SeagateメーカーST38421Aの使用説明書/サービス説明書
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U4 Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST32112A, ST34311A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U4 Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST32112A, ST34311A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1999 Seaga te Tech nology, In c. Al l rights reser ved Public ation Numbe r: SG 35116-0 01, Rev . D, Jun e 1999 Seagate, Seagate Technology, the Seagat e logo and U4 are either trademarks or registe red trademar ks of Sea gate Technology, Inc. Other product names are register ed trademarks or trademarks of their owners.
U4 Family Produc t Manua l, Rev. D iii Conten ts Specification summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.0 Drive s pecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Formatted capac ity .
iv U4 Family Produc t Manua l, Rev. D 2.0 Configuring and mounting the driv e . . . . . . . . . . . . . . . . . . . 1 7 2.1 Handli ng and static-disc harge precau tions . . . . . . . . . . . . . . 1 7 2.2 Jumpe r settin gs . . . . . . . . . . . . . . .
U4 Family Produc t Manua l, Rev. D v Seagate Connfidential Revi ew Draft - NOT FOR DISTRIBUTION Figures Figure 1. Typical start up and o peration curre nt prof ile . . . . . . . . . . . . 9 Figure 2. Mas ter/slave ju mper settings . . . . . . . . . . .
vi U4 Family Product Manual , Rev. D. Seagate Confidential Rev iew Draft - NOT FOR DISTRIBU TION.
U4 Family Produc t Manua l, Rev. D 1 Introduction This manual describes the func tional, mec hanic al and interf ace specif i- cations for the U4 ST38 421A, ST364 21A, ST343 11A a nd th e ST32112A.
2 U4 Family Pr oduc t Manual, Re v. D Specificati on summary table The specif icati ons liste d in this table are for quick referen ce. For de tails on spec ifica tion m easurem ent or defin ition, see t he approp riate sect ion of this m anual.
U4 Family Produc t Manua l, Rev. D 3 T rac k-to-tr ac k see k time (msec typic al) 2.0 (read), 2.75 (write) A v er age seek time (m sec typical) 10.5 (r ead), 11.5 ( write) Full-strok e se ek tim e (msec ty pical) 24.0 (r ead), 26.0 ( write) A v er age late ncy (m sec) 5.
4 U4 Family Pr oduc t Manual, Re v. D Vibra tion, nono perat ing 5 Gs (0 t o peak, 5– 350 Hz) Drive acoustic s Sound po wer Idle mode Seek mode 3.3 (typ ical ), 3.
U4 Family Produc t Manua l, Rev. D 5 1.0 Driv e specifi cations Unless othe rwise n oted, all sp ecifica tions are measu red unde r ambient conditio ns , a t 25 °C, and nomin al pow er.
6 U4 Family Pr oduc t Manual, Re v. D 1.3 Recording and inter face technology 1.4 Phys ical c haract eristics 1.5 Se ek t ime Seek meas urements are taken with nomin al power at 25° C ambien t temperatu re. All times are m easured using d rive d iagnos tics.
U4 Family Produc t Manua l, Rev. D 7 • Averag e seek time is a tr ue stati stical r andom average o f at le ast 5,00 0 measure ments of s eeks be tween r andom tracks, l ess ove rhead.
8 U4 Family Pr oduc t Manual, Re v. D • Seek Mode During seek mode , the read/ write a ctuator arm move s towar d a specifi c position on the di sc surface and does not exec ute a read or write op eration.
U4 Family Produc t Manua l, Rev. D 9 1.7.1.1 Typica l current prof ile Figure 1 s hows a typica l curr ent profi le. Figure 1. Typical startup and ope ration curren t profile Power Mode Typical Watts RMS Typical Amps RMS 5V 12V Spinu p — — 1.5 (pea k) Seek (R andom, no read/write) 7.
10 U4 Family Produc t Manua l, Rev. D 1.7.2 Conducted noise Input n ois e rippl e i s mea su re d a t the ho st sy s tem powe r su ppl y ac ro ss an equiv alent 80-oh m resist ive lo ad on the +1 2 vol t line or an e quiva lent 15-ohm res istive load o n the +5 v olt li ne.
U4 Family Produc t Manua l, Rev. D 11 drive buffer is enab led, th e h eads a re par ked an d the spi ndle is at rest. The drive ac cepts all comm ands an d returns to A ctive mo de any time disc a ccess is n ecessa ry. • Sleep mode The drive enter s Sleep mode after receiv ing a Sleep co mmand from the host.
12 U4 Family Produc t Manua l, Rev. D 1.8.3.2 Wet bulb temperature 1.8.4 A ltitude 1.8. 5 Shock All shoc k spec ificatio ns ass ume that the drive is mou nted secu rely wit h the input sh ock ap plied at the dri ve mountin g scr ews. Sh ock may b e applied i n the X , Y or Z ax is.
U4 Family Produc t Manua l, Rev. D 13 1.8.6. 1 Opera ting vibr at ion The following table lists the maximum vibration levels that the drive may expe- rience while meeting the per formance standards specifie d in this document .
14 U4 Family Produc t Manua l, Rev. D 1.10 El ectroma gnetic sus ceptibility The drive op erate s without e rrors whe n subjec ted to t he foll owing: 1.11 Rel iability 1.12 Agency c ertification 1.12.1 Safe ty c ertificatio n The drives are rec ognized in accor dance wi th UL 19 50 and CS A C22.
U4 Family Produc t Manua l, Rev. D 15 comply with t he direc tives when used in th e tes t system s, we canno t guarante e that all sys tems will comp ly with the d irectives.
