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3.1 Logical Names

3.1.1 Disk and Tape Devices

For SunOS 4.1.X the disk and tape logical device names correspond to entries in the /dev (devices) directory which control access to the physical devices. Some of the devices are:

Disks: sd - SCSI controllers, can control 2 disks.
xy - Xylogics 450/451 SMD controller, can control 2 disks.
xd - Xylogics 7053 controller, can control 4 disks.

Tapes: st - SCSI controller: 1/4" QIC, 8mm, 4mm DAT
xt - 1/2" high density Xylogics 472 controller
mt - 1/2" low density Tapemaster controller, and others (sometimes linked to st)

CD-ROM: sr - SCSI controller

where SCSI stands for Small Computer System Interface.

Unix System Administration - 8 AUG 1996
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