Manuale d’uso / di manutenzione del prodotto ST9900805FC del fabbricante Seagate
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Product Manual Savvio ® 10K.5 FC 100628563 Re v . D March 2011 ST9900805FC ST9600205FC ST9450405FC ST9300605FC.
Revision history © 201 1 Seagate T echnology LLC. All rights reser ved. Publication number: 1006 28563, Rev . D, March 201 1 Seagate, Seagate T echnolog y and the W ave logo are register ed trademarks of Seagate T echnology LLC in the United S tates an d/or other countr ies.
Savvio 10K.5 FC Product Manu al, Rev. D i Content s 1.0 Seagate Technol ogy support servic es . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii Savvio 10K.5 FC Pr oduct Ma nual, Rev. D 7.4 Power dissip ation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 7.5 Environme ntal limits . . . . . . . . . . . . . . . . . . . . . .
Savvio 10K.5 FC Product Manu al, Rev. D iii 10.5.7 Fault LE D Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 10.5.8 Active LE D Out. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv Savvio 10K.5 FC Pr oduct Ma nual, Rev. D.
Savvio 10K.5 FC Product Manu al, 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 .
2 Savvio 10K.5 FC Pro duct Manual, Re v. D 2.0 Scope This manual describes Seagate T echnology ® LLC, Savvio ® 10K.5 FC (Fibre Chan nel) disk drives. Savvio 10K.5 FC drives suppo rt the Fibre Cha nnel Arbitr ated Loop and SCSI Fibre Channel Protocol specifica- tions to the extent described in this manual.
Savvio 10K.5 FC Product Manu al, Rev. D 3 3.0 Applicable st andards an d reference docume ntation 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 constructio n .
4 Savvio 10K.5 FC Pro duct Manual, Re v. D 3.1.2 Electromagnetic compliance Seagate uses an in dependent laboratory to confirm comp liance with the directives/st andards for CE Marking and C-T ick Marking. The drive was tested in a r epresen t ative system f or typical applications.
Savvio 10K.5 FC Product Manu al, Rev. D 5 3.2.1 China Restriction of Hazardous Substa nces (RoHS) Directive This product has an Environ mental Protection Use Pe riod (EPUP) of 20 years.
6 Savvio 10K.5 FC Pro duct Manual, Re v. D 4.0 General description Savvio 10K.5 FC drives provide high pe rfor mance, high cap acity data stor ag e for a variety of systems in cluding engineering workstatio ns, network server s, mainframes , and super comp uters.
Savvio 10K.5 FC Product Manu al, Rev. D 7 4.1 St andard features Savvio 10K.5 FC drives have the following st andard features: • Perpendicu lar recording technology • 4-Gb Fibre Channel interface .
8 Savvio 10K.5 FC Prod uct Manual, Rev. D 4.3 Performance • Programmabl e multi-segmentable cache buf fer • 800MB/s maximum inst antaneous data transfers per port • 10K RPM spindle.
Savvio 10K.5 FC Product Manu al, Rev. D 9 4.6 Programmable drive cap acity Using the Mode Select command, th e d rive can change its capacity to something less than maximum. See the Mode Select Parameter List t able in the SCSI Commands Refe ren ce Ma nu al .
10 Savvio 10K.5 FC Product Manual, Rev. D 5.0 Performance characteristics This section provides detailed inform ation concer ning perfor mance-r elate d characteri stics and featu res of Sav- vio 10K.
Savvio 10K.5 FC Product Manu al, Rev. D 11 5.2.2 Format command exe cu ti o n tim e (m inu te s ) ST9900805FC ST9600205FC ST9450 405FC ST9300605FC Maximum (with v erify) 234 156 117 78 Maximum (without ve rify) 116 75 58 36 5.
12 Savvio 10K.5 FC Product Manu al, Rev. D 5.5 Cache operation Note. Refer to the Fibre Channel Interface Manu al for more detail concerning the cache bits. Of the 64 Mbytes physical b uffer space in the drive, approximately 30,00 0 kbytes are available as a data cache.
