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Compaq 4200 Family - page 1
F irst Edition (J uly 1999) P art Number: EK–SW2ZS– UG. A01 / 148451–001 Compaq Compute r Corporation Enc losure 4200 F amily L VD Disk Enc losures User Guide ...
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Compaq 4200 Family - page 2
Notice While Com paq Comp uter Corporatio n beli ev es the info rmation in clude d in this ma nual is correct a s of the date o f publica tion, it is subject to change without n otice. Co mpaq make s no repre sentations th at the intercon nectio n of it s produc ts in the manner describe d in th is document will no t infringe ex isting or futu re p ...
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Compaq 4200 Family - page 3
Contents About This Guide Chapter 1 Introducing the Enclosure Disk Enclosure Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2 SCSI Buses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3 High Av ...
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Compaq 4200 Family - page 4
iv Enc losure 4200 Family L VD Disk Encl osures Users Guide Single-Bus Mod ule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2 SCSI Bus Conn ectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3 SCSI Bus ...
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Compaq 4200 Family - page 5
Contents v Environmental Specif ications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B– 4 Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–5 Glossary Index ...
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Compaq 4200 Family - page 6
List of Figures Figure 1–1. Disk En closure (Front View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1 Figure 1–2. Disk En closure (Rear View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2 Figure 1–3. Front Mo unted Elements . . . . . . . . . . . . . . . . . . ...
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Compaq 4200 Family - page 7
List of T ables Table 1 Documen tation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi ii Table 2 Related Pub lications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv Table 1–1 C RU Replacement Methods . . . . . . . . . . . . . . . ...
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Compaq 4200 Family - page 8
About This Guide Intended Au dience This publication is design ed for use b y Compaq Stor ageW orks users who are responsible for inst alling an d maint aining t he Mode l 4214R (rack) and 4214T (t ow er) Ultr a2 SCSI low v oltage dif ferential (L VD) disk enclosures. How this Guide is Arranged This manual discusses the product features and operati ...
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Compaq 4200 Family - page 9
xii Enc losure 4200 Family L VD Disk Enclosur es Users Guide Chapter 4, “Disk Drives” This chapter describes the disk d ri ves, operatio n, and status reporting. Chapter 5, “Enc losure Power and Cooling” The chapter descri bes the po wer supply and f an operati on and st atus re portin g. Chapter 6, “Replacing CRUs ” This chapter descri ...
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Compaq 4200 Family - page 10
xiii Documentation Conventions The documenta tion conventio ns used in th is publicat ion are sh own in T able 1. T able 1 Docu mentation Convention s Symbol Description Boldface type Boldface typ e indica tes the f irst ins tance of term s being def ined in th e text, the glossary , or both. italic ty pe Italic type indicat es one of t he follo wi ...
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Compaq 4200 Family - page 11
xiv Enc losure 4200 Family L V D Disk E nclosu res Users Guide I/O module L ED label Po w e r S ta tu s ( O N ) or E MU Locate (F LASHING ) LED (green) I/O module l abel Ultr a2 SCSI , Single Bus, L VD inpu t conne ctor Light emittin g diode (LED ) is O FF . LE D is F LASHING . LED is O N . T able 1 Documentation Conve ntions (Continued) Symbol Des ...
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Compaq 4200 Family - page 12
xv Related Documents T able 2 lists publication s that contain ad dit ional informatio n relev ant to the L VD disk enclosure prod ucts. T able 2 Related Publications StorageWorks Publication Title Part Numb er Disk Enc losure RETM A Rack Mo unting Kit Installat ion Card 127430-001 Disk Enc losure RETM A Rack Mo unting T emplate 102943-001 Envir on ...
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Compaq 4200 Family - page 13
Chapter 1 Introducing the Enc losure This c ha pter desc ribes of the S tora geW ork s Encl osur e 420 0 family of low volt age differential ( L VD ) disk enclosur es (see Figure 1–1 a nd Figure 1–2). These enclo sures support Wide-U ltr a and Wide - U lt ra 2 s mall computer system in terface ( SCS I ) protocol s. The inte rnal b u s supports ...
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Compaq 4200 Family - page 14
1–2 Enc losure 4200 Family L V D Disk Enclosu res User Guide Figu re 1–2. Disk Enclosure (Rear V iew) Disk Enc losure F ea tures The Model 4214 enclosure s upports up to fourteen, 1 -inch hi gh, 3.5- inch f o rm factor hard disk drives . This enclosur e is a v ailable in either a rack mountable version (421 4R) or in a tower (4214 T). A rack (c ...
