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Installation Requirements

2–19

Hitachi Universal Storage Platform VM Installation Planning Guide

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Figure 2-10: Breaker Configurations for the Secondary Rack

PS00

PS01

x 15

PS10

PS11

x 15

PS20

PS21

x 15

PS30

PS31

x 15

DKU-R2

Disk Chassi s

PS00

PS01

x 15

PS10

PS11

x 15

PS20

PS21

x 15

PS30

PS31

x 15

DKU-R3

Disk Chassi s

PDU

Secondary Rack

30A

Breaker

30A

Breaker

30A

Brea ker

30A

Breaker

Power Cables

Secondary Rack with

one

Disk Chassis

installed

Secondary Rack with

two

Disk Chassis

installed

PS00

PS01

x 15

PS10

PS11

x 15

PS20

PS21

x 15

PS30

PS31

x 15

DKU-R2

Disk Chass is

PDU

Secondary Rack

30A

Breaker

30A

Breaker

Power Cable

When a second Disk Chassis is added into the Secondary Rack, two

additional 30A breakers are required

Secondary Rack Configurations – Including one or two Disk Chassis

PS = Power Supply

CL1 = Cluster 1, CL2 = Cluster 2

CB = Circuit Breaker

DKU = Disk Chassis

SBX-Chassis = Additional SVP/Battery Backup Chassis

(Power obtained from DKC Control Frame)

DKC = Control Frame

PDU

Connecting to 30A
breaker is not
required when

Secondary Rack
includes only one
Disk Chassis

Connecting to 30A

breaker is not

required when

Secondary Rack

includes only one

Disk Chassis

Содержание Universal Storage Platform VM

Страница 1: ...Product Version Document Organization Getting Help Contents FASTFIND LINKS MK 97RD6679 05 Hitachi Universal Storage Platform VM Installation Planning Guide ...

Страница 2: ...nditions of Hitachi Data Systems applicable agreements All of the features described in this document may not be currently available Refer to the most recent product announcement or contact your local Hitachi Data Systems sales office for information on feature and product availability This document contains the most current information available at the time of publication When new and or revised ...

Страница 3: ...ventions viii Convention for Storage Capacity Values viii Getting Help ix Comments ix 1 Planning for Installation 1 1 Responsibilities 1 2 Customer Responsibilities 1 2 Hitachi Data Systems Responsibilities 1 2 Installation Planning Tasks 1 2 Installation Planning Checklist 1 4 2 Installation Requirements 2 1 Safety Requirements 2 2 Delivery Requirements 2 2 Universal Storage Platform VM in HDS Su...

Страница 4: ...econdary Rack 2 14 Load 2 15 Door Requirements 2 15 Minimum distance between components and nearby surfaces 2 15 Cooling Fan Requirements 2 15 Power Specifications and Requirements 2 16 HDS Supplied Rack 2 16 Power Specifications and Power Supplies 2 16 Breaker Configurations 2 18 Power Connection 2 21 Input Voltage and Input Frequency 2 25 Circuit Breakers and Plugs 2 25 Customer Supplied Rack 2 ...

Страница 5: ...form VM and maintain a copy for reference This preface includes the following information Safety and Environmental Notices Intended Audience Product Version Document Revision Level Source Documents for this Revision Changes in this Revision Document Organization Referenced Document Document Conventions Convention for Storage Capacity Values Getting Help Comments Notice The use of the Hitachi Unive...

Страница 6: ...ELBAREN NÄHE DER VERBRAUCHERANLAGE ANZUORDNEN 4 POLIGE ABSCHALTUNG Maschinenlärminformationsverordnung 3 GSGV 18 01 1991 Der höchste Schalldruckpegel beträgt 70 db A oder weniger gemäß ISO 7779 CLASS 1 LASER PRODUCT WARNING This is a Class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures WARNUNG Dies ist ...

Страница 7: ...eplaces MK 97RD6079 MK 97RD6679 01 December 2007 Revision 1 supersedes and replaces MK 97RD6079 00 MK 97RD6679 02 August 2008 Revision 2 supersedes and replaces MK 97RD6079 01 MK 97RD6679 03 November 2008 Revision 3 supersedes and replaces MK 97RD6079 02 MK 97RD6679 04 January 2009 Revision 4 supersedes and replaces MK 97RD6079 03 MK 97RD6679 05 July 2009 Revision 5 supersedes and replaces MK 97RD...

