Seagate ST33000651SS manuale d’uso

Product Manual Constellation ® ES.2 SAS 100628615 Rev . D April 201 1 St andard Model ST33000650SS Self-Encrypting Drive Model ST33000651SS SED FIPS 140-2 Model Review Pending ST33000652 SS[...]

Revision history © 201 1, Seagate T echnology LLC All ri ghts reserved. Publication number: 1006 28615, Rev . D April 201 1 Seagate, Seagate T echnology and the W ave logo ar e regi stered trademarks of Seagate T echnology LLC in the United S tates and/or other coun trie s. Constellation ES.2 and SeaT ools are either trade - marks or registered tr[...]

Constellation ES.2 SAS Product Manual, Rev. D i Content s 1.0 Seagate Technology support services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3.0 [...]

ii Constellation ES.2 SAS Product Manual, Rev. D 7.4 Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 7.5 Environmental limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 7.5.1 Temperature . . . . . [...]

Constellation ES.2 SAS Product Manual, Rev. D iii 12.4.1 SAS physical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 12.4.2 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 12.4.3 Connector requirements. . . . . . . . . . . . . . .[...]

iv Constellation ES.2 SAS Product Manual, Rev. D[...]

Constellation ES.2 SAS Product Manual, Rev. D v List of Figures Figure 1. 3TB model current profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 2. 3TB models (3Gb) DC current and power vs. input/output operations per second. . . . . . . . . . . . . . . . . . [...]

vi Constellation ES.2 SAS Product Manual, Rev. D[...]

Constellation ES.2 SAS Product Manual, Rev. D 1 1.0 Seagate T echnology support services SEAGA TE ONLINE SUPPORT and SERVICES For information regarding pr oducts and services, visit http://www .sea gate.com/www/en-us/ about/contact_us/ Available ser vices include: Presales & T echnical support Global Support Services telephone nu mbers & bu[...]

2 Constellation ES.2 SAS Produc t Manual, Re v. D 2.0 Scope This manual describes Se agate T echnology ® LLC, Constellation ® ES.2 SAS (Serial Attached SCSI) disk drives. Constellation ES.2 drives support the SAS Protocol specifications to the ex tent described in this manual. The SAS Interface Manual (part number 10 0293071) describes the gen er[...]

Constellation ES.2 SAS Product Manual, Rev. D 3 3.0 Applicable st andards an d reference docume ntat ion The drives documented in this manual have been developed a s system per ipher als to th e hi ghest st andards of design and construction. The drives depends on host equipment to prov ide adequate power and environment for optimum performan ce an[...]

4 Constellation ES.2 SAS Produc t Manual, Re v. D 3.1.2 Electromagnetic complian ce Seagate uses an in dependent laboratory to confirm comp liance with the directives/standards for CE Marking and C-T ick Marking. The drive was tested in a repres entative system for typ ical applications. The selected system represents the most popular characteristi[...]

Constellation ES.2 SAS Product Manual, Rev. D 5 3.1.3 European Union Restriction of Hazardous Su bstances (RoHS) The European Union Restriction of Hazardous Subst anc es (RoHS) Directive, restrict s the presence of chemical substances, inclu ding Le ad, Cadmium, Mercury , Hexavale nt Chromium, PBB and PBDE, in electronic pro duct s, ef fective July[...]

6 Constellation ES.2 SAS Produc t Manual, Re v. D 3.2 Reference document s SAS Interfac e Manual Seagate p art number: 10 0293071 SCSI Commands Reference M anual Seagate p art number: 10 0293068 Self-Encrypting Drives Reference Manual Seagate p art number: 10 0515636 ANSI SAS Documents SFF-8323 3.5” Drive Form Fa ctor with Serial Connecto r SFF-8[...]

Constellation ES.2 SAS Product Manual, Rev. D 7 4.0 General description Constellation ES.2 drives provide high pe rformance, high capacity data storage for a variety of systems including engin eering workstations , network servers, mainframes, and supe rcomputers. The Serial Att ached SCSI interface is designed to meet next-generation computin g de[...]

