Configuration Rules

Disk drives must be Sun standard 3.5-inch wide UltraSCSI-compatible drives, either 1 inch or 1.6 inches high. UltraSCSI-compatible 1-inch and 1.6-inch high drives can be mixed in the same system.

The SCSI IDs for the disks are hardwired on the disk backplanes. There is no need to set any SCSI ID jumpers on the disk drives themselves. The SCSI target address (SCSI ID) of each disk drive is determined by the slot location where the drive is connected to its UltraSCSI backplane.

The disk drives share the internal SCSI bus with the SCSI removable media devices in the removable media assembly (RMA). The removable media SCSI cable provides the termination for the internal SCSI bus.

For information about implementing RAID configurations, see "About Disk Array Configurations and Concepts".