Savvio 10K.5 FC Product Manu al, Rev. D 13 5.5.1 Caching write data 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 perfo rms th e Write command.
14 Savvio 10K.5 FC Product Manu al, Rev. D 6.0 Reliability specifications The following reliability specifications assume correct host and drive operational interfac e, including all inter- face timings, power supply volt ages, environmental requirement s and drive mounting constraint s.
Savvio 10K.5 FC Product Manu al, 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. After detecting an initial seek error , the drive automatically performs a n er ror recovery process.
16 Savvio 10K.5 FC Product Manu al, Rev. D The Pass-through st ate is disabled while the drive performs self test of the FC interface. The control line for an external port bypass circuit remains in the Enable Bypass state whil e self test is runnin g.
Savvio 10K.5 FC Product Manu al, Rev. D 17 Reporting contro l Reporting is controlled by the MRIE bit s in the Informat ional Excep t ions Control mode p age (1Ch). Subject to the reporting method. For exam ple, if the MRIE is set to one, the firmware will issue to the host an 01-5D00 sense code.
18 Savvio 10K.5 FC Product Manu al, Rev. D be used to set this trip point. The default va lue for this drive is 6 8°C, howe ver , you can set it to any value in the range of 0 to 68 °C. If you specify a tem perature g reater than 68°C in this field, th e temperature is rounded down to 68°C.
Savvio 10K.5 FC Product Manu al, Rev. D 19 A Drive Not Ready condition is reported by the drive under th e following conditions: • Motor will not spin • Motor will not lock to speed • Servo will.
20 Savvio 10K.5 FC Product Manu al, Rev. D The drive will report the failu re condition and LBA (if app lic able) in the Self-test Re sults Log p arameter . The Sense key , ASC, ASCQ, and FRU are used to report the failur e condition. 6.2.6.2. 5 Abort There are several ways to abort a diagnostic.
Savvio 10K.5 FC Product Manu al, Rev. D 21 7.0 Physical/electrical specifications This section provides information relating to the physical and electrical char acteristics of the drive.
22 Savvio 10K.5 FC Product Manu al, 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 entry Note. Processing the Request Sense command d oes not impact the drive’s power save state.
Savvio 10K.5 FC Product Manu al, Rev. D 23 7.3 DC power requirement s The volt age and current requireme nts for a single drive ar e shown below . V alues indicated apply at the drive connector .
24 Savvio 10K.5 FC Product Manu al, Rev. D T able 3: DC power requirements for ST9600205FC mode l 2Gb 4Gb Notes (Amps) (Amps) (Amps) (Amps) V oltage +5V +1 2V [2] +5V +1 2V [2] Regulation [6] ±5% ±5% [2] ±5% ±5% [2] Avg idle current DC [1] [8] 0.37 0.
Savvio 10K.5 FC Product Manu al, Rev. D 25 T able 4: DC power requirements for ST9450405FC mode l 2Gb 4Gb Notes (Amps) (Amps) (Amps) (Amps) V oltage +5V +12V [2] +5V +12V [2] Regulat ion [6] ±5% ±5% [2 ] ±5% ±5% [2] Avg idle current DC [1] [8] 0.37 0.
26 Savvio 10K.5 FC Product Manu al, Rev. D [1] Measured with average readi ng DC ammeter . Instantaneous +12V current peaks will exce ed these values. Power supply at nominal voltage.
Savvio 10K.5 FC Product Manu al, Rev. D 27 General DC power requirement notes. 1. Minimum curr ent loading for each supply vo ltage is not less than 1.2% of the maximum operating current shown. 2. The +5V and +12V supplies should employ separate gr ound returns.
28 Savvio 10K.5 FC Product Manual, Rev. D 7.3.3 Current profiles The +12V and +5V current profiles fo r the all models are shown below . Note: All times and currents are typical.
