Manuale d’uso / di manutenzione del prodotto WDE2170 del fabbricante Western Digital
Vai alla pagina of 54
W estern D igital SCSI Hard Drives WD Enterprise T echnical R efer ence Manual.
© 1997 Western Digital Corporation All Rights Reserved Information furnished by Western Digital Corporation is believed to be accurate and reliable. No license is granted by implication or otherwise under any patent or patent rights of Western Digital Corporation.
4079-001045 Rev. B RELEASED 04-08-97 WD Enterprise WDE2170/WDE4360 (CCC: A9) Technical Reference Manual.
RELEASED 04-08-97 4079-001045 Rev. B.
WD Enterprise WDE2170/WDE4360 Table of Contents 4079-001045 Rev. B RELEASED 04-08-97 i T T ABLE OF ABLE OF C C ONTENTS ONTENTS 1. D ESCRIPTION AND F EATURES ............................................................................. 1 1.1. General Description.
Table of Contents WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B ii 3.15. LED Support ......................................................................................................................... 23 3.16. Option Block Functions .
WD Enterprise WDE2170/WDE4360 Table of Contents 4079-001045 Rev. B RELEASED 04-08-97 iii L L IST OF IST OF F F IGURES IGURES Figure 2-1. 50-pin Drive Dimensions ..........................................................................................
Table of Contents WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B iv L L IST OF IST OF T T ABLES ABLES Table 2-1. WDE2170/4360 Performance Specifications ............................................................ 4 Table 2-2. WDE2170/4360 Physical Specifications .
WD Enterprise WDE2170/WDE4360 Description and Features 4079-001045 Rev. B RELEASED 04-08-97 1 1. D ES CRI P T ION A ND F EA TUR ES 1.1. General Description Designed to set a new direction in mass storage solutions, the WD Enterprise™ low- profile 3.
Description and Features WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 2 1.2. Advanced Features Product Features Formatted Capacities of 2.
WD Enterprise WDE2170/WDE4360 Description and Features 4079-001045 Rev. B RELEASED 04-08-97 3 1.3. Options Upon request, the following options are incorporated at the time of production. Data Buffer of 1 Megabyte The standard data buffer size is 512 kilobytes.
Specifications WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 4 2. S P EC IFICA T IONS 2.1. Performance Specifications Table 2-1. WDE2170/4360 Performance Specifications PERFORMANCE CRITERIA WDE2170/WDE4360 SPECIFICATIONS Average Seek • Read • Write 8 ms 9.
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 5 2.2. Physical Specifications Table 2-2. WDE2170/4360 Physical Specifications Physical Specifications WDE2170 WDE4360.
Specifications WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 6 2.2.1. Physical Dimensions Table 2-3. WDE2170/4360 Physical Dimensions Physical U.S. Metric Characteristic Dimension Tolerance Dimension Tolerance Height 1.00 inch ± 0.
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 7 2.3. Mechanical Specifications Figure 2-1 through Figure 2-3 show the mounting dimensions and locations of the screw holes for the WDE2170 and WDE4360 drives. Figure 2-1.
Specifications WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 8 Figure 2-2. 68-pin Drive Dimensions Table 2-5. 68-pin Drive Dimensions Dimension Inches Millimeters A1 4.000 ± .020 101.60 ± 0.51 A2 3.750 ± .010 95.25 ± 0.25 A3 2.
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 9 Figure 2-3. 80-pin Drive Dimensions Table 2-6. 80-pin Drive Dimensions Dimension Inches Millimeters A1 4.000 ± .020 101.60 ± 0.51 A2 3.750 ± .010 95.25 ± 0.25 A3 2.
Specifications WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 10 2.3.1 . Mounting The WD Enterprise drives feature side and bottom mounting holes, which allow the drive to be mounted in any orientation. See Figure 2-4 for orientation axes.
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 11 2.4. Electrical Specifications 2.4.1. Current Requirements and Power Dissipation Table 2-7.
Specifications WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 12 2.4.2. 12V Current Profile The following graphs show the +12V current profile for the WDE2170 and WDE4360 drives during spin-up and run. Figure 2-5. WDE2170 +12V Current Profile 0 1 2 3 4 5 6 7 8 9 1 0 0 0.