Страница 8: ... 1 0003 bytes 1 TB 1 0004 bytes 1 PB 1 0005 bytes Logical storage capacity values e g logical device capacity are calculated based on the following values 1 KB 1 024 bytes 1 MB 1 024 KB or 1 0242 bytes 1 GB 1 024 MB or 1 0243 bytes 1 TB 1 024 GB or 1 0244 bytes 1 PB 1 024 TB or 1 0245 bytes 1 block 512 bytes Acronyms and Abbreviations Defines the acronyms and abbreviations used in this document Ch...

Страница 9: ...rage Navigator configuration information use the FD Dump Tool The service information messages SIMs including reference codes and severity levels displayed by Storage Navigator The Hitachi Data Systems customer support staff is available 24 hours day seven days a week If you need technical support please call United States 800 446 0744 Outside the United States 858 547 4526 Comments Please send us...

Страница 10: ...x Preface Hitachi Universal Storage Platform VM Installation Planning Guide ...

Страница 11: ...Platform VM Installation Planning Guide 1 Planning for Installation This chapter describes the requirements and procedures for planning to install the Universal Storage Platform VM Responsibilities Installation Planning Tasks Installation Planning Checklist ...

Страница 12: ...eded during the installation planning process for your specific site and operational configuration Coordinating Hitachi Data Systems resources to ensure a successful installation and configuration of the Universal Storage Platform VM Installation Planning Tasks You the customer are responsible for performing the following tasks with assistance as needed from the Hitachi Data Systems account team t...

Страница 13: ...tacles and rack 5 Customer supplied rack If the Universal Storage Platform VM will be installed in a customer supplied rack review the documentation for the rack with your Hitachi Data Systems account team to ensure that the rack meets all applicable requirements Installation of the Universal Storage Platform VM in a customer supplied rack requires more time than installation in an HDS supplied ra...

Страница 14: ...list Yes is checked for all entries will ensure smooth and efficient installation of the Universal Storage Platform VM Definition of terms Data center The room at the customer site in which the Universal Storage Platform VM will be installed Equipment The hardware delivered to the customer site that includes the Universal Storage Platform VM storage system components and rack s Location The specif...

Страница 15: ...articulate contamination Does the data center provide adequate acoustic insulation for operating the USP VM Is the customer supplied hardware for example connectors receptacles cables ready for the installation Physical Specifications and Requirements Does the location meet the requirements for service clearance and cable routing for example floor cutouts Does the location meet the requirements fo...

Страница 16: ...1 6 Planning for Installation Hitachi Universal Storage Platform VM Installation Planning Guide ...

Страница 17: ... Requirements Power Specifications and Requirements Environmental Specifications and Requirements Operational Requirements NOTE The general information in this chapter is provided to assist in installation planning and may not be complete The installation and maintenance documents used by Hitachi Data Systems personnel for example the Maintenance Manual contain complete information including speci...

Страница 18: ...ks Delivery Requirements The customer site must accommodate the delivery and movement of the equipment to the installation location in the data center This section provides delivery requirements for the following system configurations Universal Storage Platform VM installed in an HDS supplied rack Universal Storage Platform VM to be installed in a customer supplied rack Universal Storage Platform ...

Страница 19: ... be large enough to allow the delivered equipment USP VM components to be moved to the installation location Please contact your Hitachi Data Systems team for details on the shipping crate dimensions Weight The floors elevators stairs and ramps must be able to support the weight of the delivered equipment as it is moved to the installation location Spreader plates may be required to distribute the...

Страница 20: ...uipment using the factory packing Facilities Requirements The customer site must meet the following facilities requirements General The data center must be fully operational for example power air conditioning cabling fire protection system Floor The data center must have a raised tile floor ESD The data center must provide adequate protection from electrostatic discharge ESD Electrical interferenc...

Страница 21: ...mer Supplied Rack on page 2 12 HDS Supplied Rack Figure 2 1 shows a physical overview of the Universal Storage Platform VM in the HDS supplied racks The physical specifications and requirements for this configuration of the Universal Storage Platform VM include Dimensions and Weight Service Clearance Floor Cutout and Floor Load Rating Figure 2 1 Physical Overview of the Universal Storage Platform ...