8 Constellation ES.2 SAS Produc t Manual, Re v. D 4.1 St andard features Constellation ES.2 drives have the following standard features: • Perpendicu lar recording techno logy • 1.5 / 3.0 / 6.0 Gb Serial Attached SCSI (SAS) interfac e • Integrated dual port SAS controller suppor ting the SCSI protocol • Support for SAS exp anders and fanout[...]

Constellation ES.2 SAS Product Manual, Rev. D 9 4.4 Reliability • Annualized Failure Rate (AFR) of 0.73% • Mean time betw een failures (MT BF ) of 1,200,000 hours • Balanced low mass rotary voice coil actuator • Incorporat es industry- standard Self-Monit oring Analysis and Reporting T echnology (S.M.A.R.T .) • 5-year warran ty 4.5 Format[...]

10 Constellation ES.2 SAS Product Manua l, Rev. D 5.0 Performance characteristics This section provides det ailed information concerning pe rformance-related characte ristics and featur es of Constellation ES.2 drives. 5.1 Internal drive characteristics ST33000650SS ST33000651SS ST33000652SS Drive capacity 3 TB (formatted, rounded off value) Read/w[...]

Constellation ES.2 SAS Product Manual, Rev. D 11 5.2.2 Format command exec ution time for 512-byte se ctors (minutes) ST33000650SS ST33 000651SS ST33000652SS Maximum (with verify) 827 Maximum (without verify) 402 Note. Th ere is approximately a 1.5 increase in time to format a SED drive versus a non-SED drive of the same capacity . 5.2.3 Ge neral p[...]

12 Constellation ES.2 SAS Product Manual , Rev. D 5.4 Prefetch/multi-segmented cache control The drive provides a prefetch (read look-ahead) and mu lti-segmented cache control algorithms that in many cases can enhance system performance . Cache refers to the drive buf fer storage space when it is used in cache operations. T o select this feature, t[...]

Constellation ES.2 SAS Product Manual, Rev. D 13 5.5.1 Caching write dat a Write caching is a write op eration by the dr ive that m akes us e of a driv e buffer storag e area where th e data to be written to the med ium is stored while the drive performs the Write comm and . If read cach ing is enabled ( RCD=0), th en data written to th e medium is[...]

14 Constellation ES.2 SAS Product Manual , Rev. D 6.0 Reliability specifications The following reliability specifications assume correct host and drive ope rational interface, including all interface timings, power supply voltages, environment al requirem ents and drive mounting constrain ts. 6.1 Error rates The error rates st ated in this manual a[...]

Constellation ES.2 SAS Product Manual, Rev. D 15 6.1.3 Seek errors A seek error is defined as a failure of the drive to posi tion the heads to the addressed track. Af ter detecting an initial seek error , the drive automatically performs an er ror recovery process. If the error reco very proces s fails, a seek positioning error (E rror code = 15h o[...]

16 Constellation ES.2 SAS Product Manual , Rev. D Caution. The drive motor must come to a complete stop prior to changing the plane of operation. This time is required to insure dat a integrity . 6.2.4 S.M.A.R.T . S.M.A.R.T . is an acronym for Self-Monitoring Analysis and Reporting T e chnology . This technology is intended to recognize conditions [...]

Constellation ES.2 SAS Product Manual, Rev. D 17 S.M.A.R.T . measures error rates. All errors for each mo nitor ed attribute are recorded. A counter ke eps track of the number of erro r s fo r the current interval. Th is counter is referred to as the Failure Counter . Error rate is the number of er rors per op eration. The algorith m that S.M.A.R.T[...]

18 Constellation ES.2 SAS Product Manual , Rev. D 6.2.6 Driv e Sel f T est (DST ) Drive Self T est (DST) is a technology designed to recogn ize drive fault conditions th at qualify the drive as a failed unit. DST validates the functi onality of the drive at a system level. There are two test coverage op tions implemented in DST : 1. Extended test 2[...]

Constellation ES.2 SAS Product Manual, Rev. D 19 6.2.6.2. 3 Short a nd exten ded tes t s DST has two testing options: 1. short 2. extended These testing options are describ ed in the following two subsections. Each test consists of three segment s: an electrical te st segment, a servo test segment, and a read/verify scan segment. Short test (Functi[...]

