Seagate ST43400N/ND manual

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Elite Disc Drive ST43400N/ND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . User ’ s Manual[...]

ii Contents Preface .................................................................................................... iii Electrostatic discharge protection ........................................................ ii i Important safety information and precautions ...................................... iv Technical support services ..............[...]

ST43400N/ND User’s Manual iii Preface This manual contains information for users of the Seagate ST43400N and ST43400ND Elite disc drives employing the SCSI interface. It provides instal- lation, operation, and maintenance information. This manual also lists the part numbers for options and accessories available for these drives. Additional inform[...]

iv 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 be done only by qualified persons. We recommend the proce- dures in this manual as effective [...]

ST43400N/ND User’s Manual v • Do not remove the head and disc assembly (HDA) from the drive chassis. Return the entire drive for depot repair if the HDA is defective. • Do not attempt to disassemble the HDA. It is not field repairable. If the sealed HDA is opened by personnel not performing depot repair, this will damage components and void t[...]

vi Technical support services Seagate Technology provides technical support literature and diagnostic utili- ties to authorized distributors. Please contact your dealer for technical support and installation troubleshooting. Product technical support is available for all Seagate products by calling the SeaFAX, SeaFONE, or SeaBOARD services. These a[...]

Section 1. General description The Seagate ST43400N/ND Elite 3 disc drives are high speed, random access digital data storage devices. They communicate with an initiator using the Small Computer System Interface (SCSI). The drive is shown in Figure 1, and its specifications are listed in Table 1 on the following page. The drive is a component for i[...]

2 Table 1. Drive specifications Characteristics Conditions Specifications Size Dimensions See “Space requirements” in section 2 Weight (drive only) 3.6 kg (8.0 lb) Weight (power supply only) 2.3 kg (5.0 lb) Interface Fast SCSI-2 Recording Total capacity 3,554,871,600 bytes (unformatted) Bytes per track (unformatted) Inner track 49,000 bytes Out[...]

General description 3 continued from previous page Characteristics Conditions Specifications SCSI transfer rate, burst 10.0 Mbytes/sec max Seek time (time required to move heads to a different track address— excluding SCSI I/O overhead) Typical full 23.5 msec Typical average 11.5 msec Typical one-track 1.7 msec Typical access times Write Read Typ[...]

4 The drive contains all the circuits and mechanical devices necessary to record data on and recover it from its discs. The drive requires DC voltage input from an external power supply, which receives its AC input power from the site main power source. A power supply and DC power cable are available accessories. The drive consists of a head and di[...]

General description 5 Initiator Unit Selection Logic Read/Write Logic Head Selection Logic Seek Logic Track Orientation Logic Error Detection Logic I/0 Lines SCSI Controller Power Supply Discs Heads Data recorded in concentric tracks Figure 2. Drive functional block diagram After arriving at the data track and selecting a head, the controller locat[...]

Section 2. Installation The information contained in this section describes installation and initial checkout of the drive. Site requirements The site requirements considered are environment, airflow, space, power, grounding, and interface. Environmental requirements All environmental requirements for the drive are listed in Table 2 below. Table 2.[...]

8 Airflow requirements The enclosure design must ensure adequate cooling for the drive. Note that the fan in the power supply cools only the power supply’s internal parts. The drive’s product specification (document 64403601) describes how to evaluate the airflow design. The evaluation consists of ensuring that the case temperatures of certain [...]

Installation 9 Above unit Under unit Note. Air flow in the direction shown (front to back) or in reverse direction (back to front) Above unit Under unit Note. Air flow in the direction shown or in reverse direction (side to side) Figure 3. Suggested airflow[...]

10 Figure 4. Mounting orientations Space requirements The drive is designed to be mounted in one of the three orientations shown in Figure 4. The drive may be mounted on its base or on either side. Mounting orientations other than those shown are not permitted. The physical dimen- sions of the drive and power supply are shown in Figure 5. The drive[...]

Installation 11 83 mm 3.25 in 204.72 mm 8.06 in max 70 mm 2.75 in 141 mm 5.57 in 147 mm 5.75 in Drive Power Supply 202 mm 8.00 in Figure 5. Dimensions of the drive and power supply[...]

12 Power requirements The voltage and current requirements for a single drive at cylinder 0 are shown in Table 3. Table 3. Single drive voltage and current requirements Current without Internal Current with Internal Terminator Terminator Seeking Contin- Seeking Contin- and uous and uous Voltage Idle Reading Reading Idle Reading Reading SCSI single-[...]