Страница 22: ...configuration with the HDS supplied rack Figure 2 3 on page 2 7 shows the dimensions of the twin rack configuration with the HDS supplied rack Table 2 2 on page 2 8 lists the dimensions and weight specifications for the Universal Storage Platform VM components Figure 2 2 Physical Dimensions Single Rack Configuration REAR VIEW FRONT VIEW 2001 mm TOP VIEW 601 mm 1046 mm ...

Страница 23: ...nstallation Requirements 2 7 Hitachi Universal Storage Platform VM Installation Planning Guide Figure 2 3 Physical Dimensions Twin Rack Configuration FRONT VIEW TOP VIEW 2001 mm 601 mm 601 mm 1046 mm TBD ...

Страница 24: ...DKC F615I PHEC 2 5 DKC F615I UC0 3 2 DKC F615I UC1 2 1 DKC F615I EXC0 6 2 DKC F615I SX 1 2 DKC F615I S4GQ 0 08 DKC F615I DKA 2 6 DKC F615I EDKA 2 6 DKC F615I CX 2 2 DKC F615I C4G 0 08 DKC F615I C8G 0 08 DKC F615I C16G 0 08 DKC F615I 8S 2 7 DKC F615I 8MFS 3 0 DKC F615I 8MFL 3 0 DKC F615I 8FS 2 8 DKC F615I 16FS 3 0 DKC F615I 1FL 0 02 DKC F615I 1FS 0 02 DKC F615I SVP 4 1 DKC F615I SVPV 4 1 DKC F615I ...

Страница 25: ...n Two racks Table 2 5 on page 2 11 shows the service clearance and floor cutout requirements for the twin rack configuration Table 2 4 on page 2 12 shows the floor load rating and clearance requirements for this configuration Figure 2 4 Service Clearance and Floor Cutouts Single Rack DKC F605I 200S1 0 5 Table 2 2 Component Specifications Weight and Dimension Model Number Weight kg Dimension mm Wid...

Страница 26: ... 0 2 C 0 4 C 0 6 C 1 0 500 102 4 0 2 0 2 0 2 0 2 0 2 450 92 2 0 2 0 2 0 2 0 2 0 2 400 81 9 0 2 0 2 0 2 0 2 0 2 350 71 7 0 3 0 2 0 2 0 2 0 2 300 61 4 0 6 0 4 0 3 0 2 0 2 NOTE For safe and efficient maintenance operations clearance c should be made as large as possible Actual clearances for installation should be determined after consulting with the site facilities manager as clearances can vary dep...

Страница 27: ...5 65 835 655 63 90 61 5 74 457 482 585 Floor cutout area for cables Caster Screw jack Service clearance G Grid panel over 450mm x 450mm 1 215 150 195 215 G 482 585 DKC615 457 74 61 5 65 125 1100 150 655 835 1050 3250 90 63 1100 c 1 10 2 1050 575 601 Rear Front DKC515 200 or more 565 1 The proper side clearance dimensions should be secured corresponding to the 19 inch rack specifications ...

Страница 28: ...al positioning of the rail kits with the 3U rail kits shown in blue and the 2U rail kits shown in orange Figure 2 7 on page 2 14 shows the rail kit alignment and spacing The SVP Battery Backup Chassis obtains its power from the Control Frame and must be installed directly above the Control Frame Table 2 4 Floor Load Rating and Clearances Two Racks Floor Load Rating kg m2 lb ft 2 Required Clearance...

Страница 29: ...lower portion of the disk chassis and the second kit will support the upper portion of the disk chassis Additional SVP Battery Backup Chassis Requires one 2U rail kit product code 7846417 Control Frame Referred to as a Disk Controller 10U Add SVP Battery Backup Chassis 2U Lower portion of Disk Chassis Referredto as a HDD Box 6U Upper portion of Disk Chassis Referredto as a HDD Box 6U Lower portion...

Страница 30: ...not include this chassis leave a 2U space vacant above the control frame to allow for the installation of the chassis in the future This chassis is required when one or both of the following conditions are met System is equipped with 80 GB or more of cache memory In this instance an additional battery will be installed within the chassis The secondary back up service processor SVP will be installe...

