`Size`	`Disk Drive Model`	`FRU#`	`P/N (VPD)`	`Microcode File Name`	`Check Sum`
`800 GB`	MZQLB800HAJR	01LU763	01LU760	A1800101.4d4e3341	`03386`
`1600 GB`	MZQLB1T6HALS	01LU764	01LU761
`3200 GB`	MZQLB3T2HALS	01LU765	01LU762

1.2 Microcode Change History

Release date	Code level	Severity/ Impact	Change Description
May 2021	MN3A	Function/ ATT	-GPIO Detection: Change the detection method from edge detection to level detection - NAND Recovery: Optimize the setting to applicate NAND recovery code on Die1 as well -PLP recovery: Write request for PLP dump is allocated into SRAM so dump speed is improved - Optimize operation ratio between GC and host write in GC level “Low” → Decrease GC operation ratio in GC level “Low”
July 2020	MN39	Function/ ATT	Fixed the following: Gen3-Gen1 speed down transition Performance Enhancement Erase count correction TCG Transaction Exception Handling corner case fix FW Activation Policy Change on FW image Crash ARM exception by TRIM during TCG operation Device did not appear as NVMe/PCIe device after hot-insertion (Hot-plug) Other fixes and enhancements (Network Roll)
Feb 2019	MN38	Function/ ATT	Command timeout (8sec) caused by a racing condition between write and read when specific bank receives intensive read commands
October 2018	MN37	Function/ ATT	- VPD Change to show correct FW Level (in lscfg) after code update - Fixed Namespace Creation error
August 2018	MN36	New/ New