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Enclosure Features

The HP StorageWorks Modular Smart Array 20 (MSA20) is an Ultra320 host
connect disk drive enclosure that uses Serial ATA (SATA) drives. The MSA20
delivers a low-cost, high-capacity solution that is suitable for minimum I/O workload
situations such as storing reference data, archiving files, and performing disk-to-disk
backups.

You can connect the MSA20 to the external port of any sixth-generation Smart Array
controller or to an MSA1500 controller shelf (MSA1500 cs). These external
controllers enable you to configure the SATA drives in the MSA20 with RAID levels
of 0, 1+0, 5, or ADG.

The MSA20 also has an internal controller module with a battery-backed write cache.
The cache allows data to be transferred rapidly to the SATA drives, and the battery-
backed feature protects data held in the cache for up to four days if power to the
enclosure is interrupted.

The enclosure components incorporate some important safety and redundancy
features. For example, if one power supply unit fails, the remaining functional unit
can temporarily provide enough power for a fully equipped enclosure. Similarly, if
one fan fails, the remaining fan runs at a faster speed, and can temporarily provide
enough cooling for a fully equipped enclosure. In either case, replace the failed
component as soon as possible to maximize the life expectancy of the remaining
power supply or fan.

For more information about features of the MSA20 enclosure, refer to the HP
website,

http://www.hp.com

.

HP StorageWorks Modular Smart Array 20 User Guide

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Содержание 20 MODULAR SMART ARRAY

Страница 1: ...HP StorageWorks Modular Smart Array 20 User Guide March 2004 First Edition Part Number 347918 001 ...

Страница 2: ... and services are set forth in the express warranty statements accompanying such products and services Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein HP StorageWorks Modular Smart Array 20 User Guide March 2004 First Edition Part Number 347918 001 ...

Страница 3: ...y Information vii Symbols on Equipment vii Symbols in Text ix Getting Help ix Technical Support ix HP Website x Authorized Reseller x Reader s Comments x Chapter 1 Enclosure Features Chapter 2 Identifying the Enclosure Components Enclosure 2 1 Power Supply Unit 2 3 Controller Module 2 4 Drive and Drive Blank 2 5 Fan Assembly 2 7 Chapter 3 Installing the Enclosure in a Rack Preparing the Rack 3 1 ...

Страница 4: ... Commission Notice A 1 Class A Equipment A 2 Class B Equipment A 2 Declaration of Conformity for Products Marked with the FCC Logo United States Only A 3 Modifications A 3 Cables A 3 Canadian Notice Avis Canadien A 4 Class A Equipment A 4 Class B Equipment A 4 European Union Notice A 4 Japanese Notice A 5 Korean Notices A 5 BSMI Notice A 6 Battery Replacement Notice A 6 Appendix B Electrostatic Di...

Страница 5: ...Contents Appendix C Specifications Physical Specifications C 1 Power Specifications C 2 Environmental Specifications C 2 Index HP StorageWorks Modular Smart Array 20 User Guide v ...

Страница 6: ......

Страница 7: ...zards in products with hazardous energy levels Important Safety Information Before installing this product read the Important Safety Information document included with the server Symbols on Equipment The following symbols may be placed on equipment to indicate the presence of potentially hazardous conditions WARNING This symbol in conjunction with any of the following symbols indicates the presenc...

Страница 8: ...t plug telephone or telecommunications connectors into this receptacle This symbol indicates the presence of a hot surface or hot component If this surface is contacted the potential for injury exists WARNING To reduce the risk of injury from a hot component allow the surface to cool before touching These symbols on power supplies or systems indicate that the equipment is supplied by multiple sour...

Страница 9: ...lement important points of the main text Getting Help If you have a problem and have exhausted the information in this guide you can get further information and other help in the following locations Technical Support In North America call the HP Technical Support Phone Center at 1 800 652 6672 This service is available 24 hours a day 7 days a week For continuous quality improvement calls may be re...

