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Seagate ST380020A - page 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U Series Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST380020A, S T360020A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST340810A, S T320410A . . . . . . . . . . ...
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Seagate ST380020A - page 2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U Series Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST380020A, ST360020A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST340810A, ST320410A . . . . . . . . . . . . ...
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Seagate ST380020A - page 3
2001 Se agate Tec hnology LLC All ri ghts reserv ed Public ation Number: 100129581 , Rev. B, Jul y 2001 Seagate, Seagate Technology and the Seagate logo are registered trademarks of Seagate Technology LLC. SeaShield, SeaShell and U Series are either registered trademarks or trademarks of Seagate Technology LLC. Other product names are registere ...
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Seagate ST380020A - page 4
U Series Family P roduct Manu al, Rev. B iii Conten ts Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Specification s ummary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.0 Drive s pecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Forma ...
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Seagate ST380020A - page 5
iv U Se ries Famil y Product M anual, Rev. B 1.12.3 FCC v erification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . 1 7 2.1 Handli ng and st atic-discharg e precautio ns . . . . . . . . . . . . . . 1 7 2.2 Jumpe r settings . . . . . . . . . . . . . . . . . . ...
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Seagate ST380020A - page 6
U Series Fam ily Prod uct Manual , Rev. B v Figures Figure 1. Typical startup and o peration current pr ofile . . . . . . . . . . . . 9 Figure 2. Master/sla ve jumper settings . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 3. Mounting d imensions—top , side and end view . . . . . . . . . 20 Figure 4. I/O pins and supported AT A signals . ...
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Seagate ST380020A - page 7
vi U Se ries Famil y Product M anual, Rev. B ...
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Seagate ST380020A - page 8
U Series Fam ily Prod uct Manual , Rev. B 1 Introduction This m anual desc ribes the functiona l, mechanic al and i nterface specifi- cations fo r the ST38 0020A, ST360 020A, ST34 0810A and the ST32041 0A. These drives prov ide the fo llowin g key featur es: • 8.9 msec seek time , 5,400 RPM and 2-Mby te buffer combine for excell ent desktop perfo ...
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Seagate ST380020A - page 9
2 U Series F amily Produ ct Manual , Rev. B Specificati on summary table The spe cification s listed in this tabl e are for qui ck refere nce. For de tails on spec ification measuremen t or defini tion, see the appr opriate s ection of this manual. Drive Specification ST380020A ST360020A ST340810A ST320410A F or matted Gbytes ( × 10 6 bytes) 80 60 ...
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Seagate ST380020A - page 10
U Series Fam ily Prod uct Manual , Rev. B 3 A verage seek read (msec typical) 9.9 A verage seek write (msec typical) 10.9 Full-stroke seek time (msec typical) 22.0 (read) 24.0 (write) A verage latency (msec) 5.55 msec P ower-on to ready ( sec typical) 6.5 sec Standby to ready ( sec typical) 6.5 sec Spindown (sec typical) 10 sec Star tup current (ty ...
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Seagate ST380020A - page 11
4 U Series F amily Produ ct Manual , Rev. B Drive acoustics Sound power in bels Idle mode Quiet Seek P erformance Seek 3.0 (typical), 3.3 (max) 3.2 (typical), 3.5 (max) 3.4 (typical), 3.7 (max) Nonrecover able read errors 1 per 10 13 bits read Mean time between failures (po wer-on hours) 600,000 Contact star t-stop cycles (25°C, 40% re lativ e hum ...
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Seagate ST380020A - page 12
U Series Fam ily Prod uct Manual , Rev. B 5 1.0 Dr ive specifi cations Unle ss other wise not ed, all sp ecific ation s are meas ured unde r ambi ent condit ions, a t 25°C, and no minal p ower. Fo r conven ience, the ph rases the dri ve and this dr ive are used th rougho ut thi s manua l to in dicate the ST38002 0A, ST3600 10A, ST3408 10A and th e ...