16 U4 Family Produc t Manua l, Rev. D If nece ssary , you shoul d cons ult your deale r or an ex perienc ed ra dio/ televisio n technic ian for addi tional suggesti ons. Yo u may find he lpful th e following bookl et prepa red by th e Feder al Comm unicatio ns Com mis- sion: How to Identify and Resolve Radio- Television Interferenc e Prob- lems .
U4 Family Produc t Manua l, Rev. D 17 2.0 Configuring and mounting the drive This sec tio n c onta in s th e s pec if ic ati ons an d in st ru ctio n s fo r con fig urin g and mounti ng the drive.
18 U4 Family Produc t Manua l, Rev. D 2.2 Jumpe r settings 2.2.1 M aster/s lave conf iguration The options jumper blo ck (J8) sh own in Figu re 2 is used to co nfigure th e drive for ope ration. It is the 6-p in dual head er between the I/O conn ector and the powe r co nnector.
U4 Family Produc t Manua l, Rev. D 19 2.2. 2 Cable-se lect option Computers that use cable-s elect deter mine the maste r and slave driv es by selec ting or dese lecting p in 28, CSEL, on th e interfac e bus. Mas ter and slav e driv es ar e determi ned by their ph ysic al po sition on the cable .
20 U4 Family Produc t Manua l, Rev. D 1.00 ± 0.028 ( 25.4 ± 0.7) 3.72 ± 0.03 (94.5 ± 0.8 ) 4.00 ± 0.02 (101.6 ± 0 . 5) 3.750 ± 0.010 (95.25 ± 0 . 25) 5.75 ± 0.03 ( 146.1 ± 0.8 ) 4.000 ± 0.010 ( 101.60 ± 0.25 ) 3X.250 ± . 015 (6.35 ± 0.38) (both sides) 2.
U4 Family Produc t Manua l, Rev. D 21 3.0 ATA i nterface These drive s use the i ndustry -standa rd ATA t ask file interfac e that support s 16-bit data transfe rs. It supports ATA prog rammed inp ut/outpu t (PIO) mo des 0–4; m ultiwo rd DMA modes 0– 2, and U ltra D MA mod es 0–4.
22 U4 Family Produc t Manua l, Rev. D Figure 4. I/ O pins and supported ATA signal s Reset – Ground DD7 DD8 DD6 DD9 DD5 DD10 DD4 DD11 DD3 DD12 DD2 DD13 DD1 DD14 DD0 DD15 Ground (removed) DMARQ Groun.
U4 Family Produc t Manua l, Rev. D 23 3.2 A TA Interf ace commands 3.2.1 Supported ATA commands The followin g table li sts A TA-st andar d comma nds that th e drive s up- ports. For a d etailed des cripti on of the ATA comma nds, refe r to the Draf t ATA-4 Sta ndard.
24 U4 Family Produc t Manua l, Rev. D 3.2.2 I dentify D rive co mmand The Identify Drive comm and (co mmand code EC H ) tran sfers inf ormat ion about the dr ive to the hos t foll owing po wer up. The data is organi zed as a single 512 -byt e bloc k of da ta, w hos e c on tents a re sh own in t he tabl e below.
U4 Family Produc t Manua l, Rev. D 25 Word Descr iption Value 0 Configur ation i nformati on: • Bit 15: 0 = ATA; 1 = ATA PI • Bit 7: removab le med ia • Bit 6: r emovab le co ntrolle r • Bit 0.
26 U4 Family Produc t Manua l, Rev. D 27–46 Drive m odel num ber: (4 0 ASCI I char- acters, padde d with blanks to end of string) ST32112A ST34311A ST36421A ST38421A 47 (Bits 7– 0) Maxim um sec to.
U4 Family Produc t Manua l, Rev. D 27 63 Multiword DM A act ive and m odes support ed (see n ote fol lowing this table) xx 07 H 64 Advanc ed PIO mo des s upported (modes 3 and 4 suppo rte d) 0003 H 65.
28 U4 Family Produc t Manua l, Rev. D 91–92 ATA- reserved 0000 H 93 Hardware Reset Value (see de scription follo wing thi s table) 4000 H 94–127 ATA- reserved 0000 H 128 S ecur ity S tat us 0001 H 129–159 Se agate- reser ved xxxx H 160–255 ATA -reserved 0000 H Note.
U4 Family Produc t Manua l, Rev. D 29 3.2.3 S et Feat ures command This comm and co ntrol s th e im pl eme ntat ion of v ar ious f eature s th at th e drive su pports. Wh en the drive receiv es this comma nd, it sets BSY , checks the conte nts of the Featu res reg ister, cle ars BS Y and g enerates an interrup t.
30 U4 Family Produc t Manua l, Rev. D Note. At power-o n, or after a hardware or softwa re reset, the defaul t values of the fe atures a re as in dicat ed abov e. 3.2.4 S.M.A.R.T. commands S.M.A. R.T. p rovide s near -term failu re predi ction for dis c drives .
U4 Family Produc t Manua l, Rev. D 31.
32 U4 Family Produc t Manua l, Rev. D.
U4 Family Produc t Manua l, Rev. D 33.
34 U4 Family Produc t Manua l, Rev. D Seagate Technology, Inc. 920 Disc Dri ve, Scot ts Valle y, California 95066, U SA Publication Number: SG35116-001, Rev .
デバイスSeagate ST38421A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 ST38421A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 ST38421A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 ST38421A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 ST38421A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 ST38421A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 ST38421A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 ST38421A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 ST38421A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。