Savvio 10K.5 FC Product Manu al, Rev. D 29 Figure 2. T ypical ST960 0205FC dri ve, 4Gb, +5V and +12V current pr ofiles.
30 Savvio 10K.5 FC Product Manu al, Rev. D Figure 3. T ypical ST945040 5FC dri ve, 4Gb, +5V and +12V current profile s.
Savvio 10K.5 FC Product Manu al, Rev. D 31 Figure 4. T ypical ST930060 5FC dri ve, 4Gb, +5V and +12V current pr ofiles.
32 Savvio 10K.5 FC Product Manu al, Rev. D 7.4 Power dissip ation ST9900805FC T ypical power dissipation under idle cond itio ns in 4Gb operation is 4.77 W atts (16.26 BT Us per hour). T o obtai n operating power for typical random r ead operatio ns, r efer to the following I/O rate cu rve (see Figure 5).
Savvio 10K.5 FC Product Manu al, Rev. D 33 ST9600205FC T y pical power dissipation under idle conditions in 4Gb operation is 4.13 watt s (14.09 BTUs per hour). T o obtai n operating power for typical random r ead operatio ns, refer to the following I/O rate curve (see Figure 5).
34 Savvio 10K.5 FC Product Manu al, Rev. D ST9450405FC T ypical power dissipation under idle conditio ns in 4Gb operation is 4.07 watt s (13.90 BTUs per hour). T o obtai n operating power for typical random r ead operatio ns, r efer to the following I/O rate cu rve (see Figure 5).
Savvio 10K.5 FC Product Manu al, Rev. D 35 ST9300605FC T y pical power dissipation under idle conditions in 4Gb operation is 3.73 watt s (12.72 BTUs per hour). T o obtai n operating power for typical random r ead operatio ns, refer to the following I/O rate curve (see Figure 5).
36 Savvio 10K.5 FC Product Manual, Rev. D 7.5 Environment al limits 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 specifications are referenced to a st andard day at 58.
Savvio 10K.5 FC Product Manu al, Rev. D 37 7.5.3 Effective altitude (sea level) a. Operating –1,000 to +10,000 fee t (–304.8 to +3,048 meters) b. Non-operatin g –1,000 to +40,000 feet (–304.8 to +12,19 2 meters) 7.5.4 Shock and vibration Shock and vibration limits specified in this document are mea s ured directly on the drive chassis.
38 Savvio 10K.5 FC Product Manual, Rev. D Figure 9. Recommend ed mo unting Note. Image of the HDA may not re present actual product, for refe rence only.
Savvio 10K.5 FC Product Manu al, Rev. D 39 7.5.4.2 Vibration a. Operating—normal The drive as inst alled for normal operation, shall comply with the complete sp ecified performance while subjected to continuous vi bration not exceeding 5-500 Hz @ 0.
40 Savvio 10K.5 FC Product Manu al, Rev. D 7.5.7 Corros iv e en v iro nm ent Seagate elect ronic drive components pa ss accelerated corrosion te sting equivalent to 10 years e xposure to light industr ial environments cont aining sulfurou s gases, chlorine and nitric o xide, classe s G and H per AS TM B845.
Savvio 10K.5 FC Product Manu al, Rev. D 41 7.6 Mechanical specifications Refer to Figure 10 for det ailed physical dimensions. See Section 9.4, “Drive mounting.” Note. These dimensions conform to the Small Form Factor S tandard documented in SFF- 8201 and SFF-8222, found at www .
42 Savvio 10K.5 FC Product Manu al, Rev. D 8.0 Defect and error management Seagate continues to use innova tive technologies to manage defects and er rors. These technologie s are designed to increase dat a integrity , perform drive self-mainten ance, and validat e proper drive o peration.
Savvio 10K.5 FC Product Manu al, Rev. D 43 The drive firmware err o r recovery algor ithms consist of 20 levels for read recoveries and five lev e ls for write. Each level may consist of multiple st eps, where a step is defined as a re covery function involving a single re- read or re-write a t tempt.
