IBM TotalStorage DS4500, User Manual

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Enclosures Installation, User’s, and Maintenance Guide . You can also refer to the
IBM TotalStorage DS4000 Hard Drive and Storage Expansion Enclosure Installation
and Migration Guide .
Intermixing DS4000 EXP100s with DS4000 EXP710s and EXP700s: You can
intermix DS4000 EXP100s SATA storage expansion enclosures with either DS4000
EXP710s, DS4000 EXP700s, or both EXP710s and EXP700s, in the same pair of
redundant drive loops with a DS4500 Storage Server, but all DS4000 EXP710s
must be grouped together.
Important
The requirements for intermixing DS4000 EXP100s with either DS4000
EXP710s, DS4000 EXP700s, or both EXP710s and EXP700s, state that all
DS4000 EXP710s in the same pair of redundant drive loops must be grouped
together. IBM does not support intermixed drive loop configurations in which
all DS4000 EXP710s are not grouped together.
In order to attach DS4000 EXP100 or EXP710 storage expansion enclosures to a
DS4500 Storage Server, the DS4500 Storage Server controller firmware must be at
version 06.xx.xx.xx or higher. In addition, you must purchase the FC/SATA
Enclosure Intermix premium option to combine EXP100s with EXP700s or EXP710s
in the same DS4500 Storage Server configuration.
For more information on the cabling requirements and best practices for intermixing
EXP100s with EXP700s or EXP710s in the same DS4500 Storage Server
configuration, refer to the IBM TotalStorage DS4000 Fibre Channel and Serial ATA
Intermix Premium Feature Installation Overview that ships with the FC/SATA
Enclosure Intermix premium feature. You can also refer to the IBM TotalStorage
DS4000 Hard Drive and Storage Expansion Enclosure Installation and Migration
Guide .
Attention: The minimum DS4000 EXP100 ESM firmware requirement for
intermixing DS4000 EXP100s with DS4000 EXP710s or EXP700s is version 9554.
Before intermixing DS4000 EXP100s with DS4000 EXP700s or EXP710s, you must
verify that the ESM firmware for all DS4000 EXP100s is at version 9554 or higher.
As discussed in “Intermixing DS4000 EXP710s and DS4000 EXP700s” on page 16,
you must also verify that the ESM firmware for all DS4000 EXP710s and EXP700s
is at version 9326 or higher.
A fully configured DS4500 Storage Server supports a maximum of 16 IBM DS4000
EXP700, EXP710, or EXP100 storage expansion enclosures (8 storage expansion
enclosures per drive-loop pair), or 224 drives, using dual pairs of redundant drive
loops.
Ethernet interface ports
There are two Ethernet interface ports, one for each controller (Controller A and
Controller B). Use the Ethernet ports to directly manage storage subsystems.
Chapter 1. Introduction
17