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C-10
Fast, Wide Differential SCSI Bus Configuration Constraints
Fast, wide differential SCSI does not work with the narrow, single-en-
ded SCSI. Table C–4 shows the configuration constraints for each
fast, wide differential SCSI device type.
Table C–4. Fast, Wide Differential SCSI Bus Configuration Constraints
External Fast, Wide Differential SCSI Devices
SCSI-3 Drive (fast, wide disk drives only) 15
SCSI-3 Disk Arrays (addressed as single drive) 7
Maximum Number of Each
Type of Device Allowed
CAUTION: Do not mix narrow single-ended, ultra, wide–
SE and fast, wide differential SCSI peripherals
together on the same bus.
Ultra, Wide Single–Ended SCSI Bus Configuration Constraints
Ultra, wide–SE SCSI does not work with the narrow, single-ended
SCSI or FWD SCSI. Table C–5 shows the configuration constraints
for each ultra, wide–SE SCSI device type.
Table C–5. Ultra, Wide–SE SCSI Bus Configuration Constraints
External Ultra, Wide–SE SCSI Devices
Ultra, Wide–SE Drive (ultra, wide disk drives only) 2
Ultra, Wide–SE Disk Arrays (addressed as a
single drive)
1
Maximum Number of Each
Type of Device Allowed
CAUTION: Do not mix narrow, single-ended, ultra, wide–
SE and fast, wide differential SCSI peripherals
together on the same bus.