IBM N Series - Unsupported Features

46 IBM System Storage N series Hardware Guide
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.