User manual MAXTOR ST34555N INSTALLATION

[. . . ] · ·· · · ·· · · ·· · · ·· · ·· · · ·· · · ·· Hawk 4XL · ·· · · ·· · · ·· · · ·· · ·· · · ·· · · ·· Disc Drive · ·· · · ·· · · ·· · · ·· · ·· · · ·· · · ·· ST34555N/W · ·· · · ·· · · ·· · · ·· · ·· · · ·· · · ·· · ·· · · ·· · · ·· · · ·· · ·· · · ·· · · ·· Installation Guide · ·· · · ·· · · ·· · · ·· · ·· · · ·· · · ·· Contents Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Electrostatic discharge protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Important safety information and precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Wichtige Sicherheitshinweise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Regulatory agency compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Seagate technical support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 General description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Initial setup information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Kühlung des Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The system may or may not use the existing drive ID jumper settings. Setting the drive ID doesn't hurt anything, but is not necessary in a SCAM compliant system. Most Hawk disc drives are factory set with the SCSI ID set at 0. To change the SCSI ID, refer to the appropriate drive section for your model. If, after completing the installation process, the drive's LED does not show on/off activity when the host is trying to communicate with the drive, a duplicate SCSI ID may be the problem. If this is 20 Hawk 4XL Installation Guide, Rev. A the case, change the ID so that each device on the SCSI chain has its own unique ID. Also check your system or controller user's manual to ensure that you have not violated its SCSI ID numbering recommendations. Drive termination If you are installing a Hawk drive in a system that has other SCSI devices installed, terminate only the end devices on the SCSI chain. A SCSI "device" is any disc drive, scanner, tape backup unit, or other piece of hardware connected to your system using the SCSI bus. The top example in Figure 2 shows an internal hard disc at one end of the SCSI bus with the SCSI controller at the other end (both are terminated). The bottom example shows two additional SCSI devices connected externally--this means the SCSI controller is no longer on the end of the SCSI chain and should not be terminated. Some controllers prefer to remain terminated even if they are in the middle of the chain. Also, some controllers treat the internal and external chains as separate logical buses. This means you may need to terminate both the first and last devices on both logical buses to achieve proper termination. If necessary, refer to your system or controller documentation to see how this is handled in your particular system. Hawk 4XL Installation Guide, Rev. A 21 For information about how to terminate your drive, refer to the appropriate drive-specific section. Internal SCSI cable Internal SCSI device Internal SCSI device Terminate Internal SCSI cable Internal SCSI device Internal SCSI device Controller External SCSI cable Controller External SCSI device External SCSI device Terminate Figure 2. SCSI bus termination Terminator power You usually will not need to change this option and can normally leave the drive configured as it was shipped from the factory. For information about how to change the terminator power option on your drive, refer to the appropriate drive-specific section. I/O circuits and data path widths "W" models have a "wide" (16-bit) SCSI data bus rather than the standard (non-wide) 8-bit SCSI data bus; however, you can use these wide drives on a standard (non-wide) 8-bit data bus using a terminated 68-pin to 50-pin SCSI cable. Figures 3a, 3b, 3c, and 3d show typical drive connections. The following table lists the maximum cable lengths and number of devices with single-ended I/O circuits allowed on a daisy-chain cable for <10 and <20 M transfers/sec I/O data transfer rates. 22 Table 4. Hawk 4XL Installation Guide, Rev. A Cable characteristics for single-ended circuits Maximum number of devices on line Maximum cable length allowed I/O transfer rate <10 M transfers/s 8 (reg. SCSI bus) <10 M transfers/s 16 (wide SCSI bus) 6 meters (19. 7 ft. ) 6 meters (19. 7 ft. ) <20 M transfers/s 4 (reg. /wide SCSI bus) 3 meters (9. 8 ft. ) <20 M transfers/s 8 (reg. /wide SCSI bus) 1. 5 meters (4. 9 ft. ) For devices having differential I/O circuits, a maximum cable length of 25 meters (82 feet) is allowed. A maximum of 8 devices can be connected on an 8-bit wide data bus, and a maximum of 16 devices can be connected on a 16-bit wide data bus. Hawk 4XL Installation Guide, Rev. [. . . ] not used A 3 A 2 A 1A 0 SCSI ID = 15 Figure 12. Using J1-Auxillary connector for model "W" drive alternate ID select and LED connection 42 Hawk 4XL Installation Guide, Rev. A W drives Terminating the drive "W" model drives are terminated with permanently mounted IC active terminators. If you install one of these drives and it is not on the end of the SCSI bus, disable the terminators by removing the jumper "TE" from pins 15 and 16 of connector J2. [. . . ]