Seagate ST373455SSIM manuale d’uso

Prod uct Ma nu al Ch ee t ah 15 K.5 SAS 10038 4784 Rev . E Aug ust 2007 ST33 00655S S ST31 46855S S ST37 3455SS[...]

©2007, S eagate T echnology LLC All righ ts reserv ed. Pub lication nu mber: 10038478 4, Rev . E Aug ust 2007 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. Cheet ah, SeaT ools and SeaT DD are either trade marks or reg - istered tr ademarks [...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E i Cont ent s 1.0 S cope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 S tandards, co m plian ce and reference do cuments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 S tan[...]

ii Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 6.4 E nvironmen tal limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.4.1 T e mperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.4.2 Relat ive humidity . . . . . . [...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 1 List o f Figur es Figure 1. Cheetah 15K.5 SAS disc driv e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. Typical ST3300655SS driv e +12V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

2 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 1 1.0 S cope This ma nual describes S eagate T echnolog y ® LLC, Cheet ah ® SAS (Se rial Att ached SCSI) di sc drives. Cheet ah drives support the SAS Protocol specificati ons to the exten t described in this manua l. The SA S Int e r- face Ma nual (part number 10029 3071) describes t he genera l SAS ch[...]

2 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 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. The drive d epends on i ts h ost equipment to provid e adequa te power and envi ronm ent for optimum perf ormance and compli ance with app[...]

4 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 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. The select ed sys- tem re present[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 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. T hese system s include sta ndar d oper at- ing proce dur es that ensure that restri cted substa nces are not ut[...]

6 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 7 3.0 General d escri ption Che et ah dr ives combi n e T unneling Ma gneto resis tive (T M R) head s and a Ser ial Att ach ed S CSI (SA S) inter face to pro vide hig h pe rformance, high cap acity d at a sto rage for a va riety o f system s includ ing en gineer ing workst a- tions, ne twork serve rs, mai[...]

8 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 3. 1 St a ndar d fea tu r e s Cheet ah drives have the foll owing st andard f eatures: • 1.5 / 3 Gb it Serial Att ached SCSI (SAS) interface • Integrat ed dual por t SAS control ler suppor ting the SCSI p rotocol • Suppo rt for S AS expander s and fanou t adapters • Firmw are down l oadab l e u[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 9 3.4 Reli abilit y • 1,400,00 0 hour MTBF (Ann ualized F ailure Rate (AF R) of 0.62% ) • 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 3.5 Fo rma tted ca paciti es S tan dard OEM mo dels are formatt ed to 512 bytes per bloc[...]

10 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 3.8 Optio ns ( factor y inst alled) Y o u may order the fo llowing items which are incor porated at the manufacturing facility dur ing production or packa ged before shippi ng. Some o f the options available a re (not a n exhaustive li st of possi ble options) : • Other cap acities can b e ordered d[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 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 Cheet ah drives. 4.1 Int e rnal dr ive ch arac terist i c s ST3300655SS ST3146855SS ST373455SS Drive capacity 300.0 146.8 73.4 Gbytes (formatted, rounded o[...]

12 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 4.2.2 For m a t command execution time (minut es) Executio n time measured from receipt of t he last byte of the Comman d Descriptor Block ( CDB) to the req uest for a S tatus B yte T ransfer to th e Initiat or (excluding connect/disconne ct). 4.2.3 Ge neral perf orma nce cha r ac teristic s 4.3 St a [...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 13 The S T ART S T OP U NIT comm and m ay be used to comm and the dr i ve to st op the spindl e. S top tim e is 30 sec- onds (m aximum) from r emoval of D C pow er . There is no po wer control sw itch on the drive . 4.4 P r ef etc h /m ult i-s eg m en ted ca che co nt ro l The d r ive provides a prefetch [...]

14 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 4.5.1 Cac hing write data W rite caching is a write operation by th e drive th at makes u se of a d rive buf fer stor age area where the da ta to be wri tten to the medi um is stored wh i le the drive pe rforms the W rite comman d. If rea d caching is en abled (RCD=0), then dat a written to th e me di[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 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. 5.1 E rror rates The er ror rat es stated[...]

16 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 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. If the er ror recovery process fails, a seek positionin g er ror (Err or code [...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 17 5.2. 3 Hot plugg ing the dr i ve When a disc is po wered on by switching the power or hot plugged, th e drive ru ns a self te st before attempting to com m unicat e on it s’ interfaces. When the self test completes successfully , the drive i nitiates a Link Reset star ting with OOB. An attached devic[...]