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 1 3 2.4.3. Input Voltage Requirements The input voltage requirements for the WDE2170 and WDE4360 are as follows: + 5V ± 5% and + 12V ± 5% 2.
Specifications WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 14 2.5. Environmental Specifications 2.5.1. Shock and Vibration All shock and vibration specifications apply to the mounting and orientation conditions described in section 2.
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 1 5 Operating Vibration WD Enterprise drives are tested by applying a continuous swept sine excitation in each linear axis, one axis at a time. Sweep rate is one octave per minute.
Specifications WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 16 2.5.2. Temperature and Humidity Table 2-11. Temperature and Humidity Temperature and Humidity Operating 1 Temperatu.
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 1 7 2.5.4 . Atmospheric Pressure Table 2-13. Allowable Altitude Ranges Altitude Operating -1,000 feet to 10,000 feet (-300m to 3,000m) Non-operating -1,000 feet to 40,000 feet (-300m to 12,000m) 2.
Specifications WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 18 Figure 2-7. Drive Baseplate Thermocouple Location.
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 1 9 Figure 2-8. PCBA Thermocouple Locations.
Specifications WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 2 0 2.6. Reliability Specifications Table 2-15. WDE2170 and WDE4360 Reliability Parameters Recoverable Data Error Rate.
WD Enterprise WDE2170/WDE4360 Advanced Product Features 4079-001045 Rev. B RELEASED 04-08-97 2 1 3. A DV A NCED P RODUCT F EA TUR ES 3.1. Compatibility Testing Western Digital performs extensive testing in its Functional Integrity Test Lab (FIT Lab™).
Advanced Product Features WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 2 2 3.8. Command Queuing and Reordering The drives support both tagged and untagged queuing. Tagged queuing allows the drive to receive multiple I/O processes from each initiator.
WD Enterprise WDE2170/WDE4360 Advanced Product Features 4079-001045 Rev. B RELEASED 04-08-97 23 3.13. Zoned Recording The drives employ zoned recording to increase data density on the outer tracks of the drive.
Advanced Product Features WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 2 4 3.16. Option Block Functions The firmware uses several pins on the option block to modify the drive characteristics. The definitions for the jumpers follow: SCSI ID: Four jumpers are used to identify the default SCSI ID for the drive.
WD Enterprise WDE2170/WDE4360 Advanced Product Features 4079-001045 Rev. B RELEASED 04-08-97 25 3.17. Error Recovery Operations Error recovery options are set using MODE SELECT Page 1 (Read/Write Error Recovery Page) and the Write Recovery Threshold and Read Recovery Threshold fields in MODE SELECT Page 0 (WD Vendor Unique Page).
Advanced Product Features WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 2 6 3.19. Hot Plug/Unplug Support The conditions for hot-plugging drives into an active SCSI bus follow: The drive signal ground must be made before the SCSI bus signals.
WD Enterprise WDE2170/WDE4360 SCSI Interface and Command Set 4079-001045 Rev. B RELEASED 04-08-97 27 4. SCSI I N T ERF A CE A N D C O MMAND S ET Refer to the Western Digital SCSI Implementation Guide (document number 4096-001116).
The Option Block WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 2 8 5. T HE O PTI ON B LOCK The WD Enterprise drive PCBA contains an option block that controls the drive’s operation. This block is equipped with jumper pins that correspond to various options controlled by SCSI commands.
WD Enterprise WDE2170/WDE4360 The Option Block 4079-001045 Rev. B RELEASED 04-08-97 29 5.3. Option Block Pin Assignments The option block is used to modify the drive characteristics. The table below shows the pin numbers that correspond to each option or signal, and provides instruction for enabling and disabling these features.
The Option Block WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 30 5.4. SCSI ID Jumper Table Table 5-2. SCSI ID Jumper Table JUMPER LOCATION SCSI ID Pins 7 & 8 Pins 5 & 6 P.