Installation 13 AC power requirements for the optional Seagate power supply are listed in Table 4 below. Conversion to the different line voltages is explained in the installation procedures. Table 4. Power supply AC power requirements Nominal Values Specifications 100–120 VAC 208–240 VAC Voltage range 85 to 132 V 175 to 264 V Nominal line freq[...]

14 SCSI Device 0 SCSI Device 1 SCSI Device 2 SCSI Device 3 Term SCSI Device 7 SCSI Device 6 SCSI Device 5 SCSI Device 4 Term Figure 6. SCSI bus configuration A connector (J06) at the back of the drive accepts the I/O cable that connects it to the system. The daisychain cable is a continuous unshielded cable having one connector for each drive it co[...]

Installation 15 Table 5. Unshielded single-ended I/O cabling Signal Name Pin Number DB- (0) 2 DB- (1) 4 DB- (2) 6 DB- (3) 8 DB- (4) 10 DB- (5) 12 DB- (6) 14 DB- (7) 16 DB- (P) 18 GROUND 20 GROUND 22 GROUND 24 TERMPWR 26 GROUND 28 GROUND 30 ATN- 32 GROUND 34 BSY- 36 ACK- 38 RST- 40 MSG- 42 SEL- 44 C/D- 46 REQ- 48 I/O- 50 Notes: 1. All odd pins excep[...]

16 Table 6. Unshielded differential I/O cabling Signal Name Pin Number Pin Number Signal Name (GROUND) 1 2 GROUND DB(0) 3 4 DB- (0) DB(1) 5 6 DB- (1) DB(2) 7 8 DB- (2) DB(3) 9 10 DB- (3) DB(4) 11 12 DB- (4) DB(5) 13 14 DB- (5) DB(6) 15 16 DB- (6) DB(7) 17 18 DB- (7) DB(P) 19 20 DB- (P) DIFFSENS 21 22 GROUND GROUND 23 24 GROUND TERMPWR 25 26 TERMPWR[...]

Installation 17 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 the installation. Unpacking 1. Allow the drive temperature to approach the ambient temperature of the unpacking a[...]

18 Installation procedures With the site requirements completed, the enclosure designed, and the drive unpacked, you are ready to begin the installation. The following procedures are included in drive installation: • Setting the control board jumpers • Installing the power supply • Attaching an optional bezel • Mounting the drive • Connec[...]

Installation 19 SCSI Selectors J4A ID2 ID1 ID0 Write Protect (WP) Master/Slave (MS) Spinup Delay option (SD) Start Command option (SC) SCSI Bus Parity Check option (PAR) Sweep Cycle option (SWP) J4B Terminator Resistor-Paks (must be installed if drive is at either end of daisychain) 1 2 3 4 Terminator Power Source Jumper Assign the terminal power j[...]

20 Installing the power supply A power supply and AC power cord are available if desired. The power supply is configured before shipment to operate in one of two AC input voltage ranges. The voltage select plate on the power supply (see Figure 8) indicates the factory- preset voltage range. You may change the voltage range by setting the voltage se[...]

Installation 21 Pin 1 DC Output Connector J15 Voltage Select Switch On / Standby Switch Cooling Fan (air inlet) Bottom-Mounting Screws (4) Ground Strap (to cabinet safety ground) DC Power Cable Side-Mounting Screws (2 on each side) AC Power Connector J1 Voltage Select Plate Chassis Safety Ground Screw Figure 8. Power supply installation[...]

22 Installing an optional bezel Use the following procedure to attach an optional bezel to the drive. The bezel is 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. Orient the drive and bezel as shown in Figure 9. 3 . Align the mounting bosses on the rear of th[...]

Installation 23 Control Board LED Socket LED Plug Active LED Bezel Mounting Boss Chassis Chassis Mounting Holes (2) Figure 9. Attaching a bezel[...]

24 Mounting the drive The drive may be secured to the enclosure via tapped holes in either the sides or the bottom of the drive chassis. Figure 10 shows two of the three allowable orientations. Note. The mounting screws must be completely engaged in the drive chassis, but the portion that extends into the chassis must not exceed 3.2 mm (0.125 in) i[...]

Installation 25 6-32 Bottom-Mounting Screws (4) DC Power Connector J15 Pin 1 DC Power Cable M4 x .70 (metric) M4 x .70 (metric) 6-32 Screw 6-32 Screw Side-Mounting Screws (2 on each side) NOTE: Either side- or bottom-mounting screws can be used with each drive orientation 1 1 1 2 2 Up Up 1234 Drive Pin Power 1 2 3 4 +12 VDC +12 Volts return +5 Volt[...]