44 Savvio 10K.5 FC Product Manu al, Rev. D 8.4 Background Media Scan Background Media Scan ( BMS) is a self-initiated me di a scan. BMS is define d in the T10 docume nt SPC-4 available from the T1 0 committee. BMS performs sequential reads across the entire pack o f the media while the drive is idle.
Savvio 10K.5 FC Product Manu al, Rev. D 45 8.7 Idle Read Af ter Write Idle Read After W r ite (IRA W) utilizes idle time to verify the integrity of rece ntly written data.
46 Savvio 10K.5 FC Product Manu al, Rev. D 8.8.3 Identifying a Protection Information dr ive The S tandard Inquiry pro vides a bit to ind icate if PI is supp ort by the drive. V ital Product Descriptor (VPD) p age 0x86 provides bits to indicate the PI T ypes supp orted and which PI fiel ds the drive supports checking.
Savvio 10K.5 FC Product Manu al, Rev. D 47 9.0 Inst allation Savvio 10K.5 FC disk drive inst allation is a plug-and- play process. Ther e are no jum pers, switche s, or termina- tors on the drive. Simp ly plug the drive into the ho st’s 40-pin Fibre Channel backpanel connector (FC-SCA) no cables are required.
48 Savvio 10K.5 FC Product Manu al, Rev. D If forced air is necessary , possible air-flow p atterns are shown in Figure 1 1. The air-flow p atterns are crea ted by fans either forcing or drawing air as shown in the illustrations.
Savvio 10K.5 FC Product Manu al, Rev. D 49 9.5 Grounding Signal ground (PCBA) and HDA ground are conne c ted together in the drive and ca nnot be separated by the user . The equipment in which the drive is mo unted is connected d irectly to the HD A and PC BA with no ele ctri- cally isolating shock mounts.
50 Savvio 10K.5 FC Product Manu al, Rev. D 10.0 Interface requirement s This section partially describes the interface re quirements as implemented o n Savvio 10K.5 FC drives. Addi- tional information is provided in the Fibre Channel I nterface M anual (part numbe r 100293070).
Savvio 10K.5 FC Product Manu al, Rev. D 51 10.1.2 Fibre Channel t ask management functions T able 8 lists the Fibre Chann e l SCSI Fibre Channel Pr otocol (FC SCSI FCP) t a sk management functions sup- ported.
52 Savvio 10K.5 FC Product Manual, Rev. D 10.1.4 Fibre Channel port login T able 10 identifies the required content of the N_ Por t Login ( PLOGI) payload from an initiator .
Savvio 10K.5 FC Product Manu al, Rev. D 53 10.1.5 Fibre Channel port login accept T able 1 1 identifies the N_Port Login access p ayload values. 10.1.6 Fibre Channel Process Login T able 12 lists the pro cess login p a yload dat a. XX Indicates fields that are not used.
54 Savvio 10K.5 FC Product Manu al, Rev. D 10.1.7 Fibre Channel Proces s Login Accept T able 13 lists Savvio 10K.5 FC pr o cess login accept payload dat a.
Savvio 10K.5 FC Product Manu al, Rev. D 55 10.1.9 Fibre Channel fabric accept login T able 15 lists the required cont en t of th e Fa b ric Log i n Acce pt (A CC) payload from the fa br ic.
56 Savvio 10K.5 FC Product Manu al, Rev. D 10.1.10 Fibre Channel Arbitrat ed Loop options T able 16 lists the FC-AL op tions supported by Savvio 10K.5 FC drives. 10.2 Dual port support Savvio 10K.5 FC drives have two independent FC-AL p orts. These port s may be connected on ind ependent loops or on the same loop.
Savvio 10K.5 FC Product Manu al, Rev. D 57 10.3 SCSI commands supported T able 17 list s the SCSI commands supported by Savvio 10K.5 FC drives. T able 17 : Supported com mands Command code Suppor ted .
