IBM DS4000 family

Mid-range disk storage products for an on-demand world

IBM System Storage DS4800

The IBM System Storage™ DS4800 disk storage system supports a high-performance 4 Gbps Fibre Channel interface. Increased host connectivity delivers the necessary bandwidth for high-throughput applications. Designed for data-intensive applications that demand increased connectivity, eight 4 Gbps host channels can help provide up to 1724 MBps of sustained bandwidth, allowing for high&45;throughput applications through eight channels directly attached to the host servers or connected to a Fibre Channel storage area network (SAN)

Disk ports 8 – 4 Gbps Fibre Channel
Host ports 8 – 4 Gbps Fibre Channel
Physical storage capacity 67.2 TB Fibre Channel/168 TB of Serial ATA (SATA)
Cache Up to 16 GB

IBM System Storage DS4700 Express

In a continuing effort to provide storage solutions that are designed to provide low total cost of ownership, high performance, robust functionality, and unparalleled ease of use, IBM offers the IBM System Storage™ DS4700 Express. As part of the DS4000 series, the DS4700 Express offers high-performance 4 Gbps capable Fibre Channel connections, up to 33.6 TB of Fibre Channel physical storage capacity, 112 TB of SATA physical storage capacity, and powerful system management, data management and data protection features. The DS4700 Express is designed to expand from workgroup to enterprise&45;wide capability with up to six Fibre Channel expansion units with the DS4000 EXP810 Expansion Unit.

Physical storage capacity 33.6 TB Fibre Channel, 168 TB SATA
Cache Up to 4 GB
Host ports 8 – 4 Gbps Fibre Channel (model 72), 4 – 4 Gbps Fibre Channel (model 70)
Disk ports 4 – 4 Gbps Fibre Channel


The IBM System Storage EXP3000 is a high-density 2U, 19" rack-mountable driven closure designed for supporting a total of 12 Serial Attached SCSI (SAS) 3.5-inch disk drives.

The dual-port MegaRAID 8480 adapter is optimized for cost-sensitive and space-limited environments that demand both feature-rich and high-performance solutions. The adapter delivers an intelligent and robust RAID solution supporting RAID levels 0, 1, 10, 5, and 50, and utilizing a high-performance Intel I/O processor for optimum RAID performance and a PCI-Express host interface for increased bandwidth.

Together, the EXP3000 and MegaRAID 8480 leverage leading Serial-attached SCSI (SAS), the new interface technology with broad industry commitment and interoperability behind it. A maximum of four EXP3000s can be cascaded from the MegaRAID 8480 adapter to support a total of 48 disks while simultaneously improving performance of the configuration due to higher number of disks.

IBM System Storage EXP3000 Features SAS 10,000-rpm capacities 73 GB, 146 GB, 300 GB

SAS 15,000-rpm capacities 36 GB, 73 GB, 146 GB

Point-to-point architecture

Customer replaceable components

Two SAS 4x connections at the rear of the board for external connections

Single ESM
MegaRAID 8480 features RAID 0, 1, 5, 10, and 50

64 logical drive support

Online capacity expansion

RAID level migration (RLM)

Configuration on disk (COD)

Patrol read & S.M.A.R.T. support

MegaRAID Manager GUI included with MegaRAID 8480


The IBM System Storage EXP420 Storage Expansion Unit (18128VH) is a Serial Advanced Technology Attachment (SATA) disk-only storage expansion unit for use with the DS4200 Express Model 7V.

Compact and scalable Compact, 3U rack-mount disk expansion enclosure that accommodates 16 DS4200 SATA Enhanced Value Disk Drive Modules (EV-DDMs), offering up to 8 TB of physical capacity per expansion unit.
Hot-swappable components Redundant, hot-swappable power supply and cooling components


The DS4000 EXP810 is the latest disk drive enclosure in the DS4000 Series of products. This 3U enclosure has 4 Gbps Fibre Channel (FC) interfaces, and supports up to 16 disk drives.

Scalable The 4 Gbps ready IBM System Storage EXP810 Storage Expansion Unit machine type (1812-81A) offers a new 16-bay disk enclosure for attachment to selected DS4000 Midrange Disk Systems, with up to 4.8 terabytes (TB) physical capacity per expansion unit using sixteen 300 GB disk drives. The EXP810 Storage Expansion Unit is designed to accommodate 2 Gbps Fibre Channel Enhanced Disk Drive Modules (E-DDM), as well as 4 Gbps Fibre Channel Enhanced Disk Drive Modules (E-DDM), or 4 Gbps Serial ATA Enhanced Disk Drive Modules(E-DDM).
AC and DC support Supports redundant (AC) or (DC) power and cooling modules, and ESM interfaces.

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Mark Hogan

Technical support