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Seagate ST380020A - page 13
6 U Series F amily Produ ct Manual , Rev. B 1.2 Physical organization 1.3 Recording and inter face technology 1.4 Phys ical chara cteristics Drive Mode l Read/Write heads (GMR) Number of discs ST380020 A 4 2 ST360020 A 3 2 ST340810 A 2 1 ST320410 A 1 1 Interface ATA Recording m ethod 96/102 GP RML Recordi ng density B PI (bit s/inch) 562,43 6 Track ...
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Seagate ST380020A - page 14
U Series Fam ily Prod uct Manual , Rev. B 7 1.5 Se ek ti me Seek meas urements are tak en with nomin al power at 25°C amb ient temperatu re. All ti mes are m easured using dri ve diagnos tics. Th e spec- ificati ons in the tab le below a re defined as follows: • Track- to-track s eek time is a n average of all po ssible s ingle-t rack seeks i n ...
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Seagate ST380020A - page 15
8 U Series F amily Produ ct Manual , Rev. B 1.7 Powe r specifications The driv e receive s DC power (+5V or +12 V) through a four-pin standar d drive p ower connec tor. 1.7.1 Power consumption Power r equirements for the drives ar e listed in the table on page 9 . Typical power measureme nts are based o n an average of dr ives tested , under nomi n ...
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Seagate ST380020A - page 16
U Series Fam ily Prod uct Manual , Rev. B 9 1.7.1.1 Typical current profile Figure 1. Typical startup and ope ration current profile Power Mode Typical Watt s Typical Amps Mean s 5V 12V Spinup — 0.75 2.5 Seek (R andom, no read/write) Perfor mance mode 7.5 0.83 0.279 Operating (rea d/write) Perfor mance mode 7.5 0.94 0.233 Idle 5 .0 0.66 0.142 Sta ...
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Seagate ST380020A - page 17
10 U Se ries Family P roduct Manu al, Rev. B 1.7.2 Conducted noise Input n oise rippl e is measu red at the host sy stem powe r suppl y across an equiv alent 80- ohm resist ive load on the +1 2 volt l ine or an e quivalen t 15-ohm r esistive lo ad on the + 5 volt line . • Using 12- volt power, the drive is expec ted to opera te with a maximum of ...
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Seagate ST380020A - page 18
U Series Fam ily Prod uct Manual , Rev. B 11 establishe d using a Standb y or Id le command . In Stand by mode, the drive buffer is e nabled, th e head s are par ked and th e spindle is at res t. The drive accepts all commands and returns to Active mo de any tim e disc a ccess is nece ssary. • Sleep mode The drive enters Sleep mode after rec eivi ...
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Seagate ST380020A - page 19
12 U Se ries Family P roduct Manu al, Rev. B 1.8. 3 Humi dity 1.8.3. 1 Relative Hum idity 1.8.3.2 Wet bulb temperature 1.8.4 A ltitude 1.8.5 S hock All sh ock sp ecificatio ns ass ume that the dri ve is mou nted sec urely wit h the input sh ock appli ed at the dri ve mountin g screws. Sh ock may b e applied i n the X, Y or Z axis. 1.8.5. 1 Operatin ...
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Seagate ST380020A - page 20
U Series Fam ily Prod uct Manual , Rev. B 13 1.8.6. 1 Operati ng vibrati on The follo wing table li sts the maximu m vibration le vels that th e drive may experienc e while mee ting the perf ormance sta ndards spec ified in th is document. 1.8.6.2 Nonoperating vibration The foll owing table l ists the max imum non operating v ibration tha t the dri ...
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Seagate ST380020A - page 21
14 U Se ries Family P roduct Manu al, Rev. B 1.10 Electromagnetic immunity When pr operly i nstalled in a rep resenta tive host system, the driv e operates w ithout errors or deg radation in perfor mance when sub jected to the radi o frequency (RF) envir onments d efined in the fo llowing ta ble: 1.11 Rel iability 1.12 Agency c ertification 1.12.1 ...
