436 IBM Midrange System Storage Hardware Guide
DS5000 controller replacement
Under rare circumstances, it is possible that after replacing a failed DS5000 controller, the
World Wide Port Names could be changed on the resident as well as the replaced
controller. If a user has his Fibre Channel switch zoned by WWPN, this will cause a loss of
access. The zoning configuration on Fibre Channel switches must be adjusted. It is also
possible to see this exceptional condition after performing a DS5000 controller firmware
upgrade.
There is a feature for automatic code synchronization of the controllers in case one is
replaced. This ensures that both controllers execute the same level of firmware.
7.11 HBAs and operating system tools
This section provides practical information for problem determination on specific OS platforms
and HBAs when you use Storage Manager utilities such as mppUtil and SMDevices, and
other common operating system (OS) dependent commands used for reviewing disks status
and data collection.
7.11.1 Brocade HBA and Brocade Host Configuration Manager (HCM)
This section gives a brief introduction to the Host Configuration Manager (HCM) for Brocade
FC HBAs.
Brocade offers different software to manage their HBAs. A list of software bundles that are
downloadable from the Web can be found at the following address:
http://www.brocade.com/sites/dotcom/services-support/drivers-downloads/HBA/HBA_IBM
.page
The software bundles consist of the following items:
Brocade Adapter Software installer
This package enables a single step installation for all software components, including Host
Connectivity Manager (HCM), Drivers, Firmware, Agent, Brocade Command Utility (BCU),
and APIs.
Driver
This is a single driver package (per OS and server platform) for supporting all Brocade
HBAs. The drivers will be packaged appropriately for each operating system.
Firmware
The adapter firmware is bundled as part of the driver, and will be automatically updated
after the driver is updated.
Multi-boot code image
A multi-boot code image (BIOS/EFI) allows an adapter to be plugged into a server to
support boot from SAN functionality for x86, IEM64T, AMD64, and IA64 server platforms.
Server administrators can set up a bootable LUN in the SAN through an easy to use
configuration utility menu.
Driver Update Disks (DUDs)
DUDs (provided in ISO and zip format) are needed to install the drivers during an OS
installation of a LUN attached to the SAN.
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