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Compaq 4200 Family - page 15
Introduc ing the En cl osure 1–3 SCSI Buses The enclosur e supports only W ide-Ultra2 SC SI, wide (1 6-bit) , internal L VD buses. Depending on the h ost interface, th e e xternal SCSI b us, the b us from the I/O module to the host can be either W ide-Ultra or W ide-Ultra2, L VD or SE. The SCSI bus type deter mines the length of thi s bus, and th ...
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Compaq 4200 Family - page 16
1–4 Enc losure 4200 Family L V D Disk Enclosu res User Guide Status Monitoring and Display The major status monitorin g capabilities of these enclosures include: ■ Displaying the enclosure status on the enclosur e LEDs ■ Displaying the element status on the po wer supply , EMU, dri v e, and I/O module LEDs ■ Detecting the ins tallati on of ...
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Compaq 4200 Family - page 17
Introduc ing the En cl osure 1–5 Figure 1–3. Front Mounted Elemen ts The I/O modu le, po wer supplies, fan s, EMU, and cables mo unt in th e rear of the enclosur e (see Figu re 1–4). Figu re 1–4. Rear Mounted Elements EMU Fan 1 Power Supply Bay 1, or Fa n Mount ing A ssemb ly 1 1. In a singl e power supply co nfig uratio n, th e fan mounts ...
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Compaq 4200 Family - page 18
1–6 Enc losure 4200 Family L V D Disk Enclosu res User Guide Major Elements The elements each enclosure requires for proper operation include: ■ An EMU ■ T wo power su pp lies, or 1 po wer supp ly and 1 fan mounting ass embly ■ Tw o F a n s ■ An I/O module ■ A disk dri ve or disk dri ve blank in each bay Element Functions A full des cri ...
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Compaq 4200 Family - page 19
Introduc ing the En cl osure 1–7 Fan Hot-plugg able I/O Modu le Hot-pl uggab le Power Supply –Dua l Hot-pl uggab le Power Supply –Sing le No Power A p plie d 1 SCSI Bus Cables Plugg able 1. In a single power supply configura tion, the en closure is disabled when the power supply f ail s. T able 1–1 CRU Replacem ent Methods (Continued) Eleme ...
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Compaq 4200 Family - page 20
Chapter 2 Starting the Enc losure W ith the enclosure installed in a rack or to wer it is necessary to: 1. Connect the SCSI b us cables. 2. Ap ply power . 3. V erify p roper operat ion. Connecting the SCSI Bus Cables Connecting the enclosur e to a host adapter or SC SI bus con troller is simply a matter of connecting cables to the I/O module. All I ...
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Compaq 4200 Family - page 21
2–2 Enc losure 4200 Family L V D Disk Enclosu res User Guide Figu re 2–1. Single Bus Cable Connection T able 2–1 lis ts th e host ar ray cont roller cables a v ailable. As for any S CSI b us, using t he shortest length cable possible enh ances performance. Primary host controll er connector T able 2–1 SCSI Bus Cables Description Leng th Par ...
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Compaq 4200 Family - page 22
Starti ng the En c losure 2–3 68-conductor SCSI cable with 1 High-De nsity straig ht plug connecto r with j ack screws 1 Vertical Offset VHDCI straight pl ug connector wit h jack screw s 1.8 3.7 6 12 110941-001 110941-002 1 1. One cable p rovided wit h eac h encl osu re. 2. Use only with Ultra2 SCSI L VD bus operating at spee ds of 8 0 Mb/sec or ...
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Compaq 4200 Family - page 23
2–4 Enc losure 4200 Family L V D Disk Enclosu res User Guide Applying P ower There are no disk enclosu re po wer con trol switches. Connecting an A C power cord fr om a po wer sou rce to the po wer supply i s all that is r equir ed. When a po w er supp ly has an A C input, it develops and distributes DC voltages within th e enclosure. V erifying ...
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Compaq 4200 Family - page 24
Starti ng the En c losure 2–5 NOTE: There are two differ ent drive display s for a properl y fu nctioning disk. Figu re 2–2. Fr ont Status LEDs Fi gure 2–3. Rear Stat us LEDs CXO6919A CXO6982A ...
