HP Xw8200 HP Workstation xw8200 Service and Technical Reference Guide (Complet - Page 143

Jumpers, Appendix

Page 143 highlights

Appendix A and failure indication parameters, such as re-allocated sector count, spin retry count, and calibration retry count. If the drive determines that a failure is imminent, it generates a fault alert. Jumpers All SCSI controllers require a unique SCSI ID (0-15) for each SCSI device installed. The controller identifies a SCSI device by its SCSI ID number rather than its location. Moving a SCSI device from one position to another on the SCSI chain does not affect communication between the controller and the device. The reserved and available SCSI ID numbers are displayed in the following list: „ 0 is reserved for the primary hard drive (not reserved for the primary hard drive on Linux). „ 7 is reserved for the SCSI controller. „ 1 through 6 and 8 through 15 are available for all other SCSI devices. When 0 is used for the primary hard drive, set the second hard drive to 1, the third to 2, and so on. To set the SCSI ID on a drive, see the instructions on top/back of the hard drive for the correct jumper settings. The drive probably displays a diagram of the jumper block. This diagram shows you which blocks to cover with your jumper to get the desired ID. For example, if the drive needs to be set to 3, the drive might show that the 3 ID bits are at the far left of the connector (ID0, ID1, ID2, and ID3), then using the jumpers provided, cover each block to set the SCSI ID. NOTE After changing the jumper settings, reboot the workstation to recognize the new address. JUMPERS 143

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JUMPERS
143
Appendix A
and failure indication parameters, such as re-allocated sector count, spin retry count, and calibration retry count. If
the drive determines that a failure is imminent, it generates a fault alert.
Jumpers
All SCSI controllers require a unique SCSI ID (0–15) for each SCSI device installed.
The controller identifies a SCSI device by its SCSI ID number rather than its location. Moving a SCSI device from
one position to another on the SCSI chain does not affect communication between the controller and the device.
The reserved and available SCSI ID numbers are displayed in the following list:
0 is reserved for the primary hard drive (not reserved for the primary hard drive on Linux).
7 is reserved for the SCSI controller.
1 through 6 and 8 through 15 are available for all other SCSI devices.
When 0 is used for the primary hard drive, set the second hard drive to 1, the third to 2, and so on.
To set the SCSI ID on a drive, see the instructions on top/back of the hard drive for the correct jumper settings. The
drive probably displays a diagram of the jumper block. This diagram shows you which blocks to cover with your
jumper to get the desired ID.
For example, if the drive needs to be set to 3, the drive might show that the 3 ID bits are at the far left of the
connector (ID0, ID1, ID2, and ID3), then using the jumpers provided, cover each block to set the SCSI ID.
NOTE
After changing the jumper settings, reboot the workstation to recognize the new
address.