SeagateメーカーST3146756SS (FDE)の使用説明書/サービス説明書
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Prod uct Ma nu al Ch ee t ah 15 K.6 SAS 10046 6193 Rev . B Sep tember 2008 ST34 50856S S ST33 00656S S ST31 46356S S ST34 50056SS (FDE) ST33 00056SS (FDE) ST31 46756SS (FDE).
©2008, S eagate T echnology LLC All righ ts reserv ed. Pub lication nu mber: 10046619 3, Rev . B Sep tember 2008 Sea gate, Sea gate T echnology and th e W ave logo are registered t rademarks of Seagat e T echnology LL C in the United S t ates and/or other countri es.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B i Cont ent s 1.0 S cope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 S tandards, co m plian ce and reference do cuments .
ii Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 6.4.2 Relat ive humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 6.4.3 E ffective altitude (sea level) . . . . . . . . . . . . . . . . . . . . .
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 1 1.0 S cope This ma nual describes S eagate T echnolog y ® LLC, Cheet ah ® SAS (Se rial Att ached SCSI) di sk drives. Cheet ah 15K.6 drives support the SAS Protoco l specif ic ati ons to the exten t described in this man ual.
2 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 3 2.0 S tandards, compliance and reference document s The dr ive has been d evelope d as a system p eriphe ral to the hig hest st and ards of design and constru ction.
4 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 2.2 C omplia nce 2.2.1 Elect roma gn etic com plia nce Seag ate uses an i ndepend ent lab oratory to confirm comp liance with t he directi ves/stand ards for CE Ma rking and C-T ick Marking. The dr ive wa s tested in a repre sent ative system for typica l applications.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 5 Seag ate also h as internal system s in place to en sure ongoing complian ce with the RoHS Direct ive and all laws and regu lations which restr ict chemical conte nt in el ectron ic products.
6 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 7 3.0 General d escri ption Cheet ah 15K.6 drives provide high performan ce, high capacity dat a storage for a variety of systems including engineer ing worksta tions, netw ork servers, mainframes, and sup ercomputers.
8 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 3. 1 St a ndar d fea tu r e s Cheet ah 15K.6 driv es have th e following standard fea tures: • 1.5 / 3 Gb it Serial Att ached SCSI (SAS) interface • .
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 9 3.4 Reli abilit y • 1,600,00 0 hour MTBF (Ann ualized F ailure Rate (AF R) of 0.55% ) • Incorpor ates industry-st andard Self-M onitoring A nalysis a nd Reporting T echnolo gy (S.M.A.R.T .) • 5-y ear warra nty 3.
10 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 11 4.0 Performance cha r acteristics This secti on pr ovides det ailed informa tion concern ing perfor mance-related ch aracteristics a nd features of Che etah 15 K .
12 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 4.2.2 For m a t command execution time (minut es) When chang ing sector sizes, the format times shown be low may need to be increased by 30 minutes. Note. There is no si gnificant di f fer ence in the format time be tween FDE and non- FD E mod el s of the sa me ca paci ty .
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 13 If the dr ive receives a S T A R T ST OP UNIT command with the ST AR T bit equal to 0 before r eceiving a NO TIFY (ENAB LE SPINUP ) pr imiti ve, t he dr ive w ait s for a S T AR T ST O P UNIT com mand wi th th e ST ART bit e qual to 1.
14 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B Note. The size of each segm ent is not reported by Mod e S ense comma nd page 08h, bytes 14 and 15. The value 0XFF FF is always reported regardless of the actual size of the segment. Sending a size speci fication usin g the Mode Select co mmand (by tes 14 and 15) does no t set up a new segment size.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 15 5.0 Reliabi lity specifi cati ons The follow ing reliab ility specificat ions assume correct hos t and driv e ope ration al int erface, inclu ding all i nter- face timi ngs, power supply volt ages, environ mental requi remen ts and d rive mounting constr aints.
16 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 5.1.3 Seek errors A seek err or is defined as a failure of the dri ve to pos ition the heads to the ad dressed track. A fter dete cting an initia l seek error , the drive automati cally perf orms an error recover y process.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 17 5.2.4 S .M.A. R.T . S.M.A.R .T . is an acronym for Self-Mon itoring Analysis and Repor ting T echnology .
