HP Visualize J5000 hp Visualize J5000, J7000 workstations owner's guide (a4476 - Page 203
Determining, SCSI Bus, Length
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Fast, Wide SCSI-3 Bus Configuration Constraints Fast, wide SCSI-3 does not work with the single-ended standard SCSI-2. Table C-4 shows the configuration constraints for each fast, wide SCSI-3 device type. Table C-4. Fast, Wide SCSI-3 Bus Configuration Constraints External Fast, Wide SCSI-3 Devices Maximum Number of Each Type of Device Allowed SCSI-3 Drive (fast, wide disk drives only) 15 SCSI-3 Disk Arrays (addressed as single drive) 7 CAUTION: Do not mix single-ended and fast, wide SCSI peripherals together on the same bus. Determining SCSI Bus Length This section helps you to determine the total length of the single-ended standard SCSI-2 bus and the fast, wide SCSI-3 bus. Single-Ended SCSI-2 Bus Length Follow these instructions to calculate your total single-ended standard SCSI-2 bus length (including the system unit, external SCSI-2 devices, and SCSI-2 interconnect cables) using Table C-5: 1. Find all of your external SCSI-2 devices in the first column. In the third column, write the SCSI-2 bus lengths (from the second column) that correspond to your devices. NOTICE: In the third column, the length for the System Unit is already listed. This number must always be used for the system unit. C-9