Apple Workgroup Server 9150/120 - Manual (Page 61)

Connecting an external SCSI device
The SCSI port for connecting external devices to the server is located on the
server’s back panel.
To connect a SCSI device to your server:
1 Turn off your server.
2 Make sure the SCSI device is switched off.
3 Make sure the device has its own, unique ID number between 0 and 6.
See the earlier section “Setting the SCSI ID Number” for details.
WARNING Do not connect or disconnect any device while the device or
your server is turned on. Doing so could damage the device, your server,
or both.
SCSI port
SCSI icon
Connecting hard disks and other SCSI devices 45