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Compaq 4200 Family - page 25
Chapter 3 I/O Module This chapte r discu sses th e operation a nd functi on of t he L VD disk enclosur e I/O modul e (the “module”). Each enclosure req uires an I/O module for op eration with a wide (16-b it) controller SCSI bu s. The module is the CR U that connects the enclosure to the host controller throu gh a 68-pin, VHDCI conn ector and a ...
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Compaq 4200 Family - page 26
3–2 Enc losure 4200 Family L V D Disk Enclosu res User Guide Figu re 3–1. Single-Bus I/O Module Module P ower Protection A sensor on the +5 VDC line in the m odule detects overcurrent conditions. Sh ould this error occur , the sen sor disconnects the voltage from the module and the po wer LED is O FF (see Figure 3 –2). This disables the modu ...
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Compaq 4200 Family - page 27
I/O Module 3–3 SCSI Bus Connectors The 68-pin VHDCI con nector en ables yo u to co nf igure the enclosure as sing le-b us, single initiator subsys tem. SCSI Bus T erm ination A SCSI bus is def ined by two b us terminators. The ex te r n a l bu s has term inat ors o n the controlle r and o n the modu le. Each internal bus has a terminato r on the ...
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Compaq 4200 Family - page 28
3–4 Enc losure 4200 Family L V D Disk Enclosu res User Guide SCSI Address Map The module assigns a SCSI address to each dri ve bay in the enclosure using a SCSI address map. The acti ve map (s ee T able 3–2) is determined by a combination of: ■ Backplane ■ EMU ■ I/O modu le Each disk dri ve bay and each cont roller has a SCSI b us ID. The ...
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Compaq 4200 Family - page 29
Chapter 4 Disk Drives The enclosur e supports Com paq h ot -p lu gg abl e, W ide-Ultr a2 SCSI, L VD disk driv es . Th is chapter describes the disk d ri ve features, f unctions, and characteristics. The 14-disk en closure supports 1.0-inch , 3.5-in ch form facto r dri ves mounted in a carrier (see Figu re 4–2). CA UTION: Controlling airflow withi ...
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Compaq 4200 Family - page 30
4–2 Enc losure 4200 Family L V D Disk Enclosu res User Guide Status Reporting The three disk dr iv e status LEDs (see Figure 4–2) def ine the op erational status of each dri ve. T o determine the dri ve status you must observ e all three LEDs (see T able 4–1). Figu re 4–2. Disk Drive LEDs Display Disk Status The dri ves hav e two green and ...
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Compaq 4200 Family - page 31
Disk Drives 4–3 Operational Status (Continued ) Drive not be ing acce ssed Drive is being reb uilt or Arra y Capacity expans ion in progr ess Drive Oper ationa l D O NOT REPLACE DRIVE Drive not be ing acce ssed Drive confi gured as part o f an array Drive Oper ationa l D O NOT REPLACE DRIVE Drive s elected usin g the Arr ay Configura tion Util it ...
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Compaq 4200 Family - page 32
4–4 Enc losure 4200 Family L V D Disk Enclosu res User Guide Drive Power Backplane ov ercurrent sensors monitor the +5 VDC and +1 2VDC dri ve voltages. When there is a dri ve ov ercurrent con dition the sensor disconnects the v o ltage from the dri ve. This disables the driv e, ensuring that no data is written to it. The dri v e is disabled until ...
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Compaq 4200 Family - page 33
Disk Drives 4–5 Replacing a Disk Replacing a disk req uires you to ord er a replacement u sing the spare par t number ( see Chapter 6, “Replacing CR Us”). The disk replacement k it contains detailed replacemen t instructions. CAU TI ON : Removi ng more than one disk dri ve at a ti me can cause the enclosure to overhea t. Never remove mo re th ...
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Compaq 4200 Family - page 34
Chapter 5 Enc losure Po wer and Cooling This chapt er descr ibes the funct ion and g eneral operatio n of t he enclosu re po wer supply and fan s. See Figure 5–1 for major co mponent locations. Figu re 5–1. Power Supply and F an Assembly Components Power Sup ply Elemen t AC Input Connector Module La tch Status L ED Fa n T abs Fan Element CXO680 ...