18 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B Re po rt i ng co ntr ol Reporti ng is controlled by the MRI E bits in th e Informa tional Excep tions Control mode page (1Ch). Subject to the repo rting method, th e firmw are wi ll issue to the ho st an 01- 5Dxx sense code.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 19 can be used to set th is t rip poin t. The defau lt val ue for this drive i s 6 8°C, howeve r , you can set it to an y value in the range of 0 to 68°C. If you specif y a temperature great er than 68°C in thi s field, the temp erature is rounded down to 6 8°C.
20 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B A Drive N ot R eady conditi on is rep orted by the dri ve under the following con ditions: • Motor will not spin • Motor will not lock to s peed •.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 21 The dr ive will report the failur e con dition and LBA (if applicable) in the Self-test Re sults Log par ameter . The Sense key , ASC, ASCQ, and FRU are used to repor t the failure co ndition. 5.2.6.2. 5 Abort There are several ways to ab ort a diagnost ic.
22 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 23 6.0 Physi cal/electrical spe ci fications This secti on pro vides infor mation re lating to the physical and electrical chara cteristics of the d r ive. 6.1 AC po wer requ irement s None. 6.2 DC po wer requ irement s The voltage and current requi remen ts for a single d rive are shown below .
24 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B T able 13: ST3450056SS ( FDE) DC po we r re qui rem ents Not es ST3450056SS (FDE) 1.5 Gbit mod e ST3450056SS (FDE) 3 Gbit mo de (Amps) (A mp s) (Amps) (Amp s) V oltage +5V +12V [2] +5V +12V [2] Regulation [5] ± 5% ± 5% [2] ± 5% ±5% [ 2] Av g idle current D CX [1 ] [7 ] 0.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 25 T able 15: ST3300056SS (FDE) DC power requirement s Not es ST3300056SS (FDE) 1.5 Gbit mod e ST3300056SS (FDE) 3 Gbit mo de (Amps) (A mp s) (Amps) (Amp s) V oltage +5V +12V [2] +5V +12V [2] Regulation [5] ± 5% ± 5% [2] ± 5% ±5% [ 2] Av g idle current D CX [1 ] [7 ] 0.
26 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B [1] Measur ed with average readin g DC ammete r or equ ivalent sampling scope. Inst antan eous +12V curr ent peaks will exceed th ese values. Power supply at nomina l voltage. N (nu mber of drives tested ) = 6, 35 Degrees C ambien t.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 27 6.2.1 Cond ucted nois e immunity Noise i s specifi ed as a per iodic and rand om distributi on of fre quencies coverin g a band fro m DC to 1 0 MHz. Maximum allowed noise val ues given below are pe ak-to-peak measurem ents and apply at the d rive power connector .
28 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B Figure 1. T ypical 450GB current profiles Figure 2. T ypical 300GB current profiles.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 29 Figure 3. T ypical 146GB current profiles.
30 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 6. 3 Po wer di ssipat ion ST3450856SS model T ypical power dissi pation under idle co nditions in 3Gb opera tion is 1 1.85 watts (40.44 B TUs per hour). T o obtain oper ating power for typical rando m read operations, re fer to the following I/O rate curve ( see F igure 4).
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 31 ST3450056SS (F DE) m odel T ypical power dissi pation under idle co nditions in 3Gb opera tion is 1 1.64 watts (3 9.72 BTUs per hour). T o obtain oper ating power for typical rando m read operations, re fer to the following I/O rate curve ( see F igure 4).
32 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B ST3300656SS model T ypical power dissi pation under idle co nditions in 3Gb opera tion is 10.26 watt s (35.01 BTUs per hour). T o obtain oper ating power for typical rando m read operations, re fer to the following I/O rate curve ( see F igure 4).
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 33 ST3300056SS (F DE) m odel T ypical power dissi pation under idle co nditions in 3Gb opera tion is 10.42 watt s (35.56 BTUs per hour). T o obtain oper ating power for typical rando m read operations, re fer to the following I/O rate curve ( see F igure 4).
34 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B ST3146356SS m odel T ypical power dissi pation under idle co nditions in 3Gb opera tion is 9.06 watt s (30.92 BTU s per hour ). T o obtain oper ating power for typical rando m read operations, re fer to the following I/O rate curve ( see F igure 4).