18 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 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. The er ror code is preser ved throug h bus reset s and power cycles. Deter mi[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 19 be use d to set this trip point. The d efault value for this drive is 68°C, however , you can set i t to any value in the range of 0 to 68°C. If you speci fy a tem perature gr eater than 68°C i n this fi eld, the temperature is roun ded down to 68 °C. A sense code is sent to th e host to indica te [...]

20 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 5.2.6.2. 1 S t ate of the dr ive prior to t esting The dr ive mu st be in a re ady state befor e issuing the Send Diagnosti c command. There ar e mult iple reasons why a drive may not be read y , some of which are valid conditio ns, and not erro rs. For example, a dri ve may be in process o f doi ng a[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 21 2. The Sel f-T est Result s V alue field is set to Fh 3. The dr ive will store the lo g page to non-volatile mem ory Af ter a self-test i s complete or has been ab orted, the drive upd ates the Self-T est Resul ts V alue field in its S elf- T est Results Log p age in non-volatile mem ory . The host may[...]

22 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 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 . V alues i[...]

24 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E Gen 1.5 data. 0.15A DC and 0.2A AC 1 2V max start current margin added. Gen 1.6 data. 0.15A DC and 0.2A AC 1 2V max start current margin added. [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 [...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 25 Degrees C ambien t. [2] For +12 V , a –10% toleran ce is allow ed during initial spindle st art but must return to ± 5% before reachi ng 15,000 RP M. The ±5% must be maintained afte r the drive signi fies that it s power-up seq uence has been complete d and that the dr ive is able t o accept select[...]

26 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E Figure 2. T ypical ST3300655SS drive +12V current profile Figure 3. T ypical ST3300655SS drive +5V current profile[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 27 Figure 4. T ypical ST3146855SS drive +12V current profile Figure 5. T ypical ST3146855SS drive +5V current profile[...]

28 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E Figure 6. T ypical ST373455SS drive +12V current profile Figure 7. T ypical ST373455SS drive +5V current profile[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 29 6. 3 Po wer di ssipat ion ST330065 5SS in 3 Gbit o peration T ypical power dissi pation under idle co nditions in 3Gb opera tion is 14.34 watt s (48.93 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 8). Lo cate the[...]

30 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E ST3146855SS in 3 Gb it operation T ypical power dissi pation under idle co nditions in 3Gb opera tion is 1 1.8 watts (40 .27 BTUs per h our). T o obtain oper ating power for typical rando m read operations, re fer to the following I/O rate curve ( see F igure 8). Lo cate the typical I/O rate for a dri[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 31 ST373455SS in 3 Gb it operation T ypical power dissi pation under idle co nditions in 3Gb opera tion is 10.33 watt s (35.25 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 8). Lo cate the typical I/O rate for a drive[...]

32 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 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 58.7°F (14.8°C) . Maximum we t bulb tempe rature i[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 33 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. Non -operating 5% to 95% non- condensing r elative humidity . 6.4.3 Effecti ve altitu de (sea le[...]

34 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E d. Packag ed Disc drives shipped as l oose lo ad ( not p alletized) general freig ht will be packag ed to withst and drop s 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.5 SAS Prod uct Manual, R ev. E 35 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 @ 0.5 G (ze ro to peak) V ibrat ion may be a pplied in the X , Y , or Z axis. Operati n[...]

36 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 6.4.7 A cous tics Soun d power du ring idle mod e shall be 3.7 bel s typical when measu red to ISO 7 779 specifi cation. So und power w hile operating sh all be 4.3 bels typ ical when m easured t o ISO 7779 specificat i o n. Ther e will not be any d i screte to nes more than 10 dB above the ma sking n[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 37 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. SCSI d efect and erro r management involves dr [...]

38 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E The drive firmware error recove ry algorithms consist s of 1 1 levels for re ad recoveries and five level s 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. The maximum le vel used by the drive in [...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 39 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. The Recei ve Diagno stic Result s report s the result[...]

40 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 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. Sites are marked for DAR during read oper- atio ns perfo rmed by the drive. Whe[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 41 8.0 Inst al lat ion Cheet ah disc dr ive inst allatio n is a plug-an d-play pr ocess. Ther e are no ju mpers, switche s, or termi nators on the dri ve. 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. In such [...]

42 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 8.2 Coolin g Cabi net coolin g must be d esigned by the custom er so that the a mbient temperat ure immed iately surroun ding the driv e will n ot exceed temper ature conditio ns specified in S ection 6.4.1, "T emperat ure." The rack, cabinet, or drawer envi ronmen t for the drive must pr ov[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 43 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. The allowable moun ting surface stiffne ss is 80 l[...]

