IBM DS3950, Руководство пользователя и инструкция по установке

Страница: 25 / 186

Chapter 1. Introduction
This chapter describes the operating specifications, features, and components for
the IBM System Storage EXP395 storage expansion enclosure (hereafter referred to
as the
EXP395 or storage expansion enclosure ). This chapter also includes a list of
hardware that comes with the storage expansion enclosure.
Overview
The IBM System Storage EXP395 storage expansion enclosure (Machine Type 1814,
Model 92H) provides high-capacity, fibre channel and SATA disk storage for the
DS3950 storage subsystem. The storage expansion enclosure delivers fast,
high-volume data transfer, retrieval, and storage functions for multiple drives to
multiple hosts. The storage expansion enclosure provides continuous, reliable
service, using hot-swap technology for easy replacement without shutting down
the system and support redundant, dual-loop configurations. External cables and
Small Form-Factor Pluggable (SFP) modules connect the DS3950 storage subsystem
to the EXP395 storage expansion enclosure.
Note: The EXP395 storage expansion enclosure can be attached only to the DS3950
storage subsystem.
The EXP395 is a rack-mountable enclosure that supports up to 16 600 GB
fibre-channel or FC-SAS Enhanced Disk Drive Modules (E-DDMs), or 2 TB SATA
E-DDMs, offering up to 9.6 terabytes (TB) of fibre-channel disk space or 32 TB of
SATA disk space per enclosure. Coupled with a DS3950 storage subsystem, you
can configure RAID-protected storage solutions of up to 224 TB, providing
economical and scalable storage for your rapidly growing application needs for
limited access, data reference storage capacity.
In this document, the term FC-SAS refers to a SAS drive with a FC-SAS interposer.
The EXP395 uses the latest fibre channel, SAS, and SATA technology and is
designed with redundant 4 Gbps fibre channel connections to the DS3950 storage
subsystem offering reliability and performance.
Note: Combining EXP810 and EXP395 storage expansion enclosures with the
DS3950 storage subsystem requires a purchase option. Contact your IBM
marketing representative for more information.
The EXP395 supports redundant, dual drive channel/loop configurations with
DS3950 storage subsystems and other EXP395 enclosures. External cables and small
form-factor pluggable (SFP) modules connect the controller to the storage
expansion enclosure. EXP395s attached to supported DS3950 storage subsystems
can be used with storage area networks to satisfy the needs of various fixed
content, data reference applications that require large amounts of storage capacity
but do not have the high utilization and access characteristics satisfied by fibre
channel disk drive storage. The storage expansion enclosure provides continuous,
reliable service and uses hot-swap technology for easy replacement without the
need to shut down the system. Up to six EXP395 units can be connected together
with the DS3950 storage subsystem in a redundant fibre-channel drive
channel/loop pair, providing connections to a maximum of 112 hard drives.
© Copyright IBM Corp. 2009, 2013
1