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 35 ST3146756SS ( FDE) model in 3 Gb it operation T ypical power dissi pation under idle co nditions in 3Gb opera tion is 9.15 watt s (31.22 BTUs per hour ). T o obtain oper ating power for typical rando m read operations, re fer to the following I/O rate curve ( see F igure 4).
36 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 6.4 Enviro nmental limi t s T emperatur e and humidity values exp erienced by the dr iv e must be such that cond ensation does not occur on any dr i ve p art. Altit ude and a tmospheric p ressure sp ecifications are reference d to a stand ard day at 58.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 37 6.4.2 Relative hu m idity The valu es below assume that no cond ensation on the dr i ve occur s. a. Operati ng 5% to 95% non- condensing r elative humidity w ith a max i m um gradie nt of 20% per h our . b.
38 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B d. Packag ed disk drives shipped as loose loa d (not palletized) general freight will b e p ackaged to withstand drops from hei ghts as de fined in the t able bel ow . For add i t ional de tails refer to Seagate specific ations 30 190-001 (under 100 lbs/45 kg) or 30191-001 (o ver 100 lbs/45 Kg).
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 39 6.4.4.2 V ibrat ion a. Operati ng—nor mal The dr ive as inst alled for normal oper ation, shall co mply wit h the comp lete specified perf ormance while subjected t o continuous vibr ation not exce eding 10–500 Hz @ 0.
40 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B Users shoul d use cau tion exposing an y electronic component s to uncontroll ed chemical pollut ants and corr o- sive chemi cals as el ectroni c dr ive com ponen t reliab i lity can be af fected by the i nst allati on environmen t.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 41 Figure 12. Physical dimensions 26.1 1 MAX (1.028 MAX) 2X 20.14 (2X .793) 6.35 (.250) 24.00 (.945) 2X 28.45 (2X 1.120) 2X 70.05 (2X 2.758) 122.00 (4.803) 2X 130.05 (2X 5.120) 0.36 ( .014) 146.99 MAX (5.787 MAX) 131.
42 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 43 7.0 Defect and error management Seag ate continues to use innovative techno logies to ma nage defect s and errors. T hese technologie s are designed to increase da ta integr ity , per form drive se lf-m aintenance, and val idat e proper drive o perati on.
44 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B The dr ive firmwa r e error recovery algor ithms consists o f 13 levels for read recove ries and five levels for write. Each level may consist of m ultiple steps, where a step is defined as a recovery functi on involv ing a sin gle re- read or re-write a ttempt.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 45 7. 3 SA S s ystem err ors Inform ation on the reporti ng of oper ational er rors or fau lts acr oss the interface is given in t he SAS Interf ace Manual . The SSP Respon se returns i nformation to the host about numerous kinds of e rrors or fault s.
46 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 7.6 De ferr ed A uto-Rea ll ocat ion Deferred Aut o-Realloc ation (DAR) simplifies reallocation al g orithms at the system leve l by allowing the drive to reall ocate un readabl e location s on a subse quent write command.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 47 8.0 Inst al lat ion Cheet ah 15K.6 disk dri ve inst allat ion is a plug -and-pla y process. T here are no jumpers, swi tches, or t ermina- tors on the drive. SAS drives are designed to be used in a host system t hat pr o vides a SAS-com patible backplane with bays designed to accommodate t he drive.
48 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B If for ced air is d etermined to be necessar y , possi ble ai r-flow p atterns are shown in F igure 13 . The air-flow p at- terns ar e created by one or more fans, either for cing or drawing air as sho wn in the illustrati ons.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 49 8. 3 Dr iv e mo unti ng Mount the dr iv e using the b ottom or side mo unti ng holes. If you moun t the d ri ve u sing the botto m ho le s, ensu re that you do not physically disto rt the drive by att empting to mount i t on a stiff, non -flat surface.
50 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 51 9.0 Interface requ i rement s This secti on par tially describe s the i nterface req uirements as implem ented on Cheet ah 15K.6 dri ves. Addi- tion al informatio n is provided i n the SA S Interfa ce Manual (p art numbe r 100293071).
52 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 9.2 Dual port su pport Cheet ah 15K.6 SAS drives have two i ndepende nt ports. Th ese ports may be connecte d in the same or dif fer- ent S CSI domains . E a ch drive por t has a unique SAS address. The two port s run at the same link rate.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 53 9. 3 SC SI comm and s su ppor te d T able 21 list s the SCSI co mmands supporte d by Cheetah 15 K .6 drives.