20 Constellation ES.2 SAS Product Manual , Rev. D 6.2.7 Pro duct warra nty See Section 1.0 for warranty con tact information. Shipping When transporting or shipp ing a drive, use only a Seaga te-approved container . Keep your original box. Sea- gate approved cont ainers are easily identified by the Seagate Appro ved Package label. Shipping a drive [...]

Constellation ES.2 SAS Product Manual, Rev. D 21 7.0 Physical/electrical specifications This section provides information relating to the physical and electrical char acteristics of the drive. 7.1 PowerChoice TM power manageme nt Drives using the load/unload arch itecture prov ide programmable power manag ement to tailor systems for performance and[...]

22 Constellation ES.2 SAS Product Manual , Rev. D 7.1.1 PowerChoice reporting methods PowerChoice TM provides these reporting me thods for trackin g purposes: Request Sense command report s • Current power conditio n • Method of en try Note. Processing the Request Sense command does not impact the drive ’s power save state. Mode Sense command[...]

Constellation ES.2 SAS Product Manual, Rev. D 23 [1] Measured with aver ag e re ad in g DC am m et er . [2] Instant aneous +12V current pe ak s will exceed these values. [3] Power supply at nomina l voltage. N (number of dr ives tested) = 6, 35 Degrees C ambient. [4] For +12 V , a –10% t olerance is a llowed during initial spindle start but must [...]

24 Constellation ES.2 SAS Product Manual , Rev. D [5] See +12V curr ent profile in Figure 1. [6] This condition occurs after OOB and S peed Negotiation comple tes but before the drive has received the Notify S pinup primitive. [7] See paragr aph 7.3.1, "Cond ucted noise immunity ." S pecified voltage tolerance includ es ripple, noise, and[...]

Constellation ES.2 SAS Product Manual, Rev. D 25 7.3.3 Current profiles The +12V (top) and +5V (bottom) curre nt profiles fo r the Constellation ES drives are shown belo w . Figure 1. 3TB m odel current profiles Note: All times and currents are typical. See T able 2 for maximum current requireme nts.[...]

26 Constellation ES.2 SAS Product Manual , Rev. D 7.4 Power dissip ation 3TB models in 3Gb operation Please refer to T able 2 for power dissipatio n num bers. T o obtain operatin g power for typical random read oper atio ns, refer to the f ollowing I/O rate curv e (see Figure 2). Locate the typical I/O ra te for a drive in your system on the horizo[...]

Constellation ES.2 SAS Product Manual, Rev. D 27 3TB models in 6Gb operation Please refer to T able 2 for power dissipa tion numbers. T o obtain operatin g power for typical random read oper atio ns, refer to the following I/O rate curve (see Figure 3.). Locate the typical I/O r ate for a drive in your syst em on the horizontal axis and re ad the c[...]

28 Constellation ES.2 SAS Product Manua l, Rev. D 7.5 Environment al limit s T emperature and humidity values experienced by the driv e must be such that condens ation does not occur on any drive part. Altitude and atmospheric pressure specif ica tions are referenced to a standard day at 58.7° F (14.8°C). M aximum wet bulb temper ature is 82° F [...]

Constellation ES.2 SAS Product Manual, Rev. D 29 7.5.3 Effective altitude (sea level) a. Operating –1000 to +10,000 fe et (–304.8 to +3,048 meters) b. Non-operatin g –1000 to +40,000 feet (– 304.8 to +12,192 meters) 7.5.4 Shock and vibration Shock and vibration limits specified in this document are mea sured directly on the drive chassis. I[...]

30 Constellation ES.2 SAS Product Manua l, Rev. D d. Packaged disk drives shipped as lo ose load (not palletized) ge neral freight will be packaged to withst and drops from heights as define d in the table below . For additional deta ils refer to Seagate specifications 30190- 001 (under 100 lbs/45 kg) or 30191-001 (over 10 0 lbs/45 Kg) . Package si[...]

Constellation ES.2 SAS Product Manual, Rev. D 31 7.5.4.2 Vibration a. Operating—normal The drive as inst alled for normal operation, shall comply with the c omplete sp ecified performance while subjected to continuous vi bration not exceeding 5 - 22 Hz 0.25 Gs, limited displacement 22 - 350 Hz 0.5 Gs 350 - 500 Hz 0.25 Gs Vibr ation may be applied[...]

