Table of Contents

1.0 Disk Drives Affected

2.0 Microcode Change History

3.0.0 General Information
3.0.1 Installation Time

4.0 Determine Drive Model, FRU&PN And Current Microcode level

5.0.0 Downloading and Unpacking the Firmware Update Package From WEB
5.0.1 Downloading the RPM Format File to the Target Server
5.0.2 Downloading File from the Microcode CD-ROM

6.0.0 Microcode Download Procedure-SCSI Drives Attached to SCSI adapter - Non SP systems
6.0.1 Microcode Download Procedure-SCSI Drives Attached to RAID Adapter
6.0.2 Microcode Download Procedure-SP systems
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1.0 Disk Drives Affected:

This microcode is for use in the following SCSI hard disk drive:

Size            Model             FRU ASM        Assembly
                                  P/N            P/N
--------------  ------------      -------        --------
9.1GB (80 Pin)  DDYS-T09170M      07K7410        07K7408
18.2GB(80 Pin)  DDYS-T18350M      07K7406        07K7404
36.4GB(80 Pin)  DDYS-T36950M      07K7402        07K7400
 

2.0 Microcode Change History

Release date	Change Description
8/2002	Code level SB0A, Reliability enhancement to improve the idle time sweep algorithm and optimize track following.  Enhancement were also made to the drive's Predictive Failure Analysis (PFA) algorithm where the the warning from the drive will be tripped earlier than before when it see hard read and write errors.
9/2001	Code Level S9RA,  1- Reset Monitor Process: Reset handling were developed to further reduce the potential of a drive hanging the SCSI bus.A new timer process that monitors SCSI reset was added.  2- Apply same write ERP(Error Recovery Procedure) steps for reserved area as user data area.
5/2001	Code evel S9HA:  1- In microcode level S96F, Drive idle time functions--which include surface safe sweep functions--are only invoked after 10 continues minutes of drive idle time. System functions in certain configurations/RAID environments can prevent the drives from going into safe sweep function  due too frequent because read ops performed as part of RAID parity checking, etc happens every 10 to 20-seconds . In microcode S9HA, drive idle time function as described above is invoked after accumulating 120 of 5second idle periods, instead of the default of 10 minutes continuous idle time.
10/2000	Code level S96F: Fixes and enhancement to improve disk drive reliability and logic changes to prevent conditions that may result in a possible error that could overwrite sectors of data.
8/2000	Code level S93H-Original Release

3.0.0 General information

NOTE: Please verify the following values for this microcode file: 2104_ddys-SB0A.rpm
        DDYS-T0.524D3031.53423041    Size: 294909    Checksum: 47008
        DDYS-T1.524D3031.53423041    Size: 294909    Checksum: 47008
        DDYS-T3.524D3031.53423041    Size: 294909    Checksum: 47008
 

3.0.1 Installation Time: Approximately 20 minutes if drive is part of rootvg(using Diagnostics CD); Approximately 5 minutes/drive if drive is not part of rootvg(using concurrent diagnostics).
 

4.0 Determine the Drive Model, FRU&PN and Current Microcode Level:
a- SCSI Drives attached to SCSI Controllers(Not RAID)
To see the drive type and current microcode level, Execute the following command:
lscfg -vl hdisk* |pg

Example of the info on a  9.1GB SCSI hard disk:
lscfg -vl hdisk16

  DEVICE            LOCATION          DESCRIPTION

  hdisk16           30-69-00-9,0      16 Bit LVD SCSI Disk            Drive (36400 MB)

        Manufacturer.........................IBM
        Machine Type and Model......DDYS-T36950M
        FRU Number........................07K7402
        ROS Level and ID................53423041
        Serial Number.......................TFL43981
        EC Level...............................F80151
        Part Number.........................07N5834
        Device Specific.(Z0).............000003029F00013A
        Device Specific.(Z1).............07N4923
        Device Specific.(Z2).............0933
        Device Specific.(Z3).............00076
        Device Specific.(Z4).............0001
        Device Specific.(Z5).............22
        Device Specific.(Z6).............F80151

If the data returned in the "Part Number" field matches the one listed above AND the "ROS Level and ID...." field of that data is below 53423041, this microcode applies.  If this level is already installed then the "ROS Level and ID...." will show:  "53423041"

Note: "53423041" is hex coded ASCII characters "SB0A"

 
For SP systems with multiple nodes, you can use the following command to query all of the nodes at one time. Use of this command will also limit the amount
of data returned, making it easier to audit.  It returns only the pertinent information: node name, hdisk number, ROS Level and ID and part number.

