RAID Array 410 to 450 Upgrade
3–2
EK–SM410–UP. A01
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Systems that will be upgraded from AIX 3.2.5 to AIX 4.2 should be backed up prior
to the AIX and RAID Array 450 controller upgrades. The use of this method ensures
that full and complete backups of a functioning system are made before any changes
are undertaken.
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One platform kit is required for each controller. In addition to other components, the
platform kit includes the HSOF Version 5.0 Program Card required for controller
operation.
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Included with the RAID Array 450 Version 5.0 software is the StorageWorks
Command Console (SWCC) Agent. The SWCC Agent requires a dedicated
communications LUN for normal operation. This LUN requires only a minimal
amount of storage, 1 block. While it is not difficult to create the communications
LUN, it does require that a device be available. Instructions on how to create the
communications LUN can be found in Chapter 2 of the Getting Started RAID Array
450 for IBM AIX.
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This procedure documents existing RAID Array 410 single controller to single
controller upgrades and dual-redundant to dual-redundant controller upgrades only.
To upgrade a single controller to a dual-controller configuration, first perform the
single to single upgrade described herein. Once that upgrade is complete, add the
second controller using the procedure described in Chapter 1, Section 1.8 of the
Getting Started RAID Array 450 for IBM AIX.
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During this upgrade procedure do not add, remove, or move any devices. Any device
configuration changes can be made when the upgrade is completed and verified.
Ensure that the RAID Array is operating normally, that is, no failed drives, batteries,
or storagesets.
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After removing the old controller, return the controller and PC Card in accordance
with the instructions contained in the customer letter found in the RAID Array 450
platform kit.
3.1.2 Tools Required
You need the following tools to remove or replace the controller module:
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ESD (ElectroStatic Discharge) strap
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Medium blade screwdriver for module replacement
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Small blade screwdriver for trilink and external cache battery cable fasteners
3.1.3 Precautions
In general, you should follow routine ESD protection procedures when handling
controller modules and cache modules and when working around the cabinet and shelf
that houses the modules.
Follow these guidelines to further minimize ESD problems:
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Use ESD wrist straps, antistatic bags, and grounded ESD mats when handling
controllers and cache modules.
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Obtain and wear an ESD wrist strap on your wrist. Make sure the strap fits snugly.
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Attach the lead on the ESD strap to a convenient cabinet grounding point.