44 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 45 9.0 Interface requ i rement s This sect i o n par tially de scribes the i nterface r equireme nts as impl emented on Cheet ah drive s. Additional infor- mation is p rovided in the SAS Inter face Manu al (par t number 10029 3071). 9.1 SA S feat ur es This secti on lists t he SAS-specific features suppor[...]

46 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 9.2 Dual port su pport Cheet ah SAS drive s have two i nd epen dent po rt s. Th ese por t s may be co nnecte d in the same or dif fere nt S CSI domains. Each drive port has a unique SAS addr ess. The two port s run at the same link rate. The first port to successfu l ly complete speed negotiation sets[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 47 9. 3 SC SI comm and s su ppor te d T able 8 list s the SCSI com mands supp orted by Chee tah drives . T able 8: Command s supp orted by Chee tah 15 K.5 SAS fami ly drive s Com m a nd na m e Com m a nd code Sup po rted Change D efini tion 40h N Comp are 39h N Cop y 18h N Cop y and V erify 3Ah N Form at [...]

48 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 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-test Results pag e (10h) Y Backg round Med ium Scan pa ge (15h) Y S tar t-stop Cycl e Counter p age (0Eh) Y T emperatur e page (0Dh) Y V erify Error Co [...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 49 Reassign B locks 07h Y Recei ve Diagnosti c Result s 1Ch Y Supp orted D iagnostic s pages ( 00h) Y T ranslate page (40h ) Y Release 17h Y Relea se (10) 57h Y Request S ense 03h Y Actual Re try Count byte s Y Extend ed Sense Y Fiel d Pointer bytes Y Reserve 16h Y 3rd P arty Reserve Y Extent Reservation [...]

50 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E [1] Cheet ah drives can format to 5 12, 520, 524, or 528 bytes pe r logical 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. [3] Refe rence Mod e Sense comma nd 1Ah for mo de pages supp orted. [4] Y = Y es. [...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 51 9.3.1 Inqu iry dat a T able 9 lis ts the In quiry command dat a that the dri ve shoul d return t o the initiator pe r the format given i n the SAS In terface Ma nual . T able 9: Cheet ah 15K .5 SAS inq uiry dat a * Copyright year (changes with actual y ear). ** SCSI Revision sup port. R efer to the app[...]

52 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E Select command be fore the drive a chieves oper ating spee d and i s “ready .” A n attem pt to d o so result s in a “Check Cond ition” sta tus. On dr ives requir ing unique saved values, the re quire d unique saved values are stored into the saved val - ues storag e locati on on the media prio[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 53 9.3.2.1 ST3 300655SS Mod e Sens e data MOD E DATA HE ADER : 03 f a 00 10 00 00 0 0 08 BLOC K DESCR IP TOR: 22 e c b2 5c 00 00 0 2 00 MODE PAG ES: DEF 81 0a c0 0b ff 00 00 00 05 00 ff ff CHG 81 0a ff ff 00 00 00 00 ff 00 ff ff DEF 82 0e 00 0 0 00 00 00 00 0 0 00 01 3a 0 0 00 00 00 CHG 82 0e 00 0 0 00 00[...]

54 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 9.3.2.2 ST3 146855SS Mod e Sens e data MOD E DATA HE ADER : 03 f a 00 10 00 00 0 0 08 BLOC K DESCR IP TOR: 11 1 7 73 30 00 00 0 2 00 MODE PAG ES: DEF 81 0a c0 0b ff 00 00 00 05 00 ff ff CHG 81 0a ff ff 00 00 00 00 ff 00 ff ff DEF 82 0e 00 0 0 00 00 00 00 0 0 00 01 3a 0 0 00 00 00 CHG 82 0e 00 0 0 00 0[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 55 9.3.2.3 ST3 73455SS Mode S e nse dat a MOD E DATA HE ADER : 03 f a 00 10 00 00 0 0 08 BLOC K DESCR IP TOR: 08 8 b b9 98 00 00 0 2 00 MODE PAG ES: DEF 81 0a c0 0b ff 00 00 00 05 00 ff ff CHG 81 0a ff ff 00 00 00 00 ff 00 ff ff DEF 82 0e 00 0 0 00 00 00 00 0 0 00 01 3a 0 0 00 00 00 CHG 82 0e 00 0 0 00 00[...]

