IBM pSeries 16 Bit LVD SCSI DVD-ROM Drive / DROM0020311


 DATE: Sept. 30, 2004

Table of Contents

IBM pSeries 16 Bit LVD SCSI DVD-ROM Drive

1.0 Microcode Change History:

2.0 AIX Requirements:

3.0 Determine the Current Microcode Levels:

4.0 Downloading and Unpacking the RPM File to the Target Server

4.0.1 From the Web

4.0.2 From the Microcode CD-ROM

5.0 Microcode Download Procedure for Optical Device

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1.0 Microcode Change History:

            IBM     DROM0020311

8R23

Fix for SCSI BUS errors on 7038-6M2 systems

8R22

Original microcode Fix for SCSI BUS errors on 7038-6M2 systems


Converter Card

174i

Improved problem handling between the drive and converter card

171i

Fixed possible hang condition during Diagnostic testing on 7040-61D on systems p670 & p690

160i

Added new features to improve microcode update process

150i

Fixed microcode update hang during optical drive flashing: on all systems

140i

Fixed SE / LVD issue

117i

GA Level


 

2.0 AIX Requirements:
  
For support:  AIX 5.1 ML_06 and above
AIX 5.2 ML_03 and above
AIX 5.3 ML_00 and above

3.0 Determine the Current Microcode Levels:

Before you install the microcode, it is important to determine the microcode level of the Drive installed on the target system. Use the following instructions to read the Microcode Level.

1)  List the optical drives attached to the target systems by typing:
    lsdev -Cc cdrom

2) To check the current microcode level for the optical drive, enter the following command
     lscfg -vl cdX
 Where X is the number associated with the optical drive listed as available in step 1.


Results of command

# lscfg -vl cd1

  cd1              P2/Z1-A3  16 Bit LVD SCSI DVD-ROM Drive (4700 MB)

        Manufacturer................IBM

        Machine Type and Model......DROM0020311

        ROS Level and ID............8R23

        Device Specific.(Z0)........058002028F000030                    

                Part Number.................97P3696                             

                EC Level....................H64090                              

                FRU Number..................80P2293

#

3) To check the current microcode level of the SCSI converter card follow these directions:

            a) type in diag into the prompt

                        diag

            b) <enter> to continue to the next screen

            c) arrow down to the Task Selection is highlighted and press <enter>

            d) arrow down to the Display Microcode Level is highlighted and press <enter>

            e) find the appropriate optical drive, cdX, arrow down and highlight it.  Then select it, by pressing <enter> and then commit by press F7 key (commit function key can change, so read the bottom of the screen to make sure the commit button is still F7 key).

            f) select SCSI Convert Card and press <enter>, and below is the result

                        DISPLAY MICROCODE LEVEL

                                cd1    16 Bit LVD SCSI DVD-ROM Drive

                                The current microcode for the SCSI Converter Card

                                is ACA-SCSIDE16.174i.     

           

            This SCSI Convert Card has 174i microcode on it.

4.0 Downloading and Unpacking the RPM File to the Target Server

4.0.1 From the Web

The user should put the RPM file from the IBM website into the /tmp directory.

The RPM file for this microcode update is called ibm-scsi-dvdrom.drom0020311-8R23.174i.rpm

Once the file is in /tmp directory, then to unpack the file by executing following commands:
        rpm -ihv --ignoreos ibm-scsi-dvdrom.drom0020311-8R23.174i.rpm

The microcode files will be placed in the /etc/microcode/ directory.

4.0.2 From the Microcode CD-ROM

The RPM packaged microcode files should be located in the "/microcode/RPM"

If the user mounts the CD-ROM disc in the /mnt directory, then execute the following commands to unpack the microcode.
            cd /mnt/microcode/RPM

rpm -ihv --ignoreos ibm-scsi-dvdrom.drom0020311-8R23.174i.rpm

The microcode files will be copied to "/etc/microcode". 

Notes:
 - "/etc/microcode" is a symbolic link to "/usr/lib/microcode".
 - If permission does not allow the copy to the above stated directory
                  or file then the user will be prompted for a new location.
 

5.0 Microcode Download Procedure for Optical Device

NOTE: Please save current and older versions of the microcode update files in case you need to restore your system.
Please verify the file size and checksum of the raw microcode files in /etc/microcode/.

To check file size, type these next two commands into the AIX prompt:
ls -l ACA-SCSIDE16.174i                 File size = 16384
ls -l IBM-DROM002031.8R23        
File size = 156116

To determine the checksum type these commands into the AIX prompt:
sum ACA-SCSIDE16.174i                 check sum = 9516
sum IBM-DROM002031.8R23        check sum = 11038
 

Procedure:
1. Stop all applications and un-mount any file system that is installed on the drive.  Media does not have to be removed for the update process to take place.

2. Enter Diagnostics by typing the diag command into the prompt
            diag
3. The first screen tells you about Diagnostics.  After reading this screen press <enter> to continue

4. Arrow down to the Task Selection is highlighted and press <enter>

5. Arrow down to the Download Microcode is highlighted and press <enter>
           
6. Select all of the 16 Bit LVD SCSI DVD-ROM Drive that needs to be updated from the list of devices by pressing <enter>. To commit to the next step, Press "F7".

7. A dialogue box will be display a choice of updating DVD-ROM Drive or SCSI Converter Card.  Pick the down level, which should have been determined back in process 3.0 Determining Current Microcode Levels and press <enter> to continue.  If both are down level, choose one and come back after the process is complete and flash the other device.

8. Select "/etc/microcode" and press <enter>.

9. A dialogue box may display on screen if the /etc/microcode does not contain the current microcode found on the device. This is just a warning screen and if the microcode files have the same sum and file size as what is described above, then the this process should work.  Also as a last resort, the drive will reject any corrupt microcode trying to be loaded on it.  Press <enter> to continue.

10. An "M" will be displayed next to the latest level of microcode in the /etc/microcode directory.  Select that level and press <enter>.

11. The following message will appear on the screen when download is completed: "Microcode download complete successfully.  The current microcode level for the device cd# is .....  Please run diagnostics on the drive to ensure that it is functioning properly."

12. Sometimes it’s necessary to update both the SCSI Converter Card and the Optical Drive, so don’t forget to update both those device if they were down level.

13. Verify the microcode levels by repeating process 3.0 Determining Current Microcode Levels.

14. Run diagnostics to make sure the devices are in working order.