54 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B Non -medi um Erro r pa ge (06h) Y Page s Suppor ted list (00h) Y Rea d Erro r Counter pa ge (0 3h) Y Re ad Reverse E rror Cou nter page ( 04h) N Self-te.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 55 Reassign B locks 07h Y Recei ve Diagnosti c Result s 1Ch Y Supp orted D iagnostic s pages ( 00h) Y T ranslate p age (40h) Y Release 17h Y Relea se (10) 5.
56 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B [1] Cheet ah 15K.6 drives can format to 512 , 520, 524, or 52 8 bytes per lo gical block. [2] Wa r n i n g . Power lo ss during flas h progr amming can result in firmware corru ption. This usually makes the driv e inoperab le.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 57 9.3.1 Inqu iry dat a T able 22 list s the Inquiry co mmand dat a that the dr ive should r eturn to the ini tiator p er the f ormat give n in the SAS In terface Ma nual . T able 22: In qu iry dat a * Copyright year (changes with actual y ear).
58 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 9.3.2 Mode S ense dat a The M ode Se nse comman d provides a way for the d rive to rep ort its operating parameter s to the i nitia tor .
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 59 9.3.2.1 ST3 450856S S/ST34500 56SS Mode S ense da ta MOD E DATA HE ADER : 01 2 e 00 10 00 00 0 0 08 MODE PAG ES: DEF 81 0a c0 0b ff 00 00 00 05 00 ff ff .
60 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 9.3.2.2 ST3 300656S S/ST33000 56SS Mode S ense da ta MOD E DATA HE ADER : 01 2e 00 10 00 00 00 08 MODE PAG ES: DEF 81 0a c0 0b ff 00 00 00 05 00 ff ff C.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 61 9.3.2.3 ST3 146356S S/ST31467 56SS Mode S ense da ta MOD E DATA HE ADER : 01 2e 00 10 00 00 00 08 MODE PAG ES: DEF 81 0a c0 0b ff 00 00 00 05 00 ff ff CH.
62 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 9. 4 M iscel la neou s op erati ng fe at ures and con dit ions T able 23 lists va rious featur es and conditio ns. A “Y” i n the suppor t column indica tes the featu r e or con dition is support ed. An “N” in th e support co l umn ind icates the feat ure or con dition is no t supported.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 63 Det ails of the ph ysical, electrical, an d logi cal charac teristics are provide d w ithin t his section. Th e operational aspect s of Seagate’ s SAS drives are pro vided in the SA S Interfa ce Manual .
64 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B Figu re 15 . SAS c on nect or dime n sio ns C OF DATUM B L 5.08 1.27 (6X) 1.27 (14X) 15.875 0.35MIN 15.875 33.43 0.05 B 4.90 0.08 0.84 0.05 (22X) 0.15 B P15 P1 S7 S1 SEE Detail1 0.30 0.05 (4X) 4.00 0.08 0.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 65 Figu re 16 . SAS c on nect or dime n sio ns 9.4.2 Physical charact er istic s This section defines physical int erface connector . 9.4.3 Conn ector req u irem ents The S AS connector o n the drive comp lies with SF F-8 482.
66 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 9.4.4 Electrical d escription SAS d rives use the d evice connector for: • DC power • SAS inte rface • Activity LED This conn ector is designe d to either plug directly into a backpanel or accept c ables.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 67 9.4.6 SAS transm itters and r eceivers A typ ical SAS differe ntial co pper tra nsmitter and r eceiver pai r is sh own in Figu re 17. The receiver is AC cou- pling to elimi nate groun d shif t noise. Figure 17.
68 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B The Re ady LED Out signa l is designed t o pull down th e cathode of an LED. The an ode is attache d to the proper +3.3 volt supp ly through an app ropriate current li miting resi stor . The LED and th e current li miting r esis- tor ar e external to the d r ive.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 69 9.5.2.1. 2 Rec eive eye m ask Figure 18 describes t he receive eye m ask. This eye mask ap plies to jitter af ter the applicati on of a singl e pole high-p ass frequency-wei ghting function tha t progr essively attenuates jitter at 20 dB /decade below a frequency of ((b it rate) / 1 .
