Installing drives, General installation guidelines, Scsi installation guidelines – Dell PowerEdge SC 430 User Manual
Page 46
Back to Contents Page
Installing Drives
Dell™ PowerEdge™ SC430 Systems Installation and Troubleshooting Guide
General Installation Guidelines
Installing SATA or SCSI Hard Drives
Installing a SCSI Controller Card
Installing 5.25-Inch Optical and Tape Drives
The drive bays in your system provide space for up to two SATA or SCSI hard drives, two 5.25-inch drives, and one optional diskette drive. See
Figure 6-1. Drive Locations Inside the System
General Installation Guidelines
SCSI Installation Guidelines
Although SCSI drives are installed in essentially the same way as other drives, their configuration requirements are different. To install and configure a SCSI
drive, follow the guidelines in the following subsections.
SCSI Interface Cables
SCSI interface connectors are keyed for correct insertion. Keying ensures that the pin-1 wire in the cable connects to pin 1 in the connectors on both ends.
When you disconnect an interface cable, ensure that you grasp the cable connector, rather than the cable itself, to avoid stress on the cable.
SCSI ID Numbers
Each drive attached to a SCSI controller must have a unique SCSI ID number from 0 to 15.
l
The SCSI hard drive from which the system boots is configured as SCSI ID 0.
l
If you install an additional SCSI drive or change your SCSI configuration, see the documentation for each SCSI drive for information on setting the
appropriate SCSI ID number.
SCSI Device Termination
SCSI logic requires that termination be enabled for the two drives at opposite ends of the SCSI chain and disabled for all drives in between. For internal SCSI
drives, termination is configured automatically. See the documentation provided with any optional SCSI drive you purchase for information on disabling
termination.
NOTE:
The SCSI controller card must be installed in PCI slot 3 or slot 5. See
Figure A
-3
.
NOTE:
SCSI devices installed by Dell are configured correctly during the manufacturing process. You do not need to set the SCSI ID for these drives.
NOTE:
There is no requirement that SCSI ID numbers be assigned sequentially or that drives be attached to the interface cable in order by ID number.