HP xw3100 Service And Technical Reference Manual page 142

Ultra ATA Drive Guidelines and Features
Scenario Two: a system has three devices. Using the Device Class Table in Section 4.3.1, the
device class for each is identified as:
Ultra ATA-100 hard drive = Class 1
Ultra ATA-100 hard drive = Class 1
CD-ROM drive = Class 3
Device Name
Ultra ATA-100 hard drive
Ultra ATA-100 hard drive
CD-ROM drive
G–4
Primary
Controller
Secondary
Controller
Attach Sequence - Three Device
Device
Class
1
1
3
Primary
Controller
Secondary
Controller
Empty HDD
4 1
Device 1 Device 0
Empty DVD-ROM
3 2
Device 1
Device 0
Position Controller
Number Name
Primary
1
Primary
4
Secondary
2
PrimaryHDD
HDD
1
4
Device 1 Device 0
Empty CD-ROM
3 2
Device 1
Device 0
Service and Technical Reference Guide, xw3100
Device
Number
0
1
0