70 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B The leading and tr ailing edge sl opes of figure 18 shall be preserved. As a result the a mplitude valu e of Z 1 is less than that given in table 30 and.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 71 9.5.2.2 T ran smitte r signa l characterist ics T able 29 specifies th e signal requ i reme nts at the tra nsm itte r end of a TxRx con nection as me asured into the zero-le ngth test load. All specific ations are b ased on differ ential measureme nts.
72 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 9.5.2.3 Receiver signal cha racteri stics T able 3 0 defines the compl iance point requirement s of the si g nal at th e receiver e nd of a T xRx connection as measur ed into the te st loads specified i n fi gure 21 a nd figure 22 .
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 73 9.5.2.3. 2 Receiver jit ter to lerance T able 32 d efines the am ount of jitter the receiver shall tolerate . 9.5.2.3. 3 Compliant jit ter test p attern ( CJTP A T) The C JTP A T withi n a comp liant pr otocol fra me is used for all jitter te sting unless o therwise specifie d.
74 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B 9.5.2.4 Elect rical T xRx conn ections TxRx conn ections may be divid ed into T xRx connecti on segment s. In a sing le TxRx conne ction individual TxRx connection segmen ts may be formed from dif fering medi a and material s, including traces on printed wir - ing boa rds and opti cal fib ers.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 75 A com binatio n of a zer o-length t est load and the tran smitter compl iance transf er function (TCTF) test load method ology is use d for the specificat i on o f transmitter characteristics. This method ology specifies the trans- mitter signal at t he test point s on the required test l oads.
76 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B Figure 22 shows the zero- l ength test load. Figu re 2 2 . Zer o-l engt h test loa d Figure 23 shows an ISI loss example at 3.0 Gbp s. Figure 23. ISI loss example at 3. 0 Gbps Figure 24 shows an ISI loss example at 1.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 77 9.5.2.5 Receiver characterist ics The driv e re ceiver i s A.C. coup led. The recei ve netwo r k termina tes the TxRx conne ction by a 1 00 ohm eq uiva- lent i mpedance a s specified in tabl e 33.
78 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 79 10.0 Seagat e T echnology suppo r t ser vice s Inter net For info rmation regardi ng Seagate pr oducts an d services, visit www .se a gate.com . W orldw ide support i s availa ble 24 hour s daily by email fo r your questions.
80 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B Custo mer Se rvice Op eratio ns W arranty Ser vice Seag ate of fer s worldw ide custom er supp ort for Seagate pro duct s. Seagate distri butor s, OEMs and other direct customer s should cont act their Seagate Custom er Service Operation s (CSO) r epresent ative for wa rranty- related issu es.
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 81 Index Numerics 12 volt pin s 67 5 volt pins 67 A abort t ask set function 51 AC coup li ng 67 AC powe r requirem ents 23 ACA active status 62 ACA acti ve.
82 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B envi ronmenta l contro l 39 error manage ment 43 rat es 15 error s 43 F FCC rules and r egulations 3 feature s 8 interface 51 firmware 8 corrup tion 56 .
Cheetah 1 5K.6 SAS Prod uct Manual, R ev. B 83 non-op erating 37 , 39 temper ature 36 non-op erating vibr ation 39 O offi ce environme nt 39 operat i n g 37 , 39 option sel ection 66 out-of- plane dis.
84 Cheetah 1 5K .6 SAS Produ ct Manual , Rev. B T task man agement functions 5 1 Abort task se t 51 Clear ACA 51 Clear task se t 51 termina te task 51 task man agement response codes 51 Function compl.
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Seag ate T echno logy L LC 920 D isc Drive , Scott s V alley , Califo r ni a 95066- 4544, USA Public ation N umber: 1 00466193, Rev . B, Printed in U SA.
デバイスSeagate ST3146756SS (FDE)の購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Seagate ST3146756SS (FDE)をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはSeagate ST3146756SS (FDE)の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Seagate ST3146756SS (FDE)の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Seagate ST3146756SS (FDE)で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Seagate ST3146756SS (FDE)を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はSeagate ST3146756SS (FDE)の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Seagate ST3146756SS (FDE)に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちSeagate ST3146756SS (FDE)デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