dsh -a lscfg -v |egrep 'hdisk|ROS|Part'

pesp_n1:   hdisk0            10-60-00-0,0      16 Bit LVD SCSI Disk Drive (9100 MB)
pesp_n1:         ROS Level and ID............53423041
pesp_n1:         Part Number.................07K7408
pesp_n5:   hdisk0            10-60-00-0,0      16 Bit LVD SCSI Disk Drive (9100 MB)
pesp_n5:         ROS Level and ID............53423041
pesp_n5:         Part Number.................07K7408
pesp_n5:   hdisk1            10-60-00-8,0      16 Bit LVD SCSI Disk Drive (9100 MB)
pesp_n5:         ROS Level and ID............53423041
pesp_n5:         Part Number.................07K7408

At AIX command line, type:
Diag
Select "Task Selection" from diagnostics menu.
Select "PCI RAID Physical Disk Identify"
Select SCSI RAID Adapter (press enter, then F7 to Commit)
This will display the Vital Product Data for Physical Diak drives attached to the RAID adapter.
If "Product Type" is DDYS , and ROM/RAM Fields are below SB0A, then microcode of drive(s) need to be updated

The directory ddys with these files will be added to /etc/microcode.

DDYS-T0.524D3031.53423041
DDYS-T1.524D3031.53423041
DDYS-T3.524D3031.53423041
ddysSB0A.txt

Note: ddysS80A.txt   is a read me file(same as this file), it can be saved or printed for future use.

d-Enter the following command to copy the microcode files to " /etc/microcode " directory :
   cp /etc/microcode/ddys/DDYS*  /etc/microcode

e- Copy microcode file onto floppy diskette
   Note: Don't overlook the complete path of microcode files, AIX Diag microcode download will not work if files are not copied with complete path onto the diskette.  Enter the following command to copy microcode file(s) onto a floppy diskette
ls /etc/microcode/ microcodefilename  | backup -ivf /dev/rfd0
where microcodefilename is  microcode file that is needed, for example:
ls /etc/microcode/ DDYS-T0.524D3031.53423041  | backup -ivf /dev/rfd0

The following microcode files are included in the diskettes, use the list below to find the right file for you disk drive.

Size             Model             FRU # or   Assembly
                                   FRU ASM#   P/N         Microcode File Name
--------------   ------------      -------    -------     -------------------------
9.1GB (80 Pin)   DDYS-T09170M      07K7410    07K7408     DDYS-T0.524D3031.53423041
18.2GB(80 Pin)   DDYS-T18350M      07K7406    07K7404     DDYS-T1.524D3031.53423041
36.4GB(80 Pin)   DDYS-T36950M      00K7402    07K7400     DDYS-T3.524D3031.53423041
 

5.0.1 Downloading the RPM Format File to the Target Server
Use this method to download to an AIX system:

Note: The instructions that follow are specific AIX commands. AIX commands are CASE (lower and upper) SENSITIVE, and must be entered exactly as shown, including filenames.

a) Make a directory on an AIX system to receive the RPM format file.
    Enter:      mkdir /etc/microcode

b) Transfer the RPM format file to the /etc/microcode directory (using "Save as ...").
    You'll see the filename is 2104_ddys-SB0A.rpm

c) Unpack the file by executing the instructions below:
    Enter the commands:
        rpm -ihv --ignoreos 2104_ddys-SB0A.rpm

The file size and checksum will be verified.

The microcode files will be added to /etc/microcode/
 

5.0.2 Downloading File from the Microcode CD-ROM

Copy microcode updates from the CD-ROM to standard locations on your local disk:

1. RPM packaged microcode files will be copied to "/tmp/microcode/RPM"
2. Microcode files will be copied to  "/usr/lib/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.
 

6.0.0 Microcode Download Procedure-SCSI Drives Attached to SCSI adapter

Warning: Do not power off the system or the drive during microcode download as this may permanently damage the disk drive

NOTE: Please save current and older versions of the microcode update files in case you need to restore your system.

Caution: The microcode download process is nondestructive to the hard disks; however, as a precaution, ensure that a backup operation has been performed on the affected systems PRIOR to the microcode installation.

Can microcode be installed Concurrently?
AIX level 5.1 and above supports concurrent microcode download on all drives, including drives that are part of rootvg.
AIX level 4.33 and below does not support concurrent microcode download if drive is part of rootvg, microcode download can ONLY be performed in service mode(stand alone) using diagnostics CD. If disk is not part of rootvg, microcode download can be performed cuncurrently as long as drive is not in use.