32 Constellation ES.2 SAS Product Manual , Rev. D component s should never be exposed to conde nsing water on the surface of the print ed circuit board assembly (PCBA) or exposed to an ambient relative humidity gr eat er than 95%. Materials used in cabinet fabrication, such as vulcaniz ed rubber , that c an outgas corro s ive compounds should be mi[...]

Constellation ES.2 SAS Product Manual, Rev. D 33 7.6 Mechanical specifications Refer to Figure 6 for det ailed mounting configuratio n dime nsions. See Section 1 1.3, “Drive mounting.” Note. These dimensions conform to the Small Form Factor S tandard documented in SFF-83 01 and SFF-8323, found at www .sffcommittee.or g . Breather Hole mm in mm [...]

34 Constellation ES.2 SAS Product Manual , Rev. D 8.0 About FIPS The Federal Inform ation Processing S tandar d (FIPS) Publication 140-2, FIPS PUB 140-2, is a U.S. government computer secu rity standard used to accr edit cryptographic modules. It is titled “S ecurity Requirement s for Cryptographic Modul es”. The initia l publication was on May[...]

Constellation ES.2 SAS Product Manual, Rev. D 35 9.0 About self-e ncrypting drives Self-encrypting drive s (SEDs) offer encryption and se curity services for the pr otection of stored dat a, commonly known as “protectio n of dat a at rest.” Thes e drives are compliant with the T rusted Computing Group (TCG) Enterprise S torage S pecificat ions [...]

36 Constellation ES.2 SAS Product Manual , Rev. D 9.2.3 Default p assword When the drive is shipped from the factory , all passwor ds are set to the value of MSID. This 32-byte random value is printed on the drive label an d it can be read by the host electronically over the I/O. After receipt of the drive, it is the respon sibility of the owner to[...]

Constellation ES.2 SAS Product Manual, Rev. D 37 9.7 Authenticated firmware do wnload In addition to providing a locking mechanism to preven t unwante d firmware do wnload a ttempts, the drive also only accepts download files which have been cryptographically signed by the appropriate Sea gate Design Center . Three conditions must be met before the[...]

38 Constellation ES.2 SAS Product Manual , Rev. D 10.0 Defect and er ror management Seagate continues to use innova tive technologies to manage defects and er rors. These technologies are designed to increase dat a integrity , perform drive self-maintenance, and validat e proper drive operation. SCSI defect and error management involves dr ive in t[...]

Constellation ES.2 SAS Product Manual, Rev. D 39 T able 3 equates the r ead and write retry count with th e maximum possible recovery time for read and write recovery of individual LBAs. The times given do not incl ude time t aken to perform reallocations. Reallocations are perform ed when the ARRE bit (for reads) o r A WRE bit (for writes) is one,[...]

40 Constellation ES.2 SAS Product Manual , Rev. D With BMS, the host system can cons ume less power and system overhe ad by only checking BMS status and results rather than ty ing up the bus and consuming po wer in the proc ess of host-in itiated media scanning activity . Since the background scan functions are only done during idle periods, BMS ca[...]

Constellation ES.2 SAS Product Manual, Rev. D 41 10.8 Protection Information (PI) Protection Information is intended as a sta ndardized ap proach to system level LRC traditionally provided by systems usin g 520 byte form atted LB As. Drives formatted with PI information provide the same , common LBA count (i.e. same capacity point) as non-PI format[...]

42 Constellation ES.2 SAS Product Manual , Rev. D 1 1.0 Installation Constellation ES.2 disk drive inst allation is a plug-and- play proc ess. There are no jump ers, switches , or terminators on th e dr ive . SAS drives are designed to be used in a host system that provides a SAS-compatible backplane with bays designed to accommo date the drive. In[...]

Constellation ES.2 SAS Product Manual, Rev. D 43 1 1.2 Cooling Cabinet cooling must be desig ned by the customer so that the ambient te mperature immediately surrounding the drive will not exceed temperat ure conditions specified in Section 7.5.1, "T emperature." The rack, cabinet, or drawer envir onment for the driv e must provide heat r[...]