Страница 10: ...rivers and flash ROM images You can access the HP website at http www hp com Authorized Reseller For the name of your nearest authorized reseller In the United States call 1 800 345 1518 In Canada call 1 800 263 5868 Elsewhere see the HP website for locations and telephone numbers Reader s Comments HP welcomes your comments on this guide Send your comments and suggestions to ServerDocumentation hp...

Страница 11: ...backed write cache The cache allows data to be transferred rapidly to the SATA drives and the battery backed feature protects data held in the cache for up to four days if power to the enclosure is interrupted The enclosure components incorporate some important safety and redundancy features For example if one power supply unit fails the remaining functional unit can temporarily provide enough pow...

Страница 12: ...1 Mounting bracket covers bezel ears 2 Drive blank in bay 3 3 Drive blank in bay 4 Note The enclosure is shipped with 10 drive blanks Insert blanks into unused drive bays in a working enclosure so that the correct enclosure airflow is maintained HP StorageWorks Modular Smart Array 20 User Guide 2 1 ...

Страница 13: ... to indicate that the enclosure monitor Global Service Indicator or GSI is functional 5 Enclosure fault LED Glows amber when any other LED in the enclosure is amber if the GSI is functional 6 Enclosure power button 7 Power supply units 8 Fan assemblies 9 Controller module WARNING Do not use the handles on the power supply units to lift or hold the enclosure These handles are designed only for hold...

Страница 14: ...se lever 4 Bicolor status LED green or amber WARNING Do not use the handles on the power supply units to lift or hold the enclosure These handles are designed only for holding the power supply units or removing them from the enclosure not for supporting the weight of the enclosure HP StorageWorks Modular Smart Array 20 User Guide 2 3 ...

Страница 15: ... 2 Finger hook 3 Bicolor status LED green or amber 4 VHDCI connector for connecting to a sixth generation Smart Array controller or an MSA1500 cs enclosure 5 Service port for HP service technicians only 6 Release lever 7 Controller cache lower cache battery just visible 2 4 HP StorageWorks Modular Smart Array 20 User Guide ...

Страница 16: ... 7 Release latch The blue ID LED illuminates when you press the unit identification button on the rear of the enclosure This LED also illuminates when the drive or an array containing the drive is selected in a management application such as the HP Array Configuration Utility ACU The amber LED on a drive illuminates when the drive has failed or is predicted to fail in the near future HP StorageWor...

Страница 17: ... the risk of data loss do not replace the drive until the expansion or migration is complete Flashing regularly 1 Hz Off The drive is rebuilding or it is part of an array that is undergoing capacity expansion or stripe migration Flashing irregularly Amber flashing regularly 1 Hz The drive is active but a predictive failure alert has been received for this drive Replace the drive as soon as possibl...

Страница 18: ...Identifying the Enclosure Components HP StorageWorks Modular Smart Array 20 User Guide 2 7 Fan Assembly Figure 2 6 Fan assembly Item Description 1 Bicolor status LED green or amber 2 Release lever ...

Страница 19: ...rocess reinstalling the components and connecting the power Preparing the Rack The racks that HP supports for use with the MSA20 enclosure are the HP System E racks and the HP 10000 Series racks Other racks might also be suitable but have not been tested with the MSA20 For information about setting up a rack including appropriate warnings and cautions refer to the relevant rack user guide Before m...

Страница 20: ...ting the Enclosure in the Rack 9 kg 20 lb empty 24 kg 53 lb full WARNING Use at least two people to move or install the enclosure For greater safety and easier installation reduce the enclosure weight by removing the disk drives power supply units controller module and fan assemblies Each enclosure requires a vertical rack space of 2U equivalent to 89 mm or 3 5 inches 1 Use the rack mounting templ...

Страница 21: ...mation on the back of the template as a guide to the required location of the locking latches in this case 2 If the holes in the rack uprights are round instead of square remove the standard pins from the rails and replace them with the round hole pins provided in the rack mounting hardware kit WARNING The pins in the rails are load bearing Do not remove the pins except to replace them with the pi...

