data Exchange software).

FDR Fast dump/restore.

fence level A level for selecting rejection of a write I/O request from the host according

to the condition of mirroring consistency.

F/M Format/message.

ft. Foot or feet.

FWD Fast wide differential.

Glossary 87

fx The IRIX disk utility.

GB Gigabytes.

GLM Gigabyte link module.

HA High availability.

HBA Host bus adapter.

HCD Hardware configuration definition.

HORCM_CMD A section of the RAID Manager instance configuration file that defines the

disk devices used by RAID Manager to communicate with the disk array.

HORCM_DEV A section of the RAID Manager instance configuration file that defines the

volumes of the instance.

HORCM_INST A section of the RAID Manager instance configuration file that defines

how RAID Manager groups link to remote RAID Manager instances.

HORCM_MON A section of the RAID Manager instance configuration file that defines the

instance you are configuring.

host mode Each port can be configured with various options referred to as host modes.

These modes are represented as two-digit hexadecimal numbers. The first digit, usually 0, represents different things on different arrays. The second hex digit represents the host system type. For example, the 8 in mode 08 represents an HP-UX host.

hot standby Using two or more servers as a standby in case of a primary server failure.

HP Hewlett-Packard Company.

H/W Hardware.

Hz Hertz.

ICKDSF A DSF command used to perform media maintenance.

IDCAMS Access method services (a component of Data Facility Product).

IML Initial microprogram load.

in. Inches.

88 HP StorageWorks XP12000 Disk Array Site Preparation Guide

I/O Input/output (applies to an operation or device).

IOCP Input/output configuration program

instance An independent copy of RAID Manager. Instances are local or remote and

can run on the same host.

JCL Job control language.

KB Kilobyte.

kcal Kilocalorie.

kg Kilogram.

km Kilometer.

kVA Kilovolt-ampere.

kW Kilowatt.

LAN Local area network.

lb. Pound.

LCP Local control port.

LD, LDEV Logical device. An LDEV is created when a RAID group is carved into

pieces according to the selected host emulation mode (that is, OPEN-3, OPEN-8, OPEN-9). The number of resulting LDEVs depends on the selected emulation mode. The term LDEV is often used synonymously with the term volume.

LED Light emitting diode.

local disk A local disk in the host.

local instance The instance currently being configured or the instance to which commands

are issued.

LPAR Logical partition.

LCP Link control processor or local control port.

LRU Least recently used.

Glossary 89

LU Logical unit.

LUN Logical unit number. A LUN results from mapping a SCSI logical unit

number, port ID, and LDEV ID to a RAID group. The size of the LUN is determined by the emulation mode of the LDEV, and the number of LDEVs associated with the LUN. For example, a LUN associated with two OPEN-3 LDEVs has a size of 4,693 MB.

LUSE Logical unit size expansion.

LV I Logical volume image.

LV M Logical Volume Manager.

LVM m irro r A disk duplicating function provided by Logical Volume Manager (LVM)

(capable of triplicating disks).

m Meters.

MB Megabytes.

MCU Main control unit.

mirroring

The consistency (usability) of data in a volume (for example, S-VOL).

consistency

mm Millimeters.

MP Microprocessor.

MPLF Multipath Locking Facility.

MR Magnetoresistive.

ms, msec Milliseconds.

mutual hot standby

Two servers that are poised to cover for each other if necessary.

system

MVS Multiple Virtual Storage (including MVS/370, MVS/ESA, MVS/XA).

NHAS Novell High Availability Server.

node Logically speaking, an environment where instances can be executed.

Physically, a processor, which is an element of a cluster system.

90 HP StorageWorks XP12000 Disk Array Site Preparation Guide

NVS Nonvolatile storage.

OFC Open Fibre Control.

OLM Optical link module.

ORM Online read margin.

OS Operating system.

P/DAS PPRC/dynamic address switching.

PA Physical address.

parity group A parity group is a mode of disk operation and configuration. It is

synonymous with the term “array group.”

partition Dividing a specific physical disk according to the HP-UX kernel or device

driver layer into two or more areas as if there are two or more physical disks.

path Paths are created by associating a port, a target, and a LUN ID to one or

more LDEVs.

PCI Power control interface or peripheral component interconnect.

PM HP StorageWorks Performance Manager XP software.

port The number of supported ports on an XP disk array depends on the number

of supported I/O slots and the number of ports available per I/O adapter. The XP family of disk arrays supports SCSI, Fibre Channel (FC/AL), ESCON, and FICON I/O interfaces. I/O support can vary with the selected

disk array.

Ports are named based upon their port group and port letter. Examples of port names include CL1-A through CL1-R and CL2-A through CL2-R (letters I and O are skipped).

P-P Point-to-point.

PPRC Peer-to-peer remote copy.

PS Power supply.

Glossary 91

P-VOL The primary or main volume that contains the data to be copied.

RS Russellstoll

, a brand of electrical plugs and receptacles manufactured by

Thomas & Betts Corporation.

RAID Redundant array of inexpensive disks.

RAID group See “array group.”

RAID level A RAID Level is one of the ways that disk drives are grouped together in a

RAID to improve performance, data availability/reliability or both. RAID levels are defined from RAID0 to RAID6. HP StorageWorks Disk Arrays in the XP product family support RAID1, RAID5 and RAID6. Not all of these RAID levels are supported by all XP family members. Consult the owner's guide or your HP representative for the details of which RAID levels are supported by your specific XP disk array.