44 Constellation ES.2 SAS Product Manua l, Rev. D 1 1.3 Drive mounting Breather Hole Do Not Cover Mount the drive usin g the bottom or side mounting hole s . If you mount the drive using the bottom holes, e nsure that you do not physica lly distort the drive by at tempting to mount it on a stif f, no n-flat surface. The allowable mountin g su rface[...]

Constellation ES.2 SAS Product Manual, Rev. D 45 12.0 Interface requirement s This section partially describes th e in terface requirements as imp lem ented on Constellation ES.2 drives. Additional information is provided in the SAS Interface Man ual (part number 100293071) . 12.1 SAS features This section lists the SAS-spec ific features supported[...]

46 Constellation ES.2 SAS Product Manual , Rev. D 12.2 Dual port support Constellation ES.2 SAS drives have tw o independent ports. T hese ports may be connec ted in the same or different SCSI domains. Each drive port has a unique SAS address. The two ports have the capabilit y of independent port clocki ng (e.g. both ports can run at 6Gb/s or the [...]

Constellation ES.2 SAS Product Manual, Rev. D 47 12.3 SCSI commands supported T able 6 lists the SCSI commands supported by Constellation ES.2 drives. T able 6: Supported commands Command name Command code Supported Change Definitio n 40h N Compare 39h N Copy 18h N Copy and V erify 3Ah N Format Unit [1] 04h Y DCRT bit supported Y DPRY bit supported[...]

48 Constellation ES.2 SAS Product Manual , Rev. D Information Exception s Log page (2Fh) N Last n Deferred Errors or Asyn chronous Events pag e (0Bh) N Last n Error Events p age (07h) N Non-medium Er ror page (06 h) Y Pages Supported list (00h) Y Read Error Counter p age (03h) Y Read Reve rse Error Coun ter page (04h) N Self-test Result s p age (10[...]

Constellation ES.2 SAS Product Manual, Rev. D 49 Read Buffer (modes 0, 2, 3, A h and Bh su pported) 3Ch Y (non -SED drives only) Read Cap acity (10) 25h Y Read Cap acity (1 6) 9Eh/10h Y Read Defect Data (10) 37h Y Read Defect Data (12) B7h Y Read Long 3Eh Y (non-SED dr ives only) Read Long (16) 9Eh/1 1h Y Reassign Bl ocks 07h Y Receive Diagnostic R[...]

50 Constellation ES.2 SAS Product Manual , Rev. D [1] Constellation ES.2 dri ves can format to 512, 520 or 528 bytes per logical block. [2] Wa r n i n g . Power loss during fla sh programming can result in firmware corruption . This usually mak es the drive inoperable. [3] Reference Mode Sense command 1Ah for mode p ages supported. [4] Y = Y es. Co[...]

Constellation ES.2 SAS Product Manual, Rev. D 51 12.3.1 Inquiry data T able 7 lists the In quiry command data that the drive should return to the initiator per the format given in the SAS Interfac e Manual . T able 7: Constellation ES.2 inquiry dat a Bytes Data (hex) 0-15 00 00 xx** 12 8B 00 30 02 53 45 41 47 41 54 45 20 V endor ID 16-31 [53 54 33 [...]

52 Constellation ES.2 SAS Product Manual , Rev. D On drives requiring unique sa ved values, the required unique saved values are stored into the save d val - ues storage location on the media prior to shipping the dr ive. Some drives may have unique firmware with unique default values also. On standard OEM drives, the saved values are t aken from t[...]

Constellation ES.2 SAS Product Manual, Rev. D 53 T able 8: Mode Sense dat a changeable and default values f or 3TB drives MODE DATA HEADER: 01 9a 00 10 01 00 00 10 BLOCK DESCRIPTOR: 00 00 00 01 5d 50 a3 b0 00 00 00 00 00 00 02 00 MODE PAGES: DEF 81 0a c0 14 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 00 00 00 00 00 [...]

54 Constellation ES.2 SAS Product Manual , Rev. D 12.4 Miscellaneous operating fe atures and conditions T able 9 lists various features and conditions. A “Y” in the support column indicates the feature or condition is supported. An “N” in the support column indicates the feat ure or condition is not supported. T able 9: Miscellaneous featur[...]

