Shelf Technology Overview; Expansion Unit Exn3000; Overview - IBM N series Hardware Manual

5.1 Shelf technology overview

This section gives an overview of the N Series expansion unit technology. Figure 5-1 shows
the shelf topology comparison.
Figure 5-1 Shelf topology comparison

5.2 Expansion unit EXN3000

The IBM System Storage EXN3000 SAS/SATA expansion unit is available for attachment to N
series systems with PCIe adapter slots.
The EXN3000 SAS/SATA expansion unit is designed to provide SAS or SATA disk expansion
capability for the IBM System Storage N series systems. The EXN3000 is a 4U disk storage
expansion unit. It can be mounted in any industry standard 19-inch rack. The EXN3000
includes the following features:
Dual redundant hot-pluggable integrated power supples and cooling fans
Dual redundant disk expansion unit switched controllers
Diagnostic and status LEDs

5.2.1 Overview

The IBM System Storage EXN3000 SAS/SATA expansion unit is available for attachment to
all N series systems except N3300, N3700, N5200, and N5500. The EXN3000 provides
low-cost, high-capacity, and serially attached SCSI (SAS) Serial Advanced Technology
Attachment (SATA) disk storage for the IBM N series system storage.
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IBM System Storage N series Hardware Guide