Benutzeranleitung / Produktwartung ST43400N/ND des Produzenten Seagate
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Elite Disc Drive ST43400N/ND . . . . . . . . . . . . . . . . . . . . . . . . .
ii Contents Preface .................................................................................................... iii Electrostatic discharge protection ........................................................ ii i Important safety information and precautions .
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.
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.
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.
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.
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.
2 Table 1. Drive specifications Characteristics Conditions Specifications Size Dimensions See “Space requirements” in section 2 Weight (drive only) 3.
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.
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.
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.
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.
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.
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.
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.
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 Curren.
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.
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.
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.
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 D.
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.
18 Installation procedures With the site requirements completed, the enclosure designed, and the drive unpacked, you are ready to begin the installation.
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 T.
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.
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.
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.
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.
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.
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.
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.
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.
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 initi.
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.
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.
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.
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.
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 Boa.
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.
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.
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.
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 inc.
Section 5. Maintenance This section contains the following maintenance information: • Observing maintenance precautions • Arranging for depot repair • Removing and replacing a drive • Removing.
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.
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.
42.
Maintenance 4 3.
44 Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, CA 95066-4544, USA Publication Number: 83327630, Rev. A.
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