Is system reboot needed to activate the microcode: Yes if stand alone diagnostics is used, NO if concurrent diagnostics is used.

Installation Time: Approximately 20 minutes/drive if stand alone diagnostics is used(using Diagnostics CD); Approximately 5 minutes/drive if consurrent diagnostics is used.

Procedure(AIX level 4.33 and below):
a- Online(Concurrent) Diagnostics(for drives that are not part of rootvg or paging space):
1. This step is optional.  Microcode download can be performed either from Diskette or from Disk.To copy files from the diskette to disk, place the diskette containing microcode files into diskette drive A, at AIX Prompt type   restore
2- At AIX prompt, type   diag
3. Select the "Task Selection" from diagnostics menu.
4. Select "Microcode Download" from "Task Selection" menu.
5. Select resource that microcode will be applied to(hdisk?) and press ENTER.
6. Press "F7" to commit.
      (The current microcode level of the resource you selected earlier will be displayed at the top of the screen)
7. Make the following selections on the next screen:
    Select Input Device --------------------------------------- [ diskette]  <---------- Disk can be used if  "restore" command is used in step 1
    Microcode level to download ----------------------------- [ latest]
    Download latest level even if ------------------------------ [ yes]
    current is missing
NOTE: A prompt will ask you to insert the microcode diskette into the floppy drive(if Diskette is selected above).  Insert the diskette which accompanies these instructions. If this level is already installed in the drive you've selected a message will let you know. A message also may come up to let you know that the Diskette(or Disk) does not have the previous level microcode file. This is true and is not required to complete the download.
PRESS "F7" to commit
8. You will receive a msg. "Current Microcode is...." and "Download has completed successfully"
       (this may take a few minutes)
9. Return to the Tasks Selection menu and repeat this procedure for each hard disk that requires this microcode.
10. Exit diagnostic.

b- Standalone Diagnostics (for all drives including rootvg or paging space drives):
1. Properly shutdown the system.
2. Boot up the system in standalone diagnostics mode with the CDROM diagnostics(Use diagnostics level 4.21 or above;  It is recommended to use the same level
    of  Diagnostic CD as the AIX ).
3. Select the "Task Selection" from diagnostics menu.
4. Select "Microcode Download" from "Task Selection" menu.
5. Select resource that microcode will be applied to(hdisk?) and PRESS ENTER.
6. Press "F7" to commit.
      (The current microcode level of the resource you selected earlier will be displayed at the top of the screen)
7. Make the following selections on the next screen:
    Select Input Device --------------------------------------- [ diskette]
    Microcode level to download ----------------------------- [ latest]
    Download latest level even if ------------------------------ [ yes]
    current is missing

NOTE: A prompt will ask you to insert the microcode diskette into the floppy drive.  Insert the diskette which accompanies these instructions. If this level is already installed in the drive you've selected a message will let you know. A message also may come up to let you know that the Diskette(or Disk) does not have the previous level microcode file. This is true and is not required to complete the download.
PRESS "F7" to commit
8. You will receive a msg. "Current Microcode is...." and "Download has completed successfully"
       (this may take a few minutes)
9. Return to the Tasks Selection menu and repeat this procedure for each hard disk that requires this microcode.
10. Exit diagnostic and reboot system in normal mode.

Procedure (AIX level 5.1 and above):
1. Type diag at the prompt.
2. Select the "Task Selection" from diagnostics menu.
3. Select "Microcode Download" from "Task Selection" menu.
4. Select resource that microcode will be applied to(hdisk?) and press ENTER, then press "F7" to commit..
5- A small screen displays the message " *** NOTICE***  The microcode installation occurs while the attached drives are avilable for use..... "
    Press enter to continue
6.  Select the source for microcode, use arrow key to go up/down, Enter to continue.
                      /etc/microcode
                      diskette

   - Use /etc/microcode if "restore" command is used to copy files from diskette onto the disk
   - Use diskette if using diskette as the source for download

NOTE: A prompt will ask you to insert the microcode diskette in diskette drive(if Diskette is selected above).  Insert the diskette and press ENTER

7- Display shows a list of microcodes avilable for the selected drive, highlight option "M  DDYSxxx...", the latest microcode for the drive listed below and press ENTER. A message may warn you that current level of microcode is not available on the media, press ENTER to continue.

