User manual MAXTOR ST12450W INSTALLATION

[. . . ] Installation Guide ST12450W/WD Disc Drive BARRACUDA 2, 2HP Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Electrostatic discharge protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Important safety information and precautions . . . . . . . . . 2 Wichtige Sicherheitshinweise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 9 Where power is provided to multiple drives from a common supply, carefully consider individual-drive power requirements. Where multiple units are powered on simultaneously, be sure the peak starting current is available to each device. 10 Operating condition is a third-stroke seek at OD and Read One Track. The command is issued every 0. 07 seconds for ST12450WD models and every 0. 075 seconds for ST12450W models. ST12450W/WD Installation Guide, Rev. See Section 11. 7. 3. 4 in the Barracuda 2, 2HP Product Manual. 12 Seeking is defined as a third-stroke seek at OD. 13 Read track is defined as repeat reads of track 15 with a 60% duty cycle. Initial setup information The following topics are presented to guide you through the installation process. These topics are presented in the order you should follow to properly install the drive. Setting the SCSI ID jumpers Terminating the drive Changing other applicable jumper options Synchronizing spindles in multiple-drive configurations (optional) · Providing adequate cooling · Mounting the drive and connecting cables · Formatting the drive Several illustrations are provided to make the installation process easy. Write down the original jumper settings before you make any changes. This makes it easy to revert to the original configuration if necessary. · · · · 18 ST12450W/WD Installation Guide, Rev. B Setting the SCSI ID jumpers Each device on the SCSI chain must have a unique SCSI ID. The host system's SCSI controller usually uses the highest-numbered ID available (ID15 in wide systems); therefore the lower-numbered SCSI IDs are normally used for the other SCSI devices such as this Barracuda disc drive. Most SCSI controllers (host adapters) allow you to skip a SCSI ID. For example, you can have ID0, ID1, and ID3 (skipping ID2). Other controllers do not allow this so be sure to refer to your system or controller user's manual for details about its requirements for proper SCSI device installation. Use connector J5 to set the SCSI ID (Figure 2). Most Barracuda disc drives are factory set with the SCSI ID set at 0. To change the SCSI ID, install jumpers on the appropriate pins as shown in the illustration. 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 the case, change the ID so that each device on the SCSI chain has its own unique ID. [. . . ] B 33 oder gedrückt werden und es darf den Luftstrom zur Kühlung des Systems nicht behindern. Das Laufwerk wird über einen 4-poligen, neben dem SCSI-Anschluß befestigten Steckverbinder mit Gleichstrom versorgt. Der Ausgang eines Netzteils muß SELV (safety extra low voltage) nach IEC 950 entsprechen. Abbildung 10 zeigt die Steckerbelegung für den Gleichstromanschluß. [. . . ]