Страница 31: ...n process and must not interfere with any lift device that may be used during the installation In addition this front door must have more than 50 perforation to allow sufficient air flow input Rear Door Required Must have more than 50 perforation to allow sufficient air flow output Must be able to open greater than 90 degrees to provide adequate access Minimum distance between components and nearb...

Страница 32: ...wer specifications for the Universal Storage Platform VM including inrush current leakage current input current and steady current Figure 2 8 on page 2 17 shows the locations of the power supplies 1 This is the maximum current when there is one AC input power line nonredundant configuration 2 This is the maximum current when there are two AC input power lines redundant configuration Table 2 6 Curr...

Страница 33: ...si s CB CB CB CB CB CB CB CB PDU PDU PDU P DU Secondary Rack 30A Breaker 30A Breaker 30A Brea ker 30A Breaker Maximum Configuration Control Frame Additional SVP Battery Backup Chassis and four Disk Chassis Each rack contains four Power Distribution Units PDU Each PDU includes two groups of four receptacles IEC 320 C13 Each receptacle group has its own Circuit Breaker CB 16Amp 20 Amp Trip For syste...

Страница 34: ...S21 PS22 CL1 CL2 PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R0 Disk Chassi s SBX Chassis DKC Control Frame PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R1 Disk Chassi s CB CB CB CB CB CB CB CB PDU PDU PDU PDU Primary Rack 30A Breaker 30A Breaker 30A Brea ker 30A Breaker Power Cables Power Cables Primary Rack with one Disk Chassis installed Primary Rack with two Disk Chassis installed Regardless of...

Страница 35: ...installed PS00 PS01 x 15 PS10 PS11 x 15 PS20 PS21 x 15 PS30 PS31 x 15 DKU R2 Disk Chass is CB CB CB CB PDU PDU Secondary Rack 30A Breaker 30A Breaker Power Cable Power Cable When a second Disk Chassis is added into the Secondary Rack two additional 30A breakers are required Secondary Rack Configurations Including one or two Disk Chassis PS Power Supply CL1 Cluster 1 CL2 Cluster 2 CB Circuit Breake...

Страница 36: ... Referred to as a Diskless Hitachi Universal Storage Platform VM Primary Rack Configuration Control Frame Additional SVP Battery Backup Chassis and no Disk Chassis PS Power Supply CL1 Cluster 1 CL2 Cluster 2 CB Circuit Breaker SBX Chassis Additional SVP Battery Backup Chassis Power obtained from DKC Control Frame DKC Control Frame CB CB PDU CB CB PDU Connecting to 30A breaker is not required when ...

Страница 37: ...e power facility Power connection through UPS Figure 2 14 shows the power connections when half of the AC input lines are connected to an uninterruptible power supply UPS and the other half of the AC input lines are connected directly to the power facility CAUTION When installing the USP VM connect the AC cables between the PDUs and PDPs correctly Otherwise a system failure occurs when one of the ...

Страница 38: ...two PDUs will continue to receive power and will supply sufficient power to all components in the rack The power to the SBX Chassis is supplied from the Control Frame PS11 PS12 PS21 PS22 CL1 CL2 PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R0 Disk Chass is SBX Chassis DKC Control Frame PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R1 Disk Chass is CB CB CB CB CB CB CB CB PDU PDU PDU PDU Primary Rack ...

Страница 39: ...his will eliminate the power redundancy configuration and will result in the Control Frame losing all power if one PDU fails PS11 PS12 PS21 PS22 CL1 CL2 PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R0 Disk Chassis SBX Chassis DKC Control Frame PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R1 Disk Chassis CB CB CB CB CB CB CB CB PDU PDU PDU PDU Primary Rack Duplex Structure Connected to same PDP PDP1 ...

Страница 40: ... Primary Rack PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R2 Dis k Chas sis PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R3 Dis k Chas sis CB CB CB CB CB CB CB CB PDU PDU PDU PDU Secondary Rack PDP2 PDP1 To UPS To UPS To PDP To PDP AC Input Line Branch Distribution Box UPS2 UPS1 PDP Power Distribution Panel For the AC Input power connect one pair of PDUs from each rack to the UPS and the other pair...

Страница 41: ...talling the Universal Storage Platform VM storage system in a customer supplied rack Figure 2 15 Maximum configuration control frame additional SVP battery backup chassis and four disk chassis Figure 2 16 Primary rack configuration control frame additional SVP battery backup chassis and up to two disk chassis Figure 2 17 Primary rack configuration control frame additional SVP battery backup chassi...