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Compaq 4200 Family - page 35
5–2 Enc losure 4200 Family L V D Disk Enclosu res User Guide Enc losure P ower The po wer supply and fan assembly mount in the rear of the enclosure. The supply is auto-ran ging and operates on an A C input vo ltage o f 100 to 24 0 V AC ±10%, 50 t o 60 Hz ± 5% (90 to 264 V A C, 47 to 63 Hz). There are three DC ou tputs: ■ +5 VDC for the EMU, ...
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Compaq 4200 Family - page 36
Enc losure Po wer and Cooling 5–3 The fan mounting assembly is the element for mounting the secon d fan. This elemen t has no po wer circuitry . It does contain a circuit board for processing signals to and from the fan. T emperature Sensi ng The po wer supply temperature sensor pro vides a temperatur e range signal to the EMU. The EMU can use th ...
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Compaq 4200 Family - page 37
5–4 Enc losure 4200 Family L V D Disk Enclosu res User Guide Status Reporting The gree n status LED on the f an displays the s tatus of eit her the p ower supply or the f an. See T able 5–1 for definitions of the LE D disp lays. Replacing a P ower Supply or Fan Replacing a po wer supply or fa n requires th at you to order a replacement using th ...
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Compaq 4200 Family - page 38
Chapter 6 Replacing CR Us Each replacement CR U kit contains detailed replacement instr uctions. This chapter describes the general rep lacement procedures. Ordering a Spare CRU Ordering a rep lacement CR U requires the Compaq spare par t number . This number is located in the upp er -right corner o f the product label ( see , Figure 6–1). Figu r ...
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Compaq 4200 Family - page 39
6–2 Enc losure 4200 Family L V D Disk Enclosu res User Guide ESD Protection When you replace a CR U, you mus t take precautions to prev ent the possibility of electrostat ic discharge ( ES D ) dam aging sen siti ve electroni c items . 1. Always transport and store CR Us in a static-safe container . 2. Do not remove the CR U from th e static-free ...
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Compaq 4200 Family - page 40
Replacing CR Us 6–3 CAU TI ON : An assembled en closure (all elements install ed) weighs mo re than 65 lb (29.5 kg). Moving the assembled enclosure requires a minimum of two individuals. T o s afel y and easil y instal l the enclosure req uires remov ing the dr ives, po wer suppl y and fa ns, EMU , and I /O modu le. This reduce s th e enc losure ...
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Compaq 4200 Family - page 41
6–4 Enc losure 4200 Family L V D Disk Enclosu res User Guide Replacing a Drive with a Drive Blank Should a disk dri ve fail you m ay wish to replace it with a dri ve blank using the pro cedure in T able 6–2. CAU TI ON : Re moving more than one disk d rive at a time can cause t he enclosure to overhea t. Never remove mo re than on e disk drive a ...
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Compaq 4200 Family - page 42
Replacing CR Us 6–5 4. Insert the d rive blan k part-w ay into the en closure. 5. Firmly press in on th e drive bank t o seat it in the connector . T able 6–2 Installing a Drive B lank (Continued) CXO6824A ...
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Compaq 4200 Family - page 43
Appendix A Regulator y Notices FCC Class B Certification This equipment h as been tested and found to comply with the limi ts for a Clas s B digital de vice, pursuant to P art 15 of the FCC rules. These limits are designed to pro vide reasonable protection against harm ful interference in a residential instal lation. Any changes or modifications ma ...
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Compaq 4200 Family - page 44
A–2 Enc losure 4200 F amily L VD Disk Enclosures User Guide Countr y-Specific Certifications Compaq tests all the electronic prod ucts for comp liance with country-specif i c regu latory requirements either as an indi vidual item or as part of an assembly . The product label (see Figure A–1) specifies the regulations with which the prod uct com ...
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Compaq 4200 Family - page 45
Appendix B Specifications This appendix def ines the physical, en vironmental, and po wer specifications an d the en vironmental specif ications of the disk enclosure and the elements. Physical Specifications CA UTION: The weight of the disk enc losure with the elements installed always requires at least two individuals to move it. Compaq recommend ...
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Compaq 4200 Family - page 46
B–2 Enc losure 4200 F amily L VD Disk Enclosur es User Guide Fi gure B–1. Di mens ions– Ver tical Or ientat ion Figure B–2. Dimensions–H orizontal O rienta tion CXO6965A 1 2 3 CXO6898A 1 2 3 ...
