SCSI Connections

 

 

 

 

SCSI Restrictions

 

 

 

 

 

 

 

CAUTION:

 

Do not mix narrow, single-ended SCSI, fast, wide differential SCSI, or ultra, wide-

 

 

SE SCSI peripherals on the same SCSI bus.

 

 

 

 

Fast, Wide, Differential SCSI Bus Configuration Constraints

 

 

 

 

FWD SCSI does not work with either SE SCSI.

 

 

Table 22 shows the configuration constraints for each FWD SCSI device

 

 

type.

 

 

Table 22

 

FWD SCSI Bus Configuration Constraints

 

 

 

 

 

 

 

 

 

 

FWD SCSI Devices

 

Maximum Number of Each Type

 

 

 

 

of Device Allowed

 

 

 

 

 

 

 

 

 

 

 

 

FWD SCSI Disk Drive (up to 2 internal)

 

15

 

 

 

 

 

 

 

FWD SCSI Disk Arrays (addressed as single

 

7

 

 

drive)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION:

 

Do not mix narrow, single-ended, fast, wide differential, or ultra, wide-SE SCSI

 

 

peripherals together on the same bus.

 

 

 

 

Ultra, Wide-SE SCSI Bus Configuration Constraints

 

 

 

 

Ultra, wide single-ended SCSI does not work with narrow, single ended or fast wide

 

 

differential SCSI. Table 22 shows the configuration constraints for each ultra, wide-

 

 

SE SCSI device type.

 

 

Table 23

 

Ultra, Wide-SE SCSI Bus Configuration Constraints

 

 

 

 

 

 

 

Ultra, Wide-SE SCSI Devices

 

Maximum Number of Each Type

 

 

 

 

of Device Allowed

 

 

 

 

 

 

 

 

 

 

 

 

Ultra, Wide-SE SCSI Disk Drive (up to 2 internal)

 

4

 

 

 

 

 

 

 

Ultra, Wide-SE SCSI Disk Arrays (addressed as

 

1

 

 

single drive)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION:

 

Do not mix narrow, single-ended, fast, wide differential, or ultra, wide-SE SCSI

 

 

peripherals together on the same bus.

 

 

 

 

 

 

 

 

160