Highlights; Exp5060 Expansion Enclosure - IBM Midrange System DS4000 Series Hardware Manual

A 3U rack-mountable enclosure houses the DS5020 redundant, dual-active RAID controllers
with either four Fibre Channel ports or two Fibre Channel and two iSCSI ports per controller.
The DS5020 can be configured for the attachment of host servers and EXP520 and EXP810
storage expansion enclosures and up to 16 4 Gbps Fibre Channel or SATA E-DDMs. The
base DS5020 storage subsystem controllers each have four Fibre Channel ports.
The DS5020 Machine Type is 1814-20A.
The IBM System Storage EXP520 storage expansion enclosure (Machine Type 1814, Model
52A) provides high-capacity, Fibre Channel and SATA disk storage for the DS5020 storage
subsystem. Up to six EXP520 expansion units can be attached to the DS5020 disk
subsystem, providing modular storage solutions for up to 112 TB physical storage capacity.
The EXP520 machine type is 1812-52A.

2.5.1 Highlights

Some highlights of this system are:
The IBM System Storage DS5020 disk system is designed to deliver high performance,
advanced function, high availability, and modular and scalable storage capacity.
It supports RAID 0, 1, 3, 5, 6, and 10.
It provides SAN-attached 8 Gbps Fibre Channel (FC) host connectivity, as well as optional
1 GbE iSCSI host connectivity.
It accommodates up to 16 disk drives installed within the DS5020 enclosure with
attachment support for up to six EXP520 expansion units, providing modular and highly
scalable storage solutions that range up to 112 TB physical storage capacity.
It supports an intermix of SATA drives, FC drives, and encryption-capable FC drives within
the DS5020 and EXP520 enclosures.
See Chapter 3, "IBM System Storage DS4000 and DS5000 hardware" on page 23 for more
details about the DS5020 and EXP520.

2.6 EXP5060 expansion enclosure

The IBM System Storage EXP5060 storage expansion enclosure provides high-capacity
SATA disk storage for the DS5100 and DS5300 storage subsystems. The storage expansion
enclosure provides continuous and reliable service by using hot-swap technology for easy
replacement, without shutting down the system, and supports redundant, dual-loop
configurations. External cables and Small Form-Factor Pluggable (SFP) modules connect the
DS5100 or DS5300 storage subsystem to the EXP5060 storage expansion enclosure. The
EXP5060 uses redundant 4 Gbps Fibre Channel to make connections to the DS5100 or
DS5300 storage subsystem and another EXP5060 storage expansion enclosure in a
cascading cabling configuration, offering reliability and performance.
Note: A maximum of eight EXP5060 storage expansion enclosures (with 480 hard drives)
can be attached only to the DS5100 and DS5300 storage subsystems and only SATA disks
are supported in the EXP5060 expansion.
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IBM Midrange System Storage Hardware Guide