Constellation ES.2 SAS Product Manual, Rev. D 55 12.4.1 SAS physical interfac e Figure 10 shows the location of the SAS device connector J1. Figures 1 1 and 12 provide the dimensions of the SAS connector . Details of the physical, electrical, an d logical characteristics are provided wi thin this section. The operational aspects of Seagate’ s SAS[...]

56 Constellation ES.2 SAS Product Manual , Rev. D Figure 1 1. SAS device plug d imensions 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.[...]

Constellation ES.2 SAS Product Manual, Rev. D 57 Figure 12. SAS device pl ug dimensio ns (detail) 6.10 Detail A 0.30 0.05 x 45 (5X) 0.40 0.05 X 45 (3X) CORING ALLOWED IN THIS AREA. 2.25 0.05 4.85 0.05 0.10 B E S14 S8 4.40 0.15 SEE Detail 2 3.90 0.15 SECTION A - A SECTION C - C A 0.35 0.05 45 R0.30 0.08 C 1.95 0.08 0.08 0.05 1.23 0.05 0.08 0.05 Deta[...]

58 Constellation ES.2 SAS Product Manua l, Rev. D 12.4.2 Physical characterist ics This section defines phys ical inter face co nnector . 12.4.3 Connector requirement s Contact your prefe rred connector manufacturer for mati n g par t information. Part numbers for SAS connectors will be provided in a future revision of this publication when product[...]

Constellation ES.2 SAS Product Manual, Rev. D 59 12.4.6 SAS transmitte rs and receivers A typical SAS dif ferential copper transmitter and receiver pair is shown in Figure 13. The receiver is AC coupling to eliminate gr ound shift noise. Figure 13. SAS transmitters and rec eivers 12.4.7 Power The drive receives power (+5 volts and +12 volts) throug[...]

60 Constellation ES.2 SAS Product Manual , Rev. D The Ready LED Out signal is designed to pu ll down t he cathode of an LED. T he anode is attached to th e proper +3.3 volt supply through an approp riate current limiting resistor . The LED and the current limiting resistor are external to the drive. See T able 13 for the output char acteristics of [...]

Constellation ES.2 SAS Product Manual, Rev. D 61 Index Numerics 12 volt pins 59 5 volt pins 59 6 Gbps 60 A abort task set function 45 AC coupling 59 AC power requirements 22 ACA active status 54 ACA active, faulted initiator status 54 acoustics 31 active LED Out signal 59 actuator 9 assembly desig n 7 adaptive caching 54 Admin SP 35 AES-128 data en[...]

62 Constellation ES.2 SAS Product Manual , Rev. D description 7 DFE 60 dimensions 33 disc rota tion speed 10 drive 31 drive characteristics 10 Drive Locking 36 drive mounting 33 , 44 drive select 58 dual port support 46 E electrical description of co nn e cto r 58 signal characteristics 59 specifications 21 electromagnetic compatibility 3 Electroma[...]

Constellation ES.2 SAS Product Manual, Rev. D 63 L latency average rotational 10 , 11 Locking SP 35 LockOnReset 36 logical block address 12 logical block reallocation scheme 8 logical block size 8 , 11 logical segments 12 M maintenance 14 Makers Secure ID 35 maximum delayed motor start 23 maximum start current 23 mean time betw ee n fa ilur e. See [...]

64 Constellation ES.2 SAS Product Manual , Rev. D Q queue tagging 54 R radio interf erence reg ulation s 3 Random num be r ge ne r at or 3 6 RCD bit 12 read erro r rates 1 4 , 38 read/write data heads 10 receivers 59 recommended m ounting 30 Recoverable Errors 14 recovered me d ia da ta 14 reference documents 6 relative humidity 28 reliability 9 sp[...]

Constellation ES.2 SAS Product Manual, Rev. D 65 Type 2 PI format 41 U unformatted 9 Unrecoverable Errors 14 unrecovered media data 14 V vibration 29 , 31 W warranty 20 Z zero latency read 54[...]

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Seagate T echnology LLC 920 Disc Drive, Scotts V alley, California 95066 -4544, USA Publication Number: 1006 28615, Rev . D[...]