Upgrading The Ds4300 Model 60U/60X From Standard To Turbo Option; Steps For Hot-Swap Raid Controller Upgrade - IBM TotalStorage DS4300 Installation, User's, And Maintenance Manual

28. Enable full controller redundancy by making appropriate FC connections
29. In the host server, reestablish the I/O connections to the mapped LUNs by
30. If this is the Turbo upgrade option, follow the Web activation instructions

Upgrading the DS4300 Model 60U/60X from standard to Turbo option

If you have purchased the DS4300 Turbo option, you must replace your existing
256-MB memory controllers to 1-GB memory controllers shipped as part of the
option. You should perform this upgrade with the power on as a hot-swap. It is also
possible to perform this procedure as a cold-swap.
Note: A controller hot-swap replacement is when the controllers are replaced one
This section contains the following procedures:
v "Steps for hot-swap RAID controller upgrade"
v "Steps for cold-swap RAID controller upgrade" on page 115

Steps for hot-swap RAID controller upgrade

Important:
between controller B's host ports and the HBA ports in the servers that are
connected to controller A. You must also install the LUN failover driver in the
host server.
Note: If the failover driver is already installed, you might have to reconfigure
the failover settings, reboot the server, or both—depending upon which
failover driver you used. If you do not install or reconfigure the failover
driver, you will not have controller redundancy protection.
mounting the file systems or adding drive letter/mount points.
Note: You may have to reboot servers that use Microsoft Windows operating
systems to enable them to recognize the drives.
provided in the upgrade kit to activate the Storage Partitioning Premium
Feature and register the ability to attach seven additional DS4000 EXP storage
expansion enclosures.
at a time while the storage subsystem is powered on. Care must be
exercised to ensure a successful upgrade. Hot-swap is the preferred method
for upgrading your controllers. A controller cold-swap replacement is when
both controllers are replaced at the same time after the storage subsystem is
powered off. Power is turned back on to the storage subsystem after the
controllers are replaced.
v You cannot hot-swap the RAID controller of a DS4300
single-controller storage subsystem (Model 6LU/6LX).
v You must install the latest version of Storage Manager client software
in the management workstation or in the host server connected to
the DS4300 that will be upgraded before you replace the old
controller with the new controller. For more information, see the IBM
DS4000 Storage Manager Installation and Support Guide for your
operating system, or the following Web site:
www-1.ibm.com/servers/storage/support/disk/
v This procedure must be done when the DS4300 system is at a low
I/O state. It is preferred that no I/Os are made to the DS4300 server
while the storage subsystem is being upgraded.
Chapter 5. Installing and replacing components
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