WD Enterprise WDE2170/WDE4360 SCSI Connectors 4079-001045 Rev. B RELEASED 04-08-97 31 6. SCSI C O NNEC TO R S 6.1. Power Connectors and Cables Table 6-1. 50-pin Drive Power Connector and Cable POWER CONNECTOR MATING CONNECTOR WIRE GAUGE AMP 2-in-1 1x4 PC power connector 18 A WG Table 6-2.
SCSI Connectors WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 32 6.3. 50-Pin SCSI Connector Figure 6-1. 50-Pin SCSI Connector and Power Connector Pin Numbers 50 49 51 52 2 1 53 54.
WD Enterprise WDE2170/WDE4360 SCSI Connectors 4079-001045 Rev. B RELEASED 04-08-97 3 3 Table 6-3. 50-Pin SCSI Connector Pin Assignments SINGLE-ENDED SCSI CONNECTOR Signal Name Pin Number Signal Name G.
SCSI Connectors WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 34 6.4. 68-Pin SCSI Connector Figure 6-2. 68-Pin SCSI Connector, Remote Option Connector, and Power Connector Pin Num.
WD Enterprise WDE2170/WDE4360 SCSI Connectors 4079-001045 Rev. B RELEASED 04-08-97 3 5 Table 6-5. 68-pin SCSI Connector Pin Assignments SINGLE-ENDED SCSI CONNECTOR DIFFERENTIAL SCSI CONNECTOR (OPTIONA.
SCSI Connectors WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 36 Table 6-6. Remote Option for 68-Pin Connector (single-ended and differential versions) Signal Name SFF-8009 Signal.
WD Enterprise WDE2170/WDE4360 SCSI Connectors 4079-001045 Rev. B RELEASED 04-08-97 3 7 Table 6-8. 80-Pin (SCA-2) SCSI Connector Pin Assignments SINGLE-ENDED SCSI CONNECTOR Signal Name Pin Number Signa.
Installation and Maintenance WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 38 7. I N S T A LLA TION A ND M AI NT E NAN C E For instructions on installing the drive, including driv.
WD Enterprise WDE2170/WDE4360 Technical Support 4079-001045 Rev. B RELEASED 04-08-97 3 9 8. T E CHNIC A L S U PPORT If you have a problem with your WD Enterprise drive, the following tips may help determine the cause of the problem. Verify that you have correctly followed the setup procedures for your system.
Glossary WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 40 9. G L O S S ARY Active Termination - Works to control the impedance at the end of the SCSI bus by using a voltage regulator. This reduces the susceptibility of the bus to noise, particularly when cables are long or when many devices are connected to the bus.
WD Enterprise WDE2170/WDE4360 Glossary 4079-001045 Rev. B RELEASED 04-08-97 41 Formatted Capacity - Actual capacity available to store data in a mass storage device. The formatted capacity is the gross capacity minus the capacity taken up by the overhead data required for formatting the media.
Glossary WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 42 Servo Burst - Provides positioning information to the actuator arm, usually positioned between sectors or at the end of a track. Single-ended SCSI - Standard electrical interface for SCSI.
WD Enterprise WDE2170/WDE4360 Appendix A. — Understanding the Model Number 4079-001045 Rev. B RELEASED 04-08-97 4 3 10. A PPEN DI X A. — U N DER ST A N DI N G THE M OD EL N UMB ER The diagram illustrates the model number convention for WD Enterprise drives.
Index WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 44 11. I NDE X —A— Acoustics, 17 Actuator Type, 5 Adaptive Caching, 21 Agency Approvals, 20 AOL, 39 Atmospheric Pressure, 1.
WD Enterprise WDE2170/WDE4360 Index 4079-001045 Rev. B RELEASED 04-08-97 4 5 —R— Read Caching, 21 Recording Method, 5 Recoverable Error, 41 Reed Solomon ECC, 22 Ripple, 13 Rotational Speed, 4 RPM, 4, 41 —S— S.
H0300 4/97.
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 Western Digital WDE2170 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 Western Digital WDE2170 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Western Digital WDE2170 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Western Digital WDE2170 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Western Digital WDE2170, 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 Western Digital WDE2170.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Western Digital WDE2170. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Western Digital WDE2170 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.
