HP PL Class 450/500/550/600/650/700/750 User Manual page 51

Before Installing a
SCSI Hard Disk
NOTE
How to Install Accessories In Your HP Visualize Linux Workstation
If you are installing an additional SCSI drive, you should assign an
unused SCSI address to this accessory. SCSI addresses range from 0 to 7
for Ultra narrow 8-bit SCSI and from 0 to 15 for Ultra wide 16-bit SCSI.
SCSI address 0 is used by the first SCSI hard disk drive and SCSI
address 7 is reserved for the integrated SCSI controller (the default for
narrow and wide SCSI devices).
You do not need to select a SCSI address for Plug and Play SCSI hard
disks (SCSI hard disks that support the SCAM protocol).
You should assign an unused SCSI address to the second SCSI hard disk
drive (for example, SCSI address 1).
The SCSI address is usually configured with jumpers on the SCSI hard
disk drive. Refer to the installation guide supplied with the drive for
information on selecting a SCSI address.
Some internal SCSI disk drives may have termination resistors that
must be removed or disabled before installation in your computer. Refer
to the drive's installation guide for more details and to see if there is a
special installation procedure to follow.
Chapter 2
Installing Mass Storage Devices
35