Storage Devices; Table 3-1 Scsi Address Recommendations - Digital Equipment VAX 4000 108 User Information

Storage Devices

VAX 4000 Model 108 Systems support six storage devices, one standard RRDxx CD-
ROM drive, one standard RZ2x disk drive, two slots for either 3.5-inch or 5.25-inch
removable media or non-removable media devices, and two additional slots which can
accommodate only 3.5-inch x one-inch high hard drives (RZ2x). See Figure 1-1 and
Figure 3-9.
General Information on Installing Drives
This section covers general drive installation information, including internal and external
SCSI drives, external SCSI, and cable layouts.
SCSI Addresses (SCSI ID's)
Before installing a SCSI device, you must either set or verify the setting of the device's
SCSI address (SCSI ID). The SCSI controller chip is normally assigned device ID 6.
Digital recommends that you use Table 3-1 as a guide for the selection of an address for
your SCSI drive.

Table 3-1 SCSI Address Recommendations

SCSI Address (ID)
0
1
2
3
4
5
6
7
Refer to Appendix F, Setting SCSI Ids, and the section on SCSI Connectors in
Appendix E, Technical Specifications, for additional information.
Device (Drive) Recommended
Expansion
Expansion/hard drive
Expansion/hard drive
System disk (where your operating system resides)
CD-ROM drive
Expansion
Host adapter (SCSI controller) - Default
Expansion
VAX 4000 Model 108 User Information 3–7
Installing Hardware Options