RAM Random access memory.

remote instance The instance to which the local instance communicates as configured in the

HORCM_INST section of the RAID Manager instance configuration file.

RISC Reduced instruction set computer.

RM HP StorageWorks RAID Manager XP.

RM instance configuration file

A file that defines the link between a volume and a RAID Manager instance. This file consists of four sections: HORCM_MON, HORCM_CMD, HORCM_DEV, and HORCM_INST.

R-SIM Remote service information message.

R/W, r/w Read/write.

S/390 IBM System/390 architecture.

SAM System Administration Manager.

script file A file containing a shell script.

SCSI Small computer system interface.

sec. Second.

seq. Sequential.

92 HP StorageWorks XP12000 Disk Array Site Preparation Guide

SGI Silicon Graphics Incorporated.

shell script A command sequence executed by a UNIX shell.

Sidefile An area of cache used to store the data sequence number, record location,

record length, and queued control information before transmit over the ESCON link.

SIM Service information message.

SMI-S Storage Management Initiative Specification.

SMIT System Management Interface Tool.

SMS System managed storage.

SNMP Simple Network Management Protocol.

special files Files that indicate physical devices and are different from regular files in

the UNIX system. The functions of the device drivers (that is, access to system peripherals) become available through these special files.

SSID Storage subsystem identification.

STC HP Storage Technology Center.

SVP Service processor, which is the laptop PC that is built into the DKC. The

SVP provides a direct interface into the disk array. SVP use is reserved for HP support representatives only.

S-VOL Secondary or remote volume. The copy volume that receives the data from

the primary volume.

takeover The actions of a standby server that takes over processing from the

previously active server.

TB Terabyte.

TCP/IP Transmission control protocol/Internet protocol

TID Ta r g et ID.

TPF Transaction processing facility.

TSO Time-sharing option (an IBM System/370 operating system option).

Glossary 93

UCB Unit control block.

UL Underwriters’ Laboratories.

VDE Verband Deutscher Elektrotechniker.

VM Virtual machine (an IBM S/390 system control program).

VOLID Vol u m e I D .

volser Volume serial number.

Vo lu m e Synonymous with LDEV.

XRC Extended Remote Copy.

VSE Virtual Storage Extension (an IBM S/390 operating system).

VTOC Volume table of contents.

XA System/370 Extended Architecture.

XDF Extended distance feature (for ExSA channels).

XF IRIX extended file system.

XLV Extended logical volume manager.

94 HP StorageWorks XP12000 Disk Array Site Preparation Guide

Index

acoustics 50 additional components 20 air conditioning 46

and dust control 50

and metallic particulate contamination 50 air pressure 25, 46, 50 airborne contaminants 50 altitude 46 antistatic carpeting 29 antistatic containers 26 authorized reseller 9

branch circuit requirements 75, 77, 80, 82 building codes 25, 27, 54, ??–80, ??–82

cables 32

and mechanical vibration 48

and raised floors 28

as safety hazards ??–27, 33

Cat 5 52

floor cutouts for 29–31

in floorplans 32

routing 52

sealing 25

shielded 52

unpacking 64

circuit breakers 53, 70, 71, 72 clearance, required 33–45 components, additional 20 computer room

air pressure 25 data comm requirements 52 electrical requirements 53 environmental requirements 46–51 general requirements 25–26 vapor barrier 25

windows 25 conductive flooring 26 conductive furniture 26 conductive wax 26 configurations, supported for the disk array 18 Continuous Track XP 52 conventions, document 7 customer, site prep responsibilities of 12

data comm requirements 52

HP XP12000 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

About this guide

Related information

Document conventions and symbols

Getting help

HP technical support

HP storage web site

HP authorized reseller

Revision history

Site Prep Team and Tasks

The site prep team

HP representatives

Customer

Site prep tasks

Site prep checklist

Site prep time allowances

Site Requirements

Disk array physical specifications

Dimensions

Weights

Calculating the weight of your disk array configuration

Weight calculation example

General computer room requirements

Preventing electrostatic discharge

Safety requirements

Fire safety

Equipment servicing hazards

Raised floor requirements

Floor covering

Floor cutouts

DKC floor cutouts

DKU floor cutout

Space planning requirements

The space planning process

Floor clearance

Environmental requirements

Altitude

Air conditioning

Temperature

Humidity

Mechanical vibration

Shock

Heat dissipation and power consumption

Acoustics

Dust and pollution control

Metallic particulate contamination

Data comm requirements

Electrical requirements

Line voltage

Branch circuit breakers

Three-phase branch circuit breakers

Single-phase branch circuit breakers

Frequency

Safety and dedicated ground

Grounding requirements

Receptacles

Power line transients

Maximum peak inrush and crest factor

Uninterruptible power supply (UPS)

Sources of electrical interference

Delivery space requirements

Delivery and Unpacking

Checking for shipping shortage and damage

Unpacking the equipment

Packaging configurations

Required personnel

Required tools

Unpacking process

Safety precautions

Removing packaging materials

AC line voltage requirements

50-amp, single-phase DKC

30-amp, single-phase DKC

30-amp, three-phase DKC

50-amp, single-phase DKU

30-amp, single-phase DKU