Страница 22: ... front of the rack until the locking latch engages with the marked hole in the front rack upright 5 Extend the back end of the rail toward the inside rear of the rack until the locking latch engages with the marked hole in the rear rack upright 3 4 HP StorageWorks Modular Smart Array 20 User Guide ...

Страница 23: ...t on the shipping bracket 1 and move the bracket to the rearmost position on the rail 2 7 Repeat steps 4 through 6 for the left rack rail 8 Align the enclosure with the rails and slide it into the rack HP StorageWorks Modular Smart Array 20 User Guide 3 5 ...

Страница 24: ...ure the enclosure to the rack 2 10 Replace the mounting bracket covers 11 If you intend to move the rack while the enclosure is installed adjust the shipping brackets on each rail to secure the enclosure to the rack a Loosen the shipping bracket locknut 1 3 6 HP StorageWorks Modular Smart Array 20 User Guide ...

Страница 25: ...nnector of a sixth generation Smart Array controller in a server 3 Connect the AC input socket of each power supply unit to separate AC power sources 4 Press the enclosure power button on the rear of the unit 5 Confirm that the enclosure components are all functioning normally by observing the condition of their status LEDs which should all be green If the amber LED on any component is illuminated...

Страница 26: ...a Rack 3 8 HP StorageWorks Modular Smart Array 20 User Guide In the case of a drive it is predicted to fail in the near future assuming that it is seated properly in the enclosure In the case of a power supply it is not plugged in ...

Страница 27: ...s on the external sixth generation Smart Array controller The latest version of ACU is downloadable from the HP website http www hp com For further information about using ACU or for conceptual information about arrays logical drives and fault tolerance methods refer to the HP Array Configuration Utility User Guide This document is available on the Documentation CD provided in the MSA20 kit For fu...

Страница 28: ...nclosure CAUTION Be careful when replacing a drive The drives in the enclosure are fragile Replacement Procedures The following general steps apply to all components Detailed procedures for removing individual components are given in the appropriate section of this chapter CAUTION Before replacing a component follow the precautions described in Appendix B to minimize the possibility of damage from...

Страница 29: ... is disconnected from the backplane connector CAUTION A drive with a rapidly spinning disk can be difficult to hold securely To decrease the chance of dropping the drive do not remove it completely from the enclosure until the disk has stopped rotating This usually takes a few seconds 3 When the disk is no longer spinning remove the drive from the enclosure Installing a Drive Blank Insert the driv...

Страница 30: ...osure 3 Confirm that the fan starts operating immediately and that the status LED is illuminated green Power Supply Unit 1 Disconnect the AC power cord from the defective power supply unit 2 Squeeze the handle and the release lever together while pulling the defective power supply unit out of the enclosure 3 Insert the replacement power supply unit into the empty bay until it is firmly seated in t...

Страница 31: ... WARNING There is a risk of explosion fire or personal injury if battery packs are not properly handled Refer to the Battery Replacement Notice in Appendix A before installing or removing a battery pack IMPORTANT After installing a new battery pack and replacing the controller module in the enclosure it may take up to 45 minutes for the battery to recharge and the battery backed write cache to bec...

Страница 32: ...unit push the two plastic retainer tabs upward through the slots in the battery case 1 5 Tilt the battery pack slightly away from the battery case 2 6 Press down on the battery pack to expel it from the battery case 3 To install the replacement upper battery pack reverse the previous steps HP StorageWorks Modular Smart Array 20 User Guide 5 5 ...

Страница 33: ... unit unless you must also replace the upper battery pack 2 Remove the cache board a Open the ejector levers on each side of the memory module socket 1 b Pull the cache board out of the socket 2 3 Push the plastic retainer tabs through to the other side of the cache board 3 4 Lift the battery pack off the cache board To install the replacement lower battery pack reverse the previous steps ...

Страница 34: ...that may reasonably be expected to be installed in a business or commercial environment Class B devices are those that may reasonably be expected to be installed in a residential environment for example personal computers The FCC requires devices in both classes to bear a label indicating the interference potential of the device as well as additional operating instructions for the user The FCC rat...