58 Savvio 10K.5 FC Product Manu al, Rev. D Y V erify erro r recov er y page (0 7h) Y Caching parameters page (08 h) Y Control mode page (0Ah) Y Fibre C hannel Interface Control page (19h) Y P ower con.
Savvio 10K.5 FC Product Manu al, Rev. D 59 32h N Search data low 33h N Set limits 34h N Prefetch 35h Y Synchronize cache 36h N Lock-unlock-cache 37h Y Read defect data 39h N Compare 3Ah N Copy and v e.
60 Savvio 10K.5 FC Product Manu al, Rev. D [1] Savvio 10K.5 FC drives can format to 512, 520, 524 or 528 bytes per logical block. [2] Wa r n i n g . Power loss dur ing flash program ming can result in firmware corruption. This usually makes the drive inoperable.
Savvio 10K.5 FC Product Manu al, Rev. D 61 10.3.1 Inquiry data T able 18 list s the Inquiry command d ata that the drive should return to the initiator per the format given in the Fibre Channel In terface Manual . * Copyright year (change s with actual year).
62 Savvio 10K.5 FC Product Manu al, Rev. D On drives requiring unique sa ved values, the required unique saved values are stored into the saved val - ues storage location on the media prior to shipping the drive. Some drives may have unique firmware with unique default values also.
Savvio 10K.5 FC Product Manu al, Rev. D 63 T able 19: Mode Sense data saved, default and changeable v alues for ST9900805FC drives MODE DATA HEADER: 00 e2 00 10 01 00 00 10 BLOCK DESCRIPTOR: 00 00 00 .
64 Savvio 10K.5 FC Product Manu al, Rev. D T able 20: Mode Se nse data saved, default and changeable v alues for ST9600205FC drives MODE DATA HEADER: 00 e2 00 10 01 00 00 10 BLOCK DESCRIPTOR: 00 00 00.
Savvio 10K.5 FC Product Manu al, Rev. D 65 T able 21: Mod e Sense data default and changeable values for ST9450405FC drives MODE DATA HEADER: 00 e2 00 10 01 00 00 10 BLOCK DESCRIPTOR: 00 00 00 00 34 6.
66 Savvio 10K.5 FC Product Manu al, Rev. D T able 22: M ode Sense data default an d changeable v alues for ST9300605FC drives MODE DATA HEADER: 00 e2 00 10 01 00 00 10 BLOCK DESCRIPTOR: 00 00 00 00 22.
Savvio 10K.5 FC Product Manu al, Rev. D 67 10.4 Miscellaneous operating features and conditio ns T able 23 lists various featur es and conditions. A “Y” in t he support column indicates t he feature or condition is supported. An “N” in the support column indicates the feat ure or condition is not supported.
68 Savvio 10K.5 FC Product Manu al, Rev. D 10.5 FC-AL physical interface Figure 12 shows the location of the J1 Fibre Channel single connection at t achment (FC-SCA). Figure 14 pro- vides the dimens ion s of th e FC -SCA connector . Details of the physical, electrical, an d logical characteristics are provided wi thin this section.
Savvio 10K.5 FC Product Manu al, Rev. D 69 Figure 13. Port bypass circuit physical interconnect 10.5.2 Connector requirement s The FC-AL SCA device connector is illustra ted in Figure 14.
70 Savvio 10K.5 FC Product Manual, Rev. D T able 25: FC -SCA pin descripti on s Pin Signal name Signal type Pin Signal name Signal t ype 1* -EN bypass port A Low V oltage TT L output 21 12 V olts charge 2* 12 V olts 22 Ground 3* 12 V olts 23 Ground 4* 12 V olts 24* +Port A_in FC Dif f.
Savvio 10K.5 FC Product Manu al, Rev. D 71 10.5.6 Power Power is supplied through the FC-SCA with support for +5 volt s and +12 volts. All of the volt age pins in the drive connector are the same length. Four 12 volt pins provide +12 volt power to the drive.
