EK–SMCPR–UG. A01
387404-001
1–1
1
Product Description
This chapter describes the RA8000 and ESA12000 Storage Subsystems including the Ultra Small
Computer System Interface (SCSI-3) connections (ports) for StorageWorks building block (SBB)
shelves.
1.1
Subsystem Overview
The RA8000 and ESA12000 Storage Subsystems are members of Compaq’s
StorageWorks family of modular enclosures. They share a common major component, the
BA370 Rack Mountable Enclosure (Figure 1-1), that includes an Environmental Monitor
Unit (EMU), a Power Verification and Addressing (PVA) module, power supplies, and
an AC Power Entry Controller. StorageWorks storage devices, redundant power supplies,
array controller(s), cache module(s), External Cache Battery (ECB), and redundant ac
power entry controllers may also be included. Figures 1-2 , 1-3A, and 1-3B show three
possible BA370 configurations.
Figure 1–1 BA370 Rack Mountable Enclosure
CXO5797A