Quantum DAT 160 User's Guide download pdf (Page 69)

Appendix B SCSI Configuration Guide

Setting Up the SCSI Bus

Quantum DAT 160 User’s Guide 55

Setting Up the SCSI Bus 2

Each device on a SCSI bus, including the SCSI host bus adapter (HBA),

must be configured with a unique ID (identifier). The SCSI bus must be

terminated.

SCSI ID Numbers 2 For wide SCSI buses, the SCSI ID will be a number from 0 through 15, so

a typical wide SCSI HBA can accommodate up to fifteen other devices.

(On narrow SCSI buses, the SCSI ID is a number from 0 through 7.)

Each device must have a unique SCSI ID. The drive can be assigned any

unused ID between 0 and 15. Do not use SCSI ID 7, which is reserved for

the SCSI controller. SCSI ID 0 is typically assigned to the boot disk and

should also not be used unless the tape drive is on a dedicated SCSI bus.

SCSI ID 7 is normally reserved for the HBA because it has the highest

priority on the bus. On wide buses, the priority runs from 7 (highest) to 0,

then 15 down to 8 (lowest).

Note: Quantum recommends that a dedicated host bus adapter is

used for the tape drive. A suitable adapter is available from

Quantum as an accessory (seehttp:www.quantum.com/

ServiceandSupport/Index.aspx).

Note: As a general rule, avoid putting tape devices on the same bus

as any hard disks.

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 81 82

No comments

Quantum DAT 160 User's Guide Page 69