Страница 35: ...nt to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occu...

Страница 36: ...s by mail or telephone Hewlett Packard Company P O Box 692000 Mail Stop 530113 Houston Texas 77269 2000 1 800 652 6672 For continuous quality improvement calls may be recorded or monitored For questions regarding this FCC declaration contact us by mail or telephone Hewlett Packard Company P O Box 692000 Mail Stop 510101 Houston Texas 77269 2000 1 281 514 3333 To identify this product refer to the ...

Страница 37: ...ecte toutes les exigences du Règlement sur le matériel brouilleur du Canada European Union Notice Products with the CE Marking comply with both the EMC Directive 89 336 EEC and the Low Voltage Directive 73 23 EEC issued by the Commission of the European Community Compliance with these directives implies conformity to the following European Norms the equivalent international standards are in parent...

Страница 38: ...Regulatory Compliance Notices Japanese Notice Korean Notices HP StorageWorks Modular Smart Array 20 User Guide A 5 ...

Страница 39: ...e disassemble crush or puncture the battery pack Do not short the external contacts Replace the battery pack only with the designated HP spare Battery disposal should comply with local regulations Alternatively use established parts return methods to return the battery pack to HP for disposal Batteries battery packs and accumulators should not be disposed of together with the general household was...

Страница 40: ... when setting up the system or handling parts Avoid hand contact by transporting and storing products in static safe containers Keep electrostatic sensitive parts in their containers until they arrive at static free workstations Place parts on a grounded surface before removing them from their containers Avoid touching pins leads or circuitry Always be properly grounded when touching a static sens...

Страница 41: ... megohm 10 percent resistance in the ground cords To provide proper ground wear the strap snug against the skin Use heel straps toe straps or boot straps at standing workstations Wear the straps on both feet when standing on conductive floors or dissipating floor mats Use conductive field service tools Use a portable field service kit with a folding static dissipating work mat If you do not have a...

Страница 42: ...0 x 10 8 25 kg 55 lb empty 34 kg 75 lb with components Table C 2 Specifications of Components Dimensions Item International cm US in Weight Fan assembly 26 8 x 6 0 x 6 0 10 6 x 2 4 x 2 4 0 50 kg 1 10 lb Disk drive in carrier 18 5 x 11 0 x 2 6 7 3 x 4 3 x 1 0 0 75 kg 1 65 lb Controller module 32 6 x 7 9 x 7 1 12 8 x 3 1 x 2 8 1 4 kg 3 0 lb Power supply unit 32 0 x 6 4 x 7 7 12 6 x 2 5 x 3 0 1 80 kg...

Страница 43: ...o power supplies Standby current 0 21 A at 240 V 60 Hz 0 15 A at 120 V 60 Hz Environmental Specifications Table C 4 Environmental Specifications Operating Shipping or Storage Ambient temperature 10 to 35 C 50 to 95 F with an average change of less than 1 C per hour and a step change of less than 3 C per hour 40 to 66 C 40 to 150 F Relative humidity noncondensing 40 to 60 with a step change of less...

Страница 44: ...y 4 1 controller module description of 2 4 location of 2 2 replacing 5 3 specifications of C 1 D Declaration of Conformity A 3 dimensions of components C 1 of enclosure C 1 disk drive description of 2 5 replacing 5 2 specifications of C 1 drive blank description of 2 5 replacing 5 2 drive carrier description of 2 5 drive status LEDs 2 6 E electrostatic damage preventing B 1 enclosure dimensions of...

Страница 45: ...ing methods B 2 H hard drive LEDs interpreting 2 6 heat dissipation C 2 HP website x humidity of environment C 2 L LEDs on hard drive 2 6 O operating environment C 2 ORCA Option ROM Configuration for Arrays 4 1 P particulate matter in air C 2 relative humidity C 2 S safety features 1 1 shipping bracket location and use of 3 6 storing the enclosure C 2 symbols in text ix symbols on equipment vii T ...

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