Страница 42: ... x 15 PS30 PS31 x 15 DKU R3 Disk Chassi s CB CB CB CB CB CB CB CB PDU PDU PDU PDU Secondary Rack 30A Breaker 30A Breaker 30A Brea ker 30A Breaker Maximum Configuration Control Frame Additional SVP Battery Backup Chassis and four Disk Chassis Each rack contains four Power Distribution Units PDU Each PDU includes two groups of four receptacles IEC 320 C13 Each receptacle group has its own Circuit Br...

Страница 43: ...ontrol Frame PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R1 Disk Chassis CB CB CB CB CB CB CB CB PDU PDU PDU PDU Primary Rack 30A Breaker 30A Breaker 30A Brea ker 30A Breaker Power Cables Power Cables Primary Rack with one Disk Chassis installed Primary Rack with two Disk Chassis installed Regardless of the number of Disk Chassis installed the number of 30A breakers required for the Primary Cabine...

Страница 44: ...ame CB CB CB CB PDU PDU Primary Rack 30 A Bre aker 30A Brea ker Power Cable Power Cable Primary Rack with no Disk Chassis installed Referred to as a Diskless Hitachi Universal Storage Platform VM Primary Rack Configuration Control Frame Additional SVP Battery Backup Chassis and no Disk Chassis PS Power Supply CL1 Cluster 1 CL2 Cluster 2 CB Circuit Breaker SBX Chassis Additional SVP Battery Backup ...

Страница 45: ...er Cables Power Cables Secondary Rack with one Disk Chassis installed Secondary Rack with two Disk Chassis installed PS00 PS01 x 15 PS10 PS11 x 15 PS20 PS21 x 15 PS30 PS31 x 15 DKU R2 Disk Chass is CB CB CB CB PDU PDU Secondary Rack 30A Breaker 30A Breaker Power Cable Power Cable When a second Disk Chassis is added into the Secondary Rack two additional 30A breakers are required Secondary Rack Con...

Страница 46: ...PDP fails two PDUs will continue to receive power and will supply sufficient power to all components in the rack The power to the SBX Chassis is supplied from the Control Frame PS11 PS12 PS21 PS22 CL1 CL2 PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R0 Disk Chass is SBX Chassis DKC Control Frame PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R1 Disk Chass is CB CB CB CB CB CB CB CB PDU PDU PDU PDU Pri...

Страница 47: ...g this will eliminate the power redundancy configuration and will result in the Control Frame losing all power if one PDU fails PS11 PS12 PS21 PS22 CL1 CL2 PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R0 Disk Chassis SBX Chassis DKC Control Frame PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R1 Disk Chassis CB CB CB CB CB CB CB CB PDU PDU PDU PDU Primary Rack Duplex Structure Connected to same PDP PD...

Страница 48: ...DU PDU Primary Rack PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R2 Dis k Chas sis PS00 PS01 PS10 PS11 PS20 PS21 PS30 PS31 DKU R3 Dis k Chas sis CB CB CB CB CB CB CB CB PDU PDU PDU PDU Secondary Rack PDP2 PDP1 To UPS To UPS To PDP To PDP AC Input Line Branch Distribution Box UPS2 UPS1 PDP Power Distribution Panel For the AC Input power connect one pair of PDUs from each rack to the UPS and the othe...

Страница 49: ... 2 23 shows a diagram of this PDU with specifications This PDU can be purchased from Hitachi Data Systems by referencing product code 9960624 Customer supplied PDUs must meet or exceed these specifications If the option for Hitachi Data Systems PDUs is selected the appropriate type and quantity of PDU kits based on the system configuration are supplied Customer supplied PDUs must meet the specific...

Страница 50: ...2 34 Installation Requirements Hitachi Universal Storage Platform VM Installation Planning Guide Figure 2 22 PDU for the Americas ...

Страница 51: ...Installation Requirements 2 35 Hitachi Universal Storage Platform VM Installation Planning Guide Figure 2 23 PDU for Europe Middle East Africa and Asia Pacific ...