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Seagate ST380020A - page 22
U Series Fam ily Prod uct Manual , Rev. B 15 1.12.2 Electromagnetic compatibil ity Hard drives that display the CE mark compl y with the Europea n Union (EU) req uirement s specifi ed in the El ectromagneti c Compati bility Direc - tive (89/3 36/EEC). Testin g is performed to the lev els specifi ed by the product standard s for Inf ormation T echno ...
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Seagate ST380020A - page 23
16 U Se ries Family P roduct Manu al, Rev. B Australian C-Tick (N176 ) If these dri ves have th e C-Tick mark ing, they compl y with the Australia/ New Zealan d Standard AS /NZS3548 199 5 and meet the El ectromag- netic Com patibility (EMC) Fram ework requ irements of the Austr alian Communic ation Auth ority (ACA) . 1.12.3 FCC verificati on These ...
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Seagate ST380020A - page 24
U Series Fam ily Prod uct Manual , Rev. B 17 2.0 Configuring and mounting the drive This s ection conta ins the s pecific ations an d instru ctions for c onfigur ing and mounting the dr ive. 2.1 Handling and static -disch arge precautions After unpacking, and before installation, the drive may be exposed to potential handling and electrostatic dis ...
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Seagate ST380020A - page 25
18 U Se ries Family P roduct Manu al, Rev. B 2.2 Jumpe r settings 2.2.1 M aster/sla ve configuration The optio ns jumper bl ock show n in Figure 2 is used to c onfigure the drive for operatio n. It is the 8-pi n dual head er between th e interface conn ector and the powe r connec tor. Use the following settin gs to config ure the drive a s a master ...
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Seagate ST380020A - page 26
U Series Fam ily Prod uct Manual , Rev. B 19 2.2.2 C able-selec t option Computers that use cable-sel ect determine the ma ster and slave drives by selec ting or dese lecting p in 28, CSEL, on the inter face bus. Ma ster and slav e drives are deter mined by the ir phys ical posi tion on the cable. To enabl e cable se lect, set a jumper on pins 5 an ...
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Seagate ST380020A - page 27
20 U Se ries Family P roduct Manu al, Rev. B 2.1 Drive mounting You ca n mount the drive in any orienta tion using four screws in the side- mounting holes or four screws in the b ottom-mounti ng holes. S ee Figur e 3 for drive mounting di mensions. Fol low these impo rtant moun ting precaut ions when mounting the d rive: • Allow a mi nimum clear ...
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Seagate ST380020A - page 28
U Series Fam ily Prod uct Manual , Rev. B 21 3.0 ATA i nterface These dri ves use the i ndustry- standard ATA task file interface tha t support s 16-bit data transfers. It su pports ATA prog rammed input/o utput (PIO) mod es 0–4; multi word DMA modes 0–2, and Ul tra DMA modes 0–5. The drive als o supports the use of th e IORDY s ignal to pr o ...
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Seagate ST380020A - page 29
22 U Se ries Family P roduct Manu al, Rev. B Figure 4. I/ O pins and supported ATA sig nals Reset – Ground DD7 DD8 DD6 DD9 DD5 DD10 DD4 DD11 DD3 DD12 DD2 DD13 DD1 DD14 DD0 DD15 Ground (removed) DMARQ Ground DIOW– STOP Ground DIOR – HDMARDY – HSTROBE Ground IORDY DDMARDY– DSTROBE CSEL DMACK – Ground INTRQ IOCS16 – DA1 PDIAG – CBLID? ...
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Seagate ST380020A - page 30
U Series Fam ily Prod uct Manual , Rev. B 23 3.1.1 Supported ATA commands The follo wing table li sts ATA-st andard co mmands that the drive sup- ports. For a d etailed descripti on of the ATA commands, refe r to the Draf t ATA-Rev 6 Standa rd. See Secti on 3.1.4 on page 31 for det ails and subcomm ands use d in the S .M.A.R.T. imp lementati on. Co ...
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Seagate ST380020A - page 31
24 U Se ries Family P roduct Manu al, Rev. B 3.1.2 I dentify Driv e command The Iden tify Drive command (command code EC H ) tr ansfe rs inf ormati on about the dr ive to the host fo llowing po wer up. The data is organize d as a single 512-byt e block of da ta, whose c ontents a re shown in the tabl e on page 25. A ll reserve d bits or wor ds shou ...