72 Savvio 10K.5 FC Product Manu al, Rev. D 10.5.8 Active LED Out The Active LED Out signal is driven by the drive as indicated in T able 26. The Active LED Out signal is designed to pull down th e catho de of an LED. The anode is att ached to the proper +5 volt supply through an app r opriate current lim iting resistor .
Savvio 10K.5 FC Product Manu al, Rev. D 73 10.5.1 1 SEL_6 through SEL_0 ID lines The SEL_6 thro ugh SEL_0 ID lines determine drive address , and, optionally , for an Enclosur e Services Inter- face. When the Parallel ESI lin e is high , the e nclosure backp ane l must p rovide add ress in formation on the SEL line.
74 Savvio 10K.5 FC Product Manu al, Rev. D T able 28: Arb itrated loop physical ad dress (AL_P A) values AL_P A (hex) SEL ID (hex) Setting (dec) AL_P A (hex) SEL ID (hex) Setting (dec) AL_P A (hex) SE.
Savvio 10K.5 FC Product Manu al, Rev. D 75 10.5.12 Device contro l codes The drive input s a Device Control Code on the DEV_CT RL_CODE li nes at power up to determine the link rate on the Fibre Chan nel ports.
76 Savvio 10K.5 FC Product Manu al, Rev. D 10.6.2 LED driver signals Fault and Active LED signals are located in the FC-SCA connecto r ( J1). See T able 31 for the output characte r- istics of the LED drive signals. 10.6.3 FC Differential output The serial ou tput signal voltage char acter istics are provided in T able 32.
Savvio 10K.5 FC Product Manu al, Rev. D 77 Figure 17 p rovides the data valid ey e diagram fo r typical and mi nimum requir ements to recover data at th e specified inte rface error rate.
78 Savvio 10K.5 FC Product Manu al, Rev. D.
Savvio 10K.5 FC Product Manu al, Rev. D 79 Index Numerics 12 volt pins 71 3rd party reserve command 60 5 volt pins 71 A Abort Sequence (ABTS) 50 abort task set f unction 51 AC coupling 70 AC power req.
80 Savvio 10K.5 FC Product Manu al, Rev. D D DAR 44 data block s ize modifing the 8 data buffe r to/from di sc media 11 data heads read/write 10 data rate internal 10 data tran sfer rate 11 data valid.
Savvio 10K.5 FC Product Manu al, Rev. D 81 corruption 60 Firmware download option command 59 Firmware numbers page comma nd 57 flawed sector reallocation 7 FLOGI received on Po rt A 54 received on Po .
82 Savvio 10K.5 FC Product Manu al, Rev. D Media Pre-Sca n 44 miscellaneous featur e support Adaptive caching 67 Asynchronous event notification 67 Automatic contingent allegiance 67 Deferred error ha.
Savvio 10K.5 FC Product Manu al, Rev. D 83 accept 53 Port Name 55 Port name (initiator ’s) 52 power 71 dissipation 3 2 requirements, AC 22 requirements, DC 23 sequencing 27 Power Condition mode page.
84 Savvio 10K.5 FC Product Manu al, Rev. D Self-Monitoring Ana lysis and Reporting Technology 8 , 16 Send diagn ostics page com mand 58 Sequential deliv ery 52 , 55 Service Options 55 Service options .
Savvio 10K.5 FC Product Manu al, Rev. D 85 zone bit recording (ZBR) 7.
86 Savvio 10K.5 FC Product Manu al, Rev. D.
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Seagate T echnology LLC 920 Disc Drive, Scotts V alley , California 95066-4544, USA Publication Number: 1006 28563, Rev . D.
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 ST9900805FC 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 ST9900805FC - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Seagate ST9900805FC imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Seagate ST9900805FC ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Seagate ST9900805FC, 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 ST9900805FC.
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 ST9900805FC. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Seagate ST9900805FC 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.