56 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 9. 4 M iscel la neou s op erati ng fe at ures and con dit ions T able 10 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. T able[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 57 9.4.1 SAS physical interf ace Figure 16 shows the lo cation of th e SAS devi ce conn ecto r J1. Figur es 17 an d 18 pr ovide the d im ension s of the SAS device. 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 Seaga[...]

58 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E Figu re 17 . SAS c on nect or dimen 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 0.15 D 0.30 0.05 (2X) 41.13 0.15 B B C C A A 0.20 B 42.73 REF. C OF DATUM D L 1.10 R0.30 0.08 (4X) 2[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 59 Figu re 18 . SAS c on nect or dimen 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 Con tact you r preferre d connector m anufacturer for matin g part inform ation. Part numbers for SAS connectors will be provide d in a futu[...]

60 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 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. 9.4.5 Pin descriptio ns This secti on pro vides a p in-out of the S AS devi ce and a descri[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 61 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 19. The receiver is AC cou- pling to elimi nate groun d shif t noise. Figure 19. SAS transmitters and receivers 9.4.7 P ower The dr ive re ceives powe r (+5 volt s and +12 v[...]

62 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 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. See T able 14 for t he output ch aract[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 63 9.5.2.1. 2 Rec eive eye m ask Figure 20 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 .667). Figure 20. R[...]

64 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E The leading and tr ailing edge sl opes of figure 20 shall be preserved. As a result the a mplitude valu e of Z 1 is less than that given in table 17 and Z1 TO L and Z1 OP shall be defined from those slopes by the following equa- tion: where: Z1 TOL is the value for Z1 to b e used for the toler ance ma[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 65 9.5.2.2 T ran smitte r signa l characterist ics T able 16 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. The OOB sequence is perform ed at signal volt age [...]

66 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 9.5.2.3 Receiver signal cha racteri stics T able 1 7 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 23 a nd figure 24 . 9.5.2.3. 1 Jitter T able 18 d efines t he maximum allowable jitt er .[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 67 9.5.2.3. 2 Receiver jit ter to lerance T able 19 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. See the SAS Inte rface M[...]

68 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 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. This su[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 69 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. Th e tr[...]

70 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E Figure 24 shows the zero- l ength test load. Figu re 2 4 . Zer o-l engt h test loa d Figure 25 shows an ISI loss example at 3.0 Gbp s. Figure 25. ISI loss example at 3. 0 Gbps Figure 26 shows an ISI loss example at 1.5 Gbp s. Figure 26. ISI loss example at 1. 5 Gbps Tx + Tx - 10 n F 50 ohm 50 o hm P r[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 71 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 20. The rece iver operates within a B ER of 10 -12 when a SAS signal with val id volt age and timing char acte[...]

72 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 73 10.0 S eagat e T echnolo gy suppo r t service 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. Pre sales Su ppor t: Presa les@Seaga te.com T echni cal Supp or t: DiscSuppo[...]

74 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E 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. Reselle[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 77 Index Numerics 12 volt pin s 61 5 volt pins 61 A abort t ask set function 45 AC coup li ng 61 AC powe r requirem ents 23 ACA active status 56 ACA acti ve, faulted i nitiator st atus 56 acoustics 36 active LE D Out sign al 61 actuator assembly design 7 adaptiv e caching 5 6 AFR 9 air cl eanliness 35 air[...]

78 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E envi ronment 42 environm ental limits 32 requir ements 15 envi ronmenta l contro l 35 error manage ment 37 rat es 15 error s 37 F FCC rules and r egulations 3 feature s 8 interface 45 firmware 8 corrup tion 50 flawe d sector re allocation 8 Form at command executio n time 12 function complete , code 0[...]

Cheetah 1 5K.5 SAS Prod uct Manual, R ev. E 79 N noi se audi ble 3 noi se immunity 25 non-op erating 33 , 35 temper ature 32 non-op erating vibr ation 35 O offi ce environme nt 35 operat i n g 33 , 35 operat i n g environm ent 16 option sel ection 60 out-of- plane distorti on 43 P package size 34 package t est specification 5 packaged 34 param eter[...]

80 Cheetah 1 5K .5 SAS Produ ct Manual , Rev. E surface s tiffness allowa ble for non- flat surface 43 switches 41 synchron ized spindle operat i o n 56 system cha ssis 43 T task man agement functions 4 5 Abort task se t 45 Clear ACA 45 Clear task se t 45 termina te task 45 task man agement response codes 45 Function complete 00 45 Function not sup[...]

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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 00384784, Rev . E, Printed in U SA[...]