Filter
Top Products
System Overview 1-19
The backplane has two main functions: SCSI drive control and system data
logging. Drive status is monitored to detect failing drives and to control LED
indicators. The backplane features include the following:
insertion and removal of hard drives while power is on (referred to as
“hot swap”)
simplified cable management
SCA connectors to simplify inserting and removing hard drives
SCSI management of fault LEDs.
Each backplane supports SCSI drives with SCA connectors.
Removable Media Drive Bays
On the upper left side of the system, four 5 1/4-inch half-height bays (see
Figure 1-10) are designed for peripherals with removable media (diskette, CD-
ROM, tape). Two available adjacent 5 1/4-inch bays can be converted to a
single full-height bay. The 5 1/4-inch drives can be removed directly from the
front of the chassis. Removal of the system top cover may be required to
install/remove the device cables. Cosmetic filler panel are installed over all
unused 5 1/4-inch bays.
Factory-installed CD-ROM reader plus
three bays for removable media
drives.
Factory-installed 3 1/2-inch diskette
drive plus second bay for removable
3 1/2-inch drive.
(Exterior doors shown open)
Figure 1-10. Removable Media Drive Bays
On the upper right side of the system, below the LCD panel, are two built-in
3 1/2-inch bays. One contains a 3 1/2-inch diskette drive that supports both 720
KB and 1.44 MB media (see Figure 1-10).
Note:
The SCSI termination resistors must be installed in
the last SCSI drive of the daisy chain cabling (bottom media
bay). All other devices must have terminators removed.