SEAGATE ST43401N/ND - Manuals

Page 2 - Contents

© 1994 Seagate Technology, Inc. All rights reservedPublication number: 83327720, Rev. BDecember 1994 Seagate ® , Seagate Technology ® , and the Seagate logo are registered trademarks of Seagate Technology, Inc. Elite™, SeaFAX™, SeaFONE™,SeaTDD™, and SeaBOARD™ are trademarks of Seagate Technology, In...

Page 3 - Preface; Electrostatic discharge protection

ST43401N/ND, ST43402ND User’s Manual, Rev. B iii Preface This manual contains information for users of Seagate ® ST43401N/ND and ST43402ND Elite™ disc drives. It provides instructions to all personnel whooperate the drive and to customer engineers who install and check out thedrive. Additional infor...

Page 4 - Important safety information and precautions

iv ST43401N/ND, ST43402ND User’s Manual, Rev. B Important safety information and precautions Caution. Use forced-air ventilation when bench-testing the drive to ensure proper cooling of drive components. Use proper safety and repair techniques for safe, reliable operation of this unit.Service should...

Page 6 - Wichtige Sicherheitshinweise; • Beachten Sie alle Warn- und Vorsichtshinweise in diesem Handbuch.

vi ST43401N/ND, ST43402ND User’s Manual, Rev. B Wichtige Sicherheitshinweise Vorsicht. Beim Testen des Laufwerks auf dem Prüftisch ist Fremdbelüftungvorzusehen, um eine ausreichende Kühlung der Laufwerkkomponentensicherzustellen. Verwenden Sie geeignete Sicherheits- und Reparaturverfahren, um densic...

Page 8 - viii

viii ST43401N/ND, ST43402ND User’s Manual, Rev. B Dieses Gerät ist eine Baugruppe und unterliegt als solche nicht denAnforderungen der FCC oder ähnlicher nationaler Behörden für eigenständige.Technische Testergebnisse zu Frequenz- und Elektrizitätsemissionen sindf ü r D e s i g n e r v o n U n t e r...

Page 9 - ix; Technical support services; • Specifications and jumper configurations for Seagate products

ST43401N/ND, ST43402ND User’s Manual, Rev. B ix Technical support services Seagate Technology provides technical support literature and diagnosticutilities to authorized distributors. Please contact your dealer for technicalsupport and installation troubleshooting. Product technical support is avail...

Page 11 - Section 1. General description

Control Board Power Board Optional Bezel Chassis DC Power Connector Option Jumpers and Spindle Sync Connector Option Jumpers I/O Connector Option Jumpers Option Jumpers Head and Disc Assembly (HDA) Pin 1 ST43401N/ND, ST43402ND User’s Manual, Rev. B 1 Section 1. General description Seagate ST43401N/N...

Page 16 - Figure 3. Drive functional block diagram

6 ST43401N/ND, ST43402ND User’s Manual, Rev. B When the drive is not powered on, the heads rest on the disc surface in apreassigned landing zone beyond the data zone. The actuator automaticallylatches in this position at shutdown for moving or shipping protection. Whenthe drive is activated to bring...

Page 17 - Site requirements; Voraussetzungen am Aufstellungsort; Environmental requirements

ST43401N/ND, ST43402ND User’s Manual, Rev. B 7 Section 2. Installation/Abschnitt 2. Installation The information contained in this section describes installation and initialcheckout of the drive. Site requirements The site requirements considered are environment, airflow, space, power,grounding, and...

Page 20 - Air-flow requirements

10 ST43401N/ND, ST43402ND User’s Manual, Rev. B Air-flow requirements The enclosure design must ensure adequate cooling for the drive. Note thatthe fan in the power supply cools only the power supply’s internal parts. The drive’s product specification (document 64403603) describes how toevaluate the...

Page 21 - Figure 4. Suggested air flow/Empfohlener Luftstromverlauf

ST43401N/ND, ST43402ND User’s Manual, Rev. B 11 Above unit Under unit Note. Air flows in the direction shown (front to back) or in reverse direction (back to front) Above unit Under unit Note. Air flows in the direction shown or in reverse direction (side to side) Figure 4. Suggested air flow/Empfoh...