8. You will receive a msg. "Current Microcode is...." and "Download has completed successfully"
       (this may take a few minutes)
9. Return to the Tasks Selection menu and repeat this procedure for each hard disk that requires this microcode.
10. Exit diagnostic(and reboot if needed).
 

6.0.1 Microcode Download Procedure-SCSI Drives Attached to RAID Adapter

NOTE: Please save current and older versions of the microcode update files in case you need to restore your system.

Procedure:
1. At AIX Command line type:
    diag
2. Select the "Task Selection" from diagnostics menu.
3. Select "Microcode Download" from "Task Selection" menu.
4. Select RAID controller from the list of resources, PRESS ENTER, then F7 to commit
5. Select "Physical Disks" and PRESS ENTER
6. A list of all Physical Disks will be displayed, select the disk that needs to be upgraded, PRESS ENTER and F7 to commit.
7. Select "Latest level"
8. Select "Disk" if files are copied to /etc/microcode directory. Select "Diskette" if microcode files are saved onto a diskette, PRESS ENTER
    (The current microcode level of the resource you selected earlier will be displayed at the top of the screen)

9.  You will receive a message "Download has completed successfully" and "Current Microcode is"   (this may take a few minutes).
10. Return to the Previous menu and repeat this procedure for each hard disk that requires this microcode.
11. Exit diagnostic and reboot system.
 

6.0.2 SCSI Disk Drive Microcode Download Procedure-SP systems
This procedure requires copying microcode files to the appropriate SPOT(s). Therefore, it is HIGHLY recommended that someone with an appropriate level of AIX experience and expertise should perform this task, preferably the System Administrator of person(s) designated as responsible for making software updates to the system.

Warning: Do not power off the system or the drive during microcode download as this may permanently damage the disk drive

NOTE: Please save current and older versions of the microcode update files in case you need to restore your system.

Caution: The microcode download process is nondestructive to the hard disks; however, as a precaution, ensure that a backup operation has been performed on the affected systems PRIOR to the microcode installation.

Can microcode be installed Concurrently?
 NO. If the disk is part of rootvg or used as a paging device, microcode download can ONLY be performed while node is "Network Booted" into "Diagnostic Standalone Mode".

Is system reboot needed to activate the microcode: Yes

Installation Time: Installation time will vary depending upon the system configuration

Procedure for SP System (Nodes):

Note: Make sure that node on which work is to be performed has been "fenced" from the switch.
1. Obtain proper microcode diskette from from your IBM Service Representative.
2. Copy microcode file from diskette onto CWS:
     restore -xvq
     (file will be copied into the "etc/microcode" directory)

3. Move microcode file from "etc/microcode" directory to the appropriate Spot(s) that are used by the customer for the node(s) to be updated.
    ie: /spdata/sys1/install/aix4??/spot/spot_aix4??/usr/lib/microcode                (??= level of AIX on your system)

4. To set the Node(s) to boot from network, from CWS, run command:
    spbootins -r diag [frame#] [node#] [node count]
    (example - - spbootins -r diag 1 13 1)

5. From Perspectives, perform a "Shutdown" for the node(s) to be updated.
6. From perspectives screen for node to be updated, select "Network Boot" and wait for TTY to open to DIAG MENU.
7. Choose "Task Selection".
8. Choose your terminal type.
9. Select "Download Microcode"
10. Select resource that microcode will be applied to(hdisk?) and PRESS ENTER.
11. Press "F7" to commit.
      (The current microcode level of the resource you selected earlier will be displayed at the top of the screen)
12.  In the "Select the input device" screen, make sure settings are as follows:

      Select Input Device --------------------------------------- [ disk]
      Microcode level to download ----------------------------- [ latest]
      Download latest level even if ------------------------------ [ yes]
      current is missing

PRESS "F7" to commit

13. You will receive a msg. "Current Microcode is" and "Download has completed successfully"
       (this may take a few minutes)

14. On CWS run the following command:
      spbootins -r disk [frame# [node#] [node count]

15. On CWS, After spbootins finishes, run the following command:
      splstdata -b (check output to see that node in question was set back to disk)

16. On "TTY" screen for node, Press F10 to get to "Shutdown Screen" and close TTY screen.
17. On perspectives screen of affected node, do a power off of the node and a power on of the node.
18. After node boots, telnet to the node, run the following command and check that correct microcode level has been updated.
          lscfg -vl hdisk# (ie hdisk0,hdisk1 etc).