Страница 52: ...abling techniques PDUs must be installed so their receptacles face the rear of the rack This positioning is required to enable the power cords to be successfully attached Figure 2 24 shows correctly positioned PDUs Figure 2 24 Correct Positioning of PDUs Upper portion of Disk Chassis Partial view Lower portion of Disk Chassis 2Uspace left available for installation of an Additional SVP Battery Bac...

Страница 53: ...E 1 The requirements for operating condition should be satisfied before the storage system is powered on Do not exceed a maximum temperature of 90 F 32 C at the air intakes 2 Non operating condition includes both packing and unpacking conditions unless otherwise specified 3 For shipping storage pack the equipment using the factory packing 4 No condensation in or around the drive should be observed...

Страница 54: ...2 0 233 0 24 5 0 DKC F615I SBX 0 012 0 013 1 3 DKC F615I LGAB 0 015 DKC F615I PLUC DKC F615I PHUC DKC F615I PLEC DKC F615I PHEC DKC F615I UC0 DKC F615I UC1 DKC F615I EXC0 DKC F615I SX 0 005 0 005 DKC F615I S4GQ 0 013 0 013 DKC F615I DKA 0 097 0 100 DKC F615I EDKA 0 099 0 102 DKC F615I CX 0 005 0 005 DKC F615I C4G 0 015 0 015 DKC F615I C8G 0 019 0 020 DKC F615I C16G 0 019 0 020 DKC F615I 8S 0 146 0...

Страница 55: ...01 Test Method for Random Vibration Testing of Shipping Containers 4 See ASTM D5277 92 Standard Test Methods for Performing Programmed Horizontal Impacts Using an Inclined Impact Tester 5 See ASTM D6055 96 Standard Test Methods for Mechanical Handling of Unitized Loads and Large Shipping Cases and Crates DKC F615I 300KM 0 020 0 021 DKC F615I 400JS 0 020 0 021 DKC F615I 1R0HS 0 019 0 020 DKC F615I ...

Страница 56: ...gator communicates directly with the Universal Storage Platform VM via LAN to obtain system configuration and status information and send user requested commands to the storage system Storage Navigator serves as the integrated interface for all Resource Manager components Cable length for front end directors Table 2 12 lists the cable length requirements for the front end directors FEDs in the Uni...

Страница 57: ...kW Inches in 2 54000508 Centimeters cm Feet ft 0 3048006096 Meters m Square feet ft 2 0 09290341 Square meters m2 Cubic feet per minute ft 3 min 0 028317016 Cubic meters per minute m3 min Pound lb 0 4535924277 Kilogram kg Kilocalories kcal 3 96832 British thermal units BTU Kilocalories kcal 1 16279 x 10 3 Kilowatts kW Kilowatts kW 3412 08 British thermal units BTU Kilowatts kW 859 828 Kilocalories...

Страница 58: ...elsius C First multiply then add 32 F C x 1 8 32 Degrees Fahrenheit F Degrees Fahrenheit per hour F hour 0 555555 Degrees Celsius per hour C hour Degrees Celsius per hour C hour 1 8 Degrees Fahrenheit per hour F hour Table A 1 Conversions for Metric and Standard U S Units of Measure From Multiply By To Get ...

Страница 59: ...tor dB A decibel A weighted DKA disk adapter another name for back end director DKC disk controller DKU disk unit ESD electrostatic discharge FCC Federal Communications Commission FED front end director g acceleration of gravity 9 8 m s2 unit used for vibration and shock GB gigabyte see Convention for Storage Capacity Values HDS Hitachi Data Systems Hz Hertz IEC International Electrotechnical Comm...

Страница 60: ...second NEMA National Electrical Manufacturers Association PB petabyte see Convention for Storage Capacity Values PDP power distribution panel PDU power distribution unit PS power supply sec second SIM service information message SVP service processor SVPV Service processor for Microsoft Vista applications SW switch short wavelength TB terabyte see Convention for Storage Capacity Values UPS uninter...

Страница 61: ...Hitachi Universal Storage Platform VM Installation Planning Guide ...

Страница 62: ...95050 2627 U S A Phone 1 408 970 1000 www hds com info hds com Asia Pacific and Americas 750 Central Expressway Santa Clara California 95050 2627 U S A Phone 1 408 970 1000 info hds com Europe Headquarters Sefton Park Stoke Poges Buckinghamshire SL2 4HD United Kingdom Phone 44 0 1753 618000 info eu hds com ...

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