Hard Drives
Drive Cabling Considerations
The number of devices you can install depends on: The number supported by the bus
The number of physical drive bays available The combination of SCSI and IDE devices
You should route cables to minimize airflow disruption. Air flows from the front to the rear of the chassis. You should route IDE and diskette drive cables behind the
IDE Requirements
An
For proper IDE operation, note the cable length specified in the following figure. If no drives are present on an IDE channel, the cable must be removed. If only one drive is installed, it must be connected at the end of the cable.
Baseboard
12" | 6" |
Drive 1 | Drive 0 |
18" |
|
OM05093
Figure 15. IDE Cable Dimensions
SCSI Requirements
All SCSI devices must be unterminated except the peripheral at the end of the SCSI cable. Hard drives usually provide an active termination, while
Installing a Hard Drive into the IDE drive bay
The IDE drive bay provides space for two
1.Observe the safety and ESD precautions at the beginning of this chapter.
2.Remove the IDE drive bay from the chassis.
3.Remove the drive from its protective wrapper, and place it on an antistatic surface.
4.Record the drive model and serial numbers in your equipment log.
5.Set any jumpers and/or switches on the drive according to the drive manufacturer’s instructions.
6.Slide the drive into the drive bay so the screw holes in the drive and the bay line up. For the best cooling, the component side of the drive should face away from the plate of the drive bay.
Working Inside the System | 27 |