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RAID Array Controller 2-3
Compaq Confidential – Need to Know Required
Writer: Bob Young Project: RAID Array 3000 Pedestal Storage Subsystem Hardware User’s Guide Comments:
Part Number: EK-SMCPO-UG. C01 File Name: c-ch2 RAID Array Controller.doc Last Saved On: 12/4/00 1:51 PM
Controller Features
The controller is the intelligent bridge between the host and the devices in the
pedestal. From the host’s perspective, the controller is simply another SCSI
device connected to one of its I/O buses. Consequently, the host sends its I/O
requests to the controller just as it would to any other SCSI device. Figure 2–1
shows the role of the controller between the host and the pedestal.
Figure 2-1. Bridging the gap between the host and the pedestal