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Microcode Maintenance
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For some problems, the service request number (SRN) might ask you to check the
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microcode package ID before you exchange any field-replaceable units (FRUs). You can
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determine the adapter microcode package ID in two ways:
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On the command line, give the following command:
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lsattr -E -l adapter -a ucode
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where adapter is the ID of the adapter that you want to check; for example, ssa .
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An example of a response to this command is:
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ucode 8F97. .nn Name of adapter code download False
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where nn is the adapter code package ID.
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Use the Display or Change Configuration or Vital Product Data (VPD) service aid (see
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the Diagnostic Information for Micro Channel Bus Systems manual) to display the VPD
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for the adapter. The first two characters of the ROS Level field contain the adapter
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code package ID.
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You can determine the disk drive microcode level by using the Display/Download Disk
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Drive Microcode SSA service aid (see the chapter on SSA Service Aids in the SSA
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Adapters: User's Guide and Maintenance Information manual).
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Note: During the configuration of the complete system, all the VPD files in the system
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are updated before any microcode is downloaded from the using system to the SSA
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subsystem. If the using system later downloads a new level of microcode to the
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subsystem, the VPD files in the system for the adapter do not show the ID of the new
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microcode package until the next time the configuration manager (cfgmgr) is run.
Adapter Microcode Maintenance
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Updates to microcode are loaded into the using system from diskettes. To load the
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microcode:
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1. Log on as root.
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2. Insert the SSA Adapter Microcode diskette into the drive rfd0.
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3. Type the command: installp -ac all
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4. Remove the SSA Adapter Microcode diskette.
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5. Run the cfgmgr command.
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6. If the subsystem has loops that contain two or more SSA adapters, and those
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adapters are installed in two or more using systems, load the adapter microcode, and
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run the cfgmgr command on each using system.
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If the level of the microcode that is stored in the using system is higher than the level of
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the microcode that is installed on the SSA adapter, or on the disk drives that are attached
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to it, the higher-level microcode is automatically downloaded to the adapter when the
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using system runs its configuration method.
Chapter 1. Reference Information
1-59
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