13GB 1/4" Microcode information for the 7207-315
Users are encouraged to install the latest microcode level
themselves. The microcode and instructions are available for
users at the IBM external web site:
The 0345 level of microcode is a major microcode revision requiring an
level of microcode to be installed first(0253) then install the
current level of microcode(0345).
This two step process is necessary because of major changes to support the 16GB tape cartridges starting with microcode level 0345.
The 0345 level of microcode is the minimum level of microcode required for support of the 16GB tapes. Prior levels of microcode will not read or write the 16GB tapes.
The typical time to install this microcode is .6 hrs.
The microcode becomes active when installed and does not require a system reboot to become active.
Yes, but the tape drive must be available with no tape in the drive, and no other processing running to the tape drive.
A reboot is not needed as the microcode is active in the drive when the drive completes microcode download. But to have the Vital Product Data show the new level you must use the AIX rmdev and mkdev commands.
Do not power off the tape drive during microcode download as this may damage the tape drive microcode requiring the tape drive to be replaced.
Remove any tape cartridge from the drive prior to attempting the microcode download.
All pSeries and RS/6000 machines this product was announce on. In general if the tape drive configures and is available with the VPD showing the Machine Type and microcode level as described in this README the machine is one affected.
Table 1. Microcode History
|Tape Drive P/N||Tape Drive FRU P/N||Microcode Level||Load ID||What does this microcode change
|87G4847||87G4858||0145||A0B00E11||First Microcode level shipped.
|87G4847||87G4858||0147||A0B00E11||Fixes slow backup and restore.
|87G4847||87G4858||0253||A0B00E18||Changes Load ID.
|87G4847||87G4858||0345||A0B00E18||Support for 16GB media.
Changes cleaning time from 50 tape motion hours to 8 tape motion hours to reduce media read/write errors.
Note: In some cases you may already have the most current level of microcode already installed. The following instructions show you how to check the tape drive microcode level.
To display the level of microcode in the 13GB 1/4" tape drive issue the following AIX command:
lscfg -vl rmt0 <--- change the drive number to reflect
the actual rmt address of the 13GB
1/4" tape drive.
The output of the lscfg command will look like the following with the "Device Specific.(Z1)" showing the microcode level:
DEVICE LOCATION DESCRIPTION
rmt0 00-03-01-0,0 Differential SCSI 1/4-Inch Tape
Machine Type and Model......IBM-6100
Device Specific.(Z1)........0345 <-- This is the microcode level
currently in the drive.
There are 2 ways a user can get the microcode files. Each of these will put the microcode on the user's system but the user will have to move the files to appropriate directory for system use.
When the user downloads the microcode files from the IBM web site the packaged microcode files will be put into the /tmp directory.
AIX commands and file names are case sensitive.
If the users AIX permission does not allow the copy to the above stated directory or file then the user will be prompted for a new location.
To install the microcode you must decide which microcode download program to use, "genucode" or AIX 5.1 diagnostics(or higher). Then you must sequentially install the 0253 level of microcode and then the 0345 level of microcode.
If you are going to do the microcode install using "genucode" go to the section "Installing with Genucode".
AIX 5.1 diagnostics(or higher).
you must copy the files to the
/etc/microcode directory with new names as the AIX
diagnostics use a different naming convention and directory
then does "genucode".
AIX Diagnostics requires the microcode and the dsdata file to be in the
Do the following AIX commands:
cp /tmp/web_microcode/dsdata IBM-6100.A0B00E11.dsdata
cp /tmp/web_microcode/IBM-6100.0253.A0B00E11 IBM-6100.A0B00E11.0253
cp /tmp/web_microcode/IBM-6100.0345.A0B00E18 IBM-6100.A0B00E18.0345
Then use the AIX diagnostics to install the microcode.
Then follow the AIX Diagnostics instructions:
Select "Task Selection"
Select "Download Microcode"
Select the rmt for the tape drive and press F7 to commit
Select the level of microcode to download
You may see a message similar to: "Previously installed microcode not on the system". The AIX diagnostics will look for earlier versions of microcode on the device you chose for the install. When you see the message from the AIX diagnostics about download microcode without the previous level present reply to the prompt to continue with the install even though the previous level of microcode is not available on the system.
After completing the download of the microcode level "0253" then you must download the microcode level "0345". To download the "0345" level of microcode select the rmt for the tape drive and repeat the process only this time select the "0345" level of microcode to download.
Genucode requires the microcode and the dsdata file to be in the
Do the following AIX commands:
cp /tmp/web_microcode/dsdata dsdata
cp /tmp/web_microcode/IBM-6100.0253.A0B00E11 IBM-6100.0253.A0B00E11
cp /tmp/web_microcode/IBM-6100.0345.A0B00E18 IBM-6100.0345.A0B00E18
You now need to use the instructions in the "genucode" package(from CORE) to do the first microcode install using the 0253 microcode file
You now need to copy the 0345 dsdata file to the dsdata file genucode
will use. Issue the following AIX command on the system:
cp /tmp/web_microcode/dsdata.345 dsdata
You now need to use the instructions in the GENUCODE package to do the second microcode install using the 0345 microcode file
After installing the microcode issue the following AIX commands to remove the device from the AIX configuration then add it back.
Note: The AIX commands require Root authorization and are:
rmdev -l rmt0
mkdev -l rmt0
lscfg -vl rmt0