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Seagate ST380020A - page 32
U Series Fam ily Prod uct Manual , Rev. B 25 Word Description Value 0 Configu ration info rmation: • Bit 15: 0 = ATA; 1 = ATAPI • Bit 7: r emovable media • Bit 6: rem ovabl e cont roll er • Bit 0: res erved 0C5A H 1 Number of logical cylinder s 16,383 2 AT A-res erved 0000 H 3 Number of logical heads 16 4 Retired 0000 H 5 Retired 0000 H 6 N ...
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Seagate ST380020A - page 33
26 U Se ries Family P roduct Manu al, Rev. B 50 Device- specific standby timer v alue 0000 H 51 P IO dat a-tr ansfe r cycl e timing mo de 0200 H 52 R etire d 020 0 H 53 Word s 54–58, 64–70 a nd 88 are valid 0007 H 54 Number of curren t logica l cylind ers xxxx H 55 Number of curren t logica l heads xxxx H 56 Number of curren t logica l sect ors ...
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Seagate ST380020A - page 34
U Series Fam ily Prod uct Manual , Rev. B 27 66 Recom mended multiw ord DMA tr ansfe r cycle t ime pe r wor d (120 nsec ) 0078 H 67 Minim um PIO cy cle time without IO RDY flow contr ol (240 nsec) 00F0 H 68 M inimu m PIO cy cle ti me wi th IORDY flo w control (120 nsec) 0078 H 69–74 ATA- reserved 0000 H 75 Queue de pth 0000 H 76–79 ATA- reserve ...
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Seagate ST380020A - page 35
28 U Se ries Family P roduct Manu al, Rev. B 92 Ma ster Pa ssword R evisio n code FFFE H 93 Hardware Reset Value (see de scription following this table) xxxx H 94 Auto A coustic M anagement Settin g xxxx H 95–127 ATA-re served 0000 H 128 Secur ity Stat us 0001 H 129–159 Seagate- reserved xxxx H 160–254 ATA-rese rved 0000 H 255 Integ rit y wor ...
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Seagate ST380020A - page 36
U Series Fam ily Prod uct Manual , Rev. B 29 3.1.3 S et Features command This comm and co ntrols the im plementat ion of variou s feature s that the drive su pports. Wh en the drive receiv es this com mand, it sets BSY, checks the conte nts of the Fe atures reg ister, clear s BSY a nd generates an interrup t. If the value in the register do es not ...
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Seagate ST380020A - page 37
30 U Se ries Family P roduct Manu al, Rev. B Note. At power-o n, or after a hardware or software reset, the default valu es of the fe atures are as indicat ed above. 0A H PIO mode 2 0B H PIO mode 3 0C H PIO mode 4 (default) 20 H Multiword DM A mode 0 21 H Multiword DM A mode 1 22 H Multiword DM A mode 2 40 H Ultra DMA mo de 0 41 H Ultra DMA mo de 1 ...
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Seagate ST380020A - page 38
U Series Fam ily Prod uct Manual , Rev. B 31 3.1.4 S.M.A.R.T. commands S.M.A. R.T. pr ovides ne ar-term failure p redicti on for dis c drives. When S.M.A. R.T. is enable d, the drive mon itors pred etermine d drive attrib utes that are susceptible to degradation over time. If self-mon itoring dete rmines that a fa ilure is likely , S.M.A.R. T. make ...
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Seagate ST380020A - page 39
32 U Se ries Family P roduct Manu al, Rev. B ...
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Seagate ST380020A - page 40
U Series Fam ily Prod uct Manual , Rev. B 33 ...
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Seagate ST380020A - page 41
34 U Se ries Family P roduct Manu al, Rev. B Seagate Technology LLC 920 Disc Dri ve, Scott s Valley, Calif ornia 950 66, USA Publication Number: 1001295 81, Rev. B, Printed in USA ...
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