Page 23 - Montageorientierungen

ST43401N/ND, ST43402ND User’s Manual, Rev. B 13 Up Up Up Figure 5. Mounting orientations/ Montageorientierungen

Page 24 - Laufwerkabmessungen

14 ST43401N/ND, ST43402ND User’s Manual, Rev. B 203.20 mm 8.00 in max 82.55 mm 3.25 in 149.35 mm 5.88 in Figure 6. Dimensions of the drive/ Laufwerkabmessungen

Page 25 - Power requirements

ST43401N/ND, ST43402ND User’s Manual, Rev. B 15 Power requirements The voltage and current requirements for a single drive at cylinder 0 are shownin Table 3. Ensure that your power supply meets these requirements. Table 3. Single drive voltage and current requirements Current without Internal Curren...

Page 27 - Figure 7. SCSI bus configuration

ST43401N/ND, ST43402ND User’s Manual, Rev. B 17 Grounding requirements A safety ground must be provided by the site AC power system. The greenwire (or green wire with yellow stripe) in the AC power cord provides the safetyground connection between the power supply and the site AC power system.The si...

Page 32 - Unpacking; Open the package and remove the drive from its conductive static; Inspection

22 ST43401N/ND, ST43402ND User’s Manual, Rev. B Unpacking, inspection, and repacking After removing the packing material, inspect the drive for shipping damage.Save all packing materials for future use. The drive is shipped separately from any other items ordered for theinstallation. Unpacking 1. Al...

Page 33 - Installation procedures; Setting the control board jumpers

ST43401N/ND, ST43402ND User’s Manual, Rev. B 23 Installation procedures With the site requirements completed, the enclosure designed, and the driveunpacked you are ready to begin the installation. The following procedures areincluded in drive installation: • Setting the circuit board jumpers• Instal...

Page 34 - Figure 8. ST43401N/ND control board jumpers

24 ST43401N/ND, ST43402ND User’s Manual, Rev. B Figure 8. ST43401N/ND control board jumpers Pin 1 Pin 1 Pin 1 Terminator Resistor-Paks (3) (must be installed if drive is at either end of the daisychain) 1 2 3 4 Terminator Power Source Jumper Assign the terminal power jumpers as shown below. 2 1 4 3 ...

Page 35 - Figure 9. ST43402ND control board jumpers

ST43401N/ND, ST43402ND User’s Manual, Rev. B 25 Not used Not used Not used Write Protect/Enable (WRT) Slave Select (SLV) J4A Write Protect/Enable (WRT) N/A N/A N/A WRT Write protect (disable writing) Write enable (enable writing) Slave Select (SLV) Master (master for spindle sync) Slave (slave drive...

Page 39 - Mount the power supply in the desired location.

ST43401N/ND, ST43402ND User’s Manual, Rev. B 29 Installing a power supply A power supply is required to provide current to the disc drive. Several vendorsoffer power supplies that meet the disc drive’s power requirements. Ensurethat the power supply you select meets these requirements as specified i...

Page 40 - Attaching an optional bezel; surface of the bezel.

30 ST43401N/ND, ST43402ND User’s Manual, Rev. B Attaching an optional bezel Use the following procedure to attach an optional bezel to the drive. The bezelis available as an accessory (see Section 4). 1. Remove the backing from the double-sticky tape attached to the rear surface of the bezel. 2. Ori...

Page 41 - as shown in Figure 14.

ST43401N/ND, ST43402ND User’s Manual, Rev. B 31 Mounting the drive Caution. When installing the drive, observe all precautions listed under “Electrostatic discharge protection” in the preface. Failure to ob-serve these precautions can result in serious damage to electronicassemblies. The drive may b...

Page 43 - Connecting the system I/O cabling

ST43401N/ND, ST43402ND User’s Manual, Rev. B 33 Connecting the system I/O cabling Make sure the site has been prepared in accordance with the site require-ments information provided earlier in this section. This procedure describeshow to cable the system in a daisy-chain configuration, which was dis...

