Manuale d’uso / di manutenzione del prodotto 2250 del fabbricante Seagate
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Marat ho n 2250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Marat ho n 1680 . . . . . . . . . . . . . . . . . . . . . . . . . .
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1997 Seagate Technology , I nc. All r ights r eserved Publicat ion Number: 36337-101, Rev. B, March 1997 Seagate, Seagate Technology and the Seagate logo are registered trademarks of Seagate Technology, Inc. Marat hon and SafeRite are trademarks of Seagate Technology.
Contents Int rodu c ti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Specificat ion summary tabl e . . . . . . . . . . . . . . . . . . . 2 1. 0 Dr ive s peci fi ca tion s . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Formatted c apacit y .
1.11.2 Electromagnetic Compatibili ty . . . . . . . . . . . . 15 1. 11.3 FCC v eri fi ca t ion . . . . . . . . . . . . . . . . . . . . 15 2. 0 Dr ive m oun ting a nd conf igur at i on . . . . . . . . . . . . . . 17 2.1 Handling and static - dis charge precautions .
Fig ur es Figure 1. Typical startup and operation current prof ile. . . . . . . . 9 Figure 2. Connector and m aster/s lav e jumper setup . . . . . . . . 18 Figure 3. Drive mounting dimensions—side and bot tom view. . . . 20 Figure 4. Drive mounting dimensions—end view .
vi Marathon 2250 and Marathon 1680 P roduct Manual.
In tr od uct ion The Marathon 2250 (ST92255AG) and Marathon 1680 (ST91685AG) provide ver y high storage c apacit y in a smal l, 17- mm hard di sc dri ve.
Spe cification summ ary t able The speci fications li sted i n this table ar e for qui ck refer ence. For details on a specif icati on measurement or def inition, see t he appropriate s ection of t his manual.
Drive Specificati on Marathon 2250 Marathon 1680 Power -on to ready (sec typic al) 3.5 Standby to ready (sec t ypical ) 2 Spinup cu rrent (pe ak) 1 .3 a mp s Read/W rit e power and cu rrent (typi ca l) 2.5 wat t s, 0. 5 am ps Seek po wer an d cur ren t (ty pical ) 2.
4 Marathon 2250 and M arathon 1680 Product M anual.
1.0 D ri ve specif icatio ns Unless otherwise not ed, all specif ic ati ons are measured under ambient conditions , at 40°C, at sea l evel and nominal power. 1. 1 Fo rm a tt ed ca p acity Marathon 2250 Marathon 1680 Guaranteed K bytes 2,250,209 1,680,634 Guaranteed s ectors (LBA m ode) 4,394,940 3,282,490 Bytes per sector 512 512 Note .
The Marathon 1680 supports any translation geometry that sati sfies all of t he following c onditions: • Secto rs pe r trac k ≤ 63 • Read/wri te heads ≤ 16 • (Sec tors p er tr ack) × (read/writ e heads) × (cylinders) ≤ 3,282,048 1.2 Phy sica l organi zati on Marathon 2250 Marathon 1680 Read/Writ e heads 10 8 Discs 5 4 1.
1.4 Phy sical ch aract eristi cs Marathon 2250 Marat hon 1680 Maximum height (inches) (mm) 0.676 (17.2) 0.676 (17.2) Maximum widt h (inches) (mm) 2.76 (70.1) 2.76 (70.1) Maximum lengt h (inches) (mm) 3. 955 (100.45) 3.955 (100.45) Typical weight (ounces) (gram s) 7.
1.6 Sta rt ti mes Power-on t o Ready ( sec) 3.5 t ypical, 7 max Standby to Ready (sec) 2 typical, 3 max Idle to Ready (sec) 0.4 max 1.7 Pow er spe cif icat io ns The dri ve receives DC power (+5V) through pin 41 and pin 42 of the AT interface c onnector.
1. 7. 1 . 1 T yp i ca l cu rr e n t pro fil e Figure 1 shows a projec ted dri ve startup and operati on current profil e for the Marat hon 2250 and t he Mar athon 1680. Note . The peaks in F igure 1 are t he result of inductive kickback from the commutat ion of the spindle motor and, therefore, do not draw power from the battery.