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Compaq 4200 Family - page 47
Specifications B–3 T able B–1 14-Disk Enc losure Physical Specification Horizontal Orientation (see Figure B–1) Vertical Orie ntation (see Figure B–2) Empty Installed Shipping Carton Shipping Carton and Pallet 5.16 in (13.1 cm) 5.16 in (13.1 cm) 25.25 in (64.1 cm) 30.25 in (76.8 cm) 17.625 in (44.8 cm) 17.625 in (44.8 cm) 23.5 in (59.7cm) 4 ...
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Compaq 4200 Family - page 48
B–4 Enc losure 4200 F amily L VD Disk Enclosur es User Guide Environmental Specification s T o ensure optim u m product op eration you m us t mai ntain the operatio nal en v iro nmental specifications listed in T able B–3. Especially critical is the ambient temperature. When shipp in g this produ ct, or placing it in short term storage, Co m pa ...
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Compaq 4200 Family - page 49
Specifications B–5 P ower Specifications T able B–5 defines the A C and DC po wer specif ications for the d isk enclosure po wer supplies . T able B–5 AC and DC Power Specifications AC Po wer Specifications Range Minimum Nominal Maximum Frequenc y (±5% ) 47 Hz 50 to 60 Hz 63 Hz Voltage (±10%) 90 V AC 100 to 240 V A C 264 V AC DC Powe r Spec ...
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Compaq 4200 Family - page 50
Glossar y The terms in this glossary are either unique to the disk en closure, or are common StorageW orks terms. ambient temperat ure The air temperature in an ar ea where a system is installed. Also ref erred to as rack or enclo sure intake air temperatu re. bay The physical location of a dri ve in an enclosure. Each bay is numb ered to defin e i ...
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Compaq 4200 Family - page 51
GL–2 Enc losure 4200 F amil y L VD Disk Enclosures User Guide drive blank A carrier that is required to control airflo w within the enclosure whenev er there is less than a full complemen t of disk dri ves in an enclosure. The only functio n of a passiv e dri ve blank is to contro l airflo w within the disk enclosure. dual power See redundant p o ...
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Compaq 4200 Family - page 52
Glossary GL– 3 pluggable A meth od of element replacem ent whereb y the complete system remains on-line during element remo val or insertion. Ther e is no data transfers ov er the enclosure b uses during remov al or insertion of an element (the bus is “quiesced”). No booting or loadi ng of code is permitted except on the element being inserte ...
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Compaq 4200 Family - page 53
GL–4 Enc losure 4200 F amil y L VD Disk Enclosures User Guide SCSI ID (1.) The bit-signif icant representation of the SCSI add ressing referring to one of the sig nal lines num bered 0 thr ough 7 for an 8-bit b us or 0 throu gh 15 for a 16-b it b us. Also referred to as “tar get ID”. (2.) The unique de vice identification number assigned to e ...
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Compaq 4200 Family - page 54
Index A airflow 1–2 , 4–5 , 6–4 B backplane 1–2 bays, See enclosure C CRUs orde ring 6–1 replacement proced ures 6– 2 replacing 6–1 D data i ntegrity 1– 3 da ta tr ansfer s 1– 3 disk d rive blank 1–6 detecting in stall ation 1–4 detecti ng removal 1–4 disk d rive s 1–2 , 1–6 , 4–1 DC power 5–2 drive bl ank 4– 4 ins ...
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Compaq 4200 Family - page 55
I–2 Enclosur e 4200 Family L VD Disk Enclosures User Guide rear view 1– 2 safety precautions 6–3 weight 6–3 environmental m onito ring unit. See EMU. environmental specifications B–4 operating B–4 shippin g B–4 storage B–4 F fans 1– 2 , 1–6 , 5–1 , 5–3 DC power 5–2 detecting in stall ation 1–4 detecti ng removal 1–4 gu ...
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Compaq 4200 Family - page 56
Index I–3 detecting in stall ation 1–4 detecti ng removal 1–4 diagno stic in form ation 5–2 fan interface 5–3 module latc h 5–1 powe r rat ing s 5–2 protection 5–2 replacing 5–4 status LED 5–1 , 5–4 LED display 5– 4 reporting 5–2 , 5–4 temperature sensing 5–3 product certification A–2 Q quiesc ing 1–6 R replacement ...
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