Page 46 - Figure 18. ST43401ND terminator attachment—differential I/O

36 ST43401N/ND, ST43402ND User’s Manual, Rev. B Figure 18 shows how the terminator resistor-paks are attached on ST43401NDdrives (differential I/O). These terminator resistor-paks, which are dual inlinepackages, mount in sockets in the control board. These terminators are alsomarked with a dot above...

Page 47 - Figure 19. System diagram for spindle sync

ST43401N/ND, ST43402ND User’s Manual, Rev. B 37 Grounding the system Grounding the system through the power cables and I/O cables is usuallysufficient to protect against noise and emissions. Synchronizing the spindle The spindle sync feature makes it possible to synchronize the spindle rotationof a ...

Page 48 - Figure 20. Making ST43401N/ND spindle sync connections

38 ST43401N/ND, ST43402ND User’s Manual, Rev. B To enable the feature, it is necessary to run an additional daisy-chain cablefrom drive to drive and to make a master/slave selection for each drive.Connector J7 is used by ST43401N/ND drives. Connector J5 on the controlboard handles the cable connecti...

Page 49 - Figure 21. Making ST43402ND spindle sync connections

ST43401N/ND, ST43402ND User’s Manual, Rev. B 39 Pin 1 B J5 J4A A Cable from Preceding Unit Cable to Next Unit Control Board Select Plug (removed = master) Slave Select Figure 21. Making ST43402ND spindle sync connections

Page 51 - Verification; were both disconnected, the spindle spinup begins immediately.

ST43401N/ND, ST43402ND User’s Manual, Rev. B 41 Verification After installing the drive, follow the sequence outlined below for initial startup. 1. Place the on/standby switch in the on ( l ) position. What follows depends on the setting of the Start Command option and the SpinupDelay option jumpers...

Page 53 - normal drive operation.; LED indicators

ST43401N/ND, ST43402ND User’s Manual, Rev. B 43 Section 3. Operation This section provides the information and instructions to operate the drive. Itis arranged as follows: • LED indicators—locates and describes the switches and indicators used for normal drive operation. • Operating instructions—des...

Page 55 - Table 6. LED functions for ST43401N/ND drives; LED indicator

ST43401N/ND, ST43402ND User’s Manual, Rev. B 45 Table 6. LED functions for ST43401N/ND drives LED indicator Function Drive control board Ready LED This LED flashes during the power-on sequence until (green) the discs are up to speed and the heads are loaded.It is on steady with power-on complete, as...

Page 57 - Table 7. LED functions for ST43402ND drives

ST43401N/ND, ST43402ND User’s Manual, Rev. B 47 Table 7. LED functions for ST43402ND drives LED indicator Function Drive control board Ready LED This LED flashes during the power-on sequence until (green) the discs are up to speed and the heads are loaded.It is on steady with power-on complete, assu...

Page 58 - LED or indicator

48 ST43401N/ND, ST43402ND User’s Manual, Rev. B continued from previous page LED or indicator Function SCSI I/O board SCSI port A enabled This LED is on steady when port A is enabled to (green) receive SCSI commands and to transfer data onthis port. SCSI port B enabled This LED is on steady when por...

Page 59 - Section 4. Parts data

ST43401N/ND, ST43402ND User’s Manual, Rev. B 49 Section 4. Parts data This section lists part numbers of options and accessories that can be usedin a drive installation. Because the drive is depot repairable, there are no field-replaceable parts. If the drive requires maintenance, refer to the instr...

Page 61 - Section 5. Maintenance; This section contains the following maintenance information:; Observing maintenance precautions; • Do not remove the head and disc assembly (HDA) from the drive chassis.

ST43401N/ND, ST43402ND User’s Manual, Rev. B 51 Section 5. Maintenance This section contains the following maintenance information: • Observing maintenance precautions• Arranging for depot repair• Removing and replacing a drive• Packing a drive for shipment Observing maintenance precautions Because ...

Page 62 - To remove a drive for maintenance, perform the following steps:; Packing a drive for shipment

52 ST43401N/ND, ST43402ND User’s Manual, Rev. B Arranging for depot repair Before returning any units to Seagate, it is necessary to obtain a returnedmaterial authorization (RMA) number. To get the number, you will need toknow the part number and serial number of the unit. These numbers appearon a l...