Table of Contents
Improved DVD writing
Improved drive diagnostic ability
Original released f/w for the drive
Original released microcode for this converter card
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-RAM Drive (4700 MB)
Machine Type and Model......RMBO0020311
ROS Level and ID............BC1M
a) type in diag into the prompt
<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-RAM Drive
The current microcode for the SCSI Converter Card
This SCSI Convert Card has 377i microcode on it.
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-dvdram.rmbo0020311-BC1M.377i.rpm
Once the file is in /tmp directory, then to unpack the file by executing following commands:
rpm -ihv --ignoreos ibm-scsi-dvdram.rmbo0020311-BC1M.377i.rpm
The microcode files will be placed in the /etc/microcode/ directory.
The RPM packaged microcode files should be located in the
If the user mounts the CD-ROM disc in the /mnt directory, then execute the following commands to unpack the microcode.
The microcode files will be copied to "/etc/microcode".
- "/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.
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 ACR-SCSIDE16.377i File size = 16384
ls -l IBM-RMBO002031.BC1M File size = 696800
To determine the checksum type these commands into the AIX prompt:
sum ACR-SCSIDE16.377i check sum = 34335
sum IBM-RMBO002031.BC1M check sum = 24933
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
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
7. A dialogue box will be display a choice of updating
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
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.