• 100 mV peak-to-peak triangular -wave injected noise at the power connector. The frequency is 100 K Hz to 10 MHz with equivalent resistive l oads. Note . Equivalent resistanc e (9.26 ohms) is calculated by dividing the nominal voltage (5V) by the typical RMS read/ write current ( 0.
When the st andby timer ex pires, t he drive makes t he transit ion t o the Standby mode. The drive requir es approxi mately 100–200 msec to return to Active mode from I dl e mode. Stan dby mode. T he dri ve ente rs S tandb y mode when the h ost send s a Stand by or St and by I mmed iate c o mmand.
1.8 Env ironmen tal to leran ces 1.8 .1 Am bie nt t emperatu re Operating 5° t o 55°C ( 41° t o 131°F) Nonoperating –40° to 70° C (–40° to 158° F) Caution.
Note . At power-down, the read/wri te heads aut omati cally move t o the shippi ng zone. The head and slider ass embly park inside of the maximum data cylinder .
1.8. 6.2 Nonop erati ng vib ratio n The following table lists the max i mum nonoperating vibration that the drive may exper ience without incur ring physical damage or degradation in performance. 5–22 Hz 0.2-i nch displacement (peak-to-peak ) 22–400 Hz 4 Gs acceleration (0 to peak) 400–22 Hz 4 Gs acceleration (0 to peak) 22–5 Hz 0.
1.11 Ag enc y cert ificat ion 1.11.1 Safet y cert ificat ion The dri ve is recogni zed in acc ordance with UL 1950 and CSA C22.2 (950-M89) and meets all applicable sections of IEC 380, I EC 435, IEC 950, VDE 0806/08. 81 and E N 60950 as t ested by T UV-Rheinl and, North America.
This equipment is designed to provide reasonable protection agains t such int erference in a r esident ial i nstallation. However, there is no guarantee that i nterference wi ll not occur in a part icular ins tallati on.
2.0 Dr ive m ount ing and co nfigur at ion 2.1 Han dl ing and sta tic -d isch ar ge pr ecau ti on s After unpacking, but before ins tallation, the drive may be exposed to potential handli ng and ESD hazards. You must observe st andard stati c- discharge pr ecautions.
Jumper for pi ns A and B Jumper for pi ns C and D Config ur a t io n Off Of f Drive is master; slave dr ive may be detected using DASP– signal. CSEL is ignored. Off On Dri ve is mas ter; s lave driv e i s present. CSEL is ignored. DASP– is i gnored.
2.3 Rem ote L ED co nfigu ratio n The drive indicates activity to the host through the DASP– line (pin 39) on the ATA interface. This line m ay be connected to a dr ive status indicator driving an LED at 5V. The line has a 30 mA nominal current limit ; however, most external LEDs are suffi ciently bright at 15 mA.
A26 thread, 4PLC min A38 full thread center within A27 of position specified A7 A29 A28 A23 A21 ± A22 A6 (to end of HDA) A30 A31 A24 A25 A4 ± A5 (width at mounting holes) A32 thread, 4PLC min A41 fu.
Mount i ng dim e n s ion speci f ica t io ns Dim. Description inches mm A1 Drive height 0.668 16.97 A2 + tolera nce on drive heig ht 0.008 0.20 A3 – tolera nce on drive heig ht 0.008 0.20 A4 Drive width at m ount i ng ho les 2.750 69.85 A5 + and – t oler anc e on drive width a t m oun ting h oles 0.
Mount i ng dim e n s ion speci f ica t io ns Dim. Description inches mm A1 6 Allowable range, si de-to-side, pi ns w ithin connector 0. 0 0 3 0. 0 8 A17 Pin top-to- bot t om dime nsi on 0.020 0.50 A18 + and – toler anc e on pin top- to -bo ttom dim ensi on 0.
2.5 ATA inter face c onnec tor The drive connector is a 44-conductor connector with 2 rows of 22 male pins on 0.079-i nch (2 mm) centers (see Figure 4 on page 21 and F igure 5). The mating cable c onnector is a 44-conductor, nonshielded c onnector with 2 rows of 22 f emale contac ts on 0.