26 Connecting the system I/O cabling Be sure that the site has been prepared in accordance with the site requirements information provided earlier in this section. This procedure describes how to cable the system in a daisychain configuration. This configuration was discussed earlier in this section under “Interface require- ments.” The drive h[...]

Installation 27 Figure 12 shows how the terminator resistor-paks are attached on drives with single-ended I/O. The terminator resistor-paks, which are single inline pack- ages, mount in the rows of holes located in the control board. Ensure that they are installed with the correct orientation (indicated by a dot above pin 1) to terminate these driv[...]

28 Figure 13 shows how the terminator resistor-paks are attached on drives with differential I/O. These terminator resistor-paks, which are dual inline packages, mount in sockets in the control board. These terminators are also marked with a dot above pin 1. If the drive is located at either end of the daisychain, ensure that it has resistor-pak(s)[...]

Installation 29 Internal Source J05 Drive T SP Spindle Sync Cable Select Plug J05 Drive (master) J05 Drive SP J05 Drive T SP ✴ 32 loads maximum Terminator ✴ Master designated by jumper or by initiator External Source T Spindle Sync Cable J05 Drive J05 Drive SP J05 Drive T SP 32 loads maximum Terminator SP Signal Source Synchronizing the spindle[...]

30 To enable the feature, it is necessary to run an additional daisychain cable from drive to drive and to make a master/slave selection for each drive. Connector J5 on the control board handles the cable connections. Master/slave selection is made by a jumper on connector J4A. Figure 15 shows the two connectors. For a drive at the end of the daisy[...]

Installation 31 For each drive in the middle of the daisychain, the cable from the preceding unit connects to one of the two rows of pins (row A or row B), and the cable to the next unit connects to the other row of pins. There are two ways to establish a drive as a master (supplying the sync reference signal to all drives connected for spindle syn[...]

32 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 Spinup Delay option jumpers on the control board. • If the Start Command option jumper was connected, the spindle spin[...]

Section 3. Operation This section provides the information and instructions to operate the drive. It includes the following topics: • Switches and indicators—locates and describes the switches and indicators used for normal drive operation. • Operating instructions—describes procedures for operating the drive. Switches and indicators Follow[...]

34 Note . Differential unit shown. Figure 16: Switches and indicators On / Standby Switch Socket for Active LED (red) Heartbeat LED (green) Active LED (on optional bezel) Ready LED (green) Control Board Drive Power Supply Standby = On = I[...]

Operation 35 Table 7. Switches and indicators Switch or Indicator Function Power supply On/standby switch Applies DC operating voltages to the drive electronics and (on/ ) power supply fan when placed in the on ( l ) position. Drive control board Ready LED This LED flashes during the power on sequence until the (green) discs are up to speed and the[...]

36 Operating instructions Following initial checkout, the drive normally requires no attention from the operator. DC power is available to the drive, as the on/standby switch on the power supply is normally left in the on ( l ) position. If you wish to verify that the drive has completed its power on sequence, gain access to the drive, and check th[...]

Section 4. Parts data This section lists part numbers of options and accessories that can be used in a drive installation. Because the drive is depot repairable, there are no field- replaceable parts. If the drive requires maintenance, refer to the instructions in section 5. Within the continental U.S., you can order accessories from: Seagate Techn[...]

38 Table 8 below lists the part numbers for options and accessories for system installation. Table 8. Options and accessories Part Number Description 12263496 Static ground wrist strap, 6 1/2 to 8 inch wrist ** I/O cables ** External terminators 96752447 Terminator resistor-pak, single-ended 15479501 Terminator resistor-pak, differential 47188890 P[...]

Section 5. Maintenance This section contains the following maintenance information: • Observing maintenance precautions • Arranging for depot repair • Removing and replacing a drive • Removing and replacing a power supply • Packing a drive for shipment Observing maintenance precautions Because the drive is depot repairable, there are no f[...]

40 Arranging for depot repair Before returning any units to Seagate, it is necessary to obtain a returned material authorization (RMA) number. To get the number, you will need to know the part number and serial number of the unit. These numbers appear on a label located on the front surface of the HDA. Then contact: Seagate Technology, Inc. Custome[...]

Maintenance 4 1 Removing and replacing a power supply To remove a power supply for maintenance, perform the following steps: 1. Remove power from the drive by setting the On/Standby switch on the power supply to the Standby position. 2. Disconnect the AC power cable from site power. 3. Disconnect the DC power cable from the DC power connector on th[...]

42[...]

Maintenance 4 3[...]

44 Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, CA 95066-4544, USA Publication Number: 83327630, Rev. A[...]