Exp3500 Storage Enclosure Overview - IBM DS3500 Installation, User's, And Maintenance Manual

DS3500 is a 2U rack-mountable storage subsystem that supports up to two
redundant, dual-active RAID storage controllers. The DS3500 storage subsystem
ships with two 6 Gbps x4 SAS host ports and a single 6 Gbps x4 SAS expansion
port per controller. Each controller contains 1 GB of cache memory that can be
upgraded to 2 GB. Each controller supports installation of the following host port
adapters:
v 6 Gbps SAS
v 8 Gbps FC
v 1 Gbps iSCSI
v 10 Gbps iSCSI
When attached to EXP3500 storage enclosures, the DS3500 storage subsystem can
be expanded to support 96 drives. This configuration can be expanded to 192
drives when using the 96-192 drive expansion upgrade. The DS3500 storage
subsystem and EXP3500 storage enclosures support configurations of 6 Gbps SAS,
Near Line (NL) SAS, Solid State Disk (SSD), 6 Gbps SAS Full Disk Encryption
(FDE) disk drives, or a mix of disk drives. You must purchase the Full Disk
Encryption (FDE) option so that you can use FDE.
Advanced DS3500 storage management, copy service options, and optional
advanced disaster recovery functions are available for the DS3500, including
®
FlashCopy , VolumeCopy, and Enhanced Remote Mirroring.
Note: Enhanced Remote Mirroring is supported on the dual-controller DS3500
models only.
Depending on the model, the DS3524 storage subsystems are shipped with either
ac or dc (-48V dc) power supply and fan units.
DS3524 storage subsystems that are equipped with dc power supply and fan units
(1746 model C4T) supports both NEBS level 3/Telco operating environments and
standard Information Technology (IT) and office environments.
DS3512 and DS3524 storage subsystems that are equipped with ac power supply
and fan units support both NEBS level 3/Telco operating environments and
standard IT and office environments.
The IBM System Storage DS Storage Manager version 10 software is also available
for the DS3500 storage subsystem. This storage-management software is designed
to help centralize storage management, simplify partitioning of the DS3500 series
storage into as many as 128 virtual servers, and strategically allocate storage
capacity to maximize storage space.
Using the hot-swap features, you can remove and replace SAS drives, power
supplies, and controllers (in a dual-controller storage subsystem).

EXP3500 storage enclosure overview

An overview of the EXP3500 storage subsystem is provided here.
The EXP3500 is a 2U rack-mountable storage enclosure that is equipped with a
single environmental services module (ESM), which can be expanded to dual
redundant ESM when you install the optional ESM kit. The EXP3512 storage
enclosure supports up to 12 drives and the EXP3524 storage enclosure supports up
to 24 drives.
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Chapter 1. Introduction