24 Marathon 2250 and Marathon 1680 P roduct Manual.
3.0 A TA At tach m ent -3 Inter fac e (AT A-3) The dri ves in thi s manual comply wit h t he ATA-3 Standard, pr oposed by the X3T10 com mittee, a T echnical Commit tee of Accredited St andards Committee X3, of the A meric an National Standards Institut e (ANSI).
Reset – Ground DD7 DD8 DD6 DD9 DD5 DD10 DD4 DD11 DD3 DD12 DD2 DD13 DD1 DD14 DD0 DD15 Ground (removed) DMARQ Ground DIOW – Ground DIOR – Ground IORDY CSEL DMACK – Ground INTRQ IOCS16 – DA1 PD.
3.2 ATA Inter face c ommands 3.2. 1 Su ppor ted AT A command s The following table lists supported ATA-standard and Seagate-s pecific drive commands. For a detailed descript ion of t he ATA c ommands, refer to the Draft Pr oposed ATA-3 Standard. See Secti on 3.
Command n ame Command code Sup port ed by Marathon 2250 and Marathon 1680 Execut e S.M .A. R.T Co mm a nd B0 H Yes Wr ite Bu ffe r E8 H Yes Write D MA (w/r etry) CA H Ye s Wri te DMA (no r etr y) CB H.
The foll owing commands contain drive-spec ific features that may not be descri bed in the Draft Proposed ATA-3 Standard . 3.2. 2 Iden ti fy Driv e command The Identify Dr ive command (command code EC H ) transfer s information about the drive to the host foll owing power-up.
Word Descri ption Contents 27–46 Drive model number: (40 AS CII char acters, padded wit h blanks to end of string) ST 92 25 5AG or ST91 68 5AG 47 Maximum sec tors per interrupt on read/ write multip.
Word Descri ption Contents 65 Minimum multiword DMA tr ansfer cycl e time per word (120 nsec) 0078 H 66 Recommended multiword DMA transf er cycle t ime per word (180 ns ec) 0078 H 67 Minimum PIO cycle.
3.2. 3 Set Feat ures c omman d This command controls the implementation of various features that the drive supports. When the drive receives this command, it sets BSY, checks t he contents of the Featur es registe r, clears BSY and generat es an interrupt .
99 H Not implemented 9A H Not implemented AA H Enable read look-ahead (read cac he) feature (default) AB H Not implemented BB H 4 bytes of E CC apply on read l ong and wri te long c ommands (default) CC H Enable reverting to power-on defaults (default) At power-on or after a hardware reset, the default values of the features are as indicated above.
3.2.4 S.M .A.R. T. commands Self-Monit oring, Analysi s and Reporting T echnology ( S.M.A.R.T.) is an emerging technology that provides near-term fail ure prediction for disc drives. When S. M.A.R.T. i s enabled, the Seagate dr ive monitors prede- termined driv e attributes t hat are susceptible to degradati on over time.
3.2 .5 Drive -S ecu ri ty comma nd s The drive-security commands provide a password-bas ed security sys- tem to prevent unauthorized access to a disc drive. During manufacturing, the master password, SEAGATE, is set for t he drive, and the lock f unction is disabled.
36 Marathon 2250 and Marathon 1680 P roduct Manual.
Appendix . Compa tibility notes ECC testin g When a M arathon 2250 or Mar athon 1680 perfor ms hardware-based ECC error correct ion on-t he-fly, the dr ive does not repor t an E CC error . This allows ECC cor rection wit hout degradi ng drive per formance.
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Sea gat e T ec hnol ogy, I nc. 920 Disc Drive, Scotts Val ley, California 95066, USA Pub l ic at io n Nu mbe r: 3633 7-1 01 , R ev. B, Pr int e d in U SA.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Seagate 2250 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Seagate 2250 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Seagate 2250 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Seagate 2250 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Seagate 2250, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Seagate 2250.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Seagate 2250. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Seagate 2250 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
