RAID controller module
Two power supplies(hot swappable)
Dual cooling fans (hot swappable)
Up to twelve disk drives (hot swappable)
The RAID Manager controller module provides disk array management services. It supports dual SCSI hosts on a 16-bit SCSI-2 bus. The two SCSI controllers inside the controller module manage data distribution and storage for up to twelve disk drives. The controllers also perform system status and fault detection functions.
The RAID Manager software allows you to reset the disk array in different RAID configurations
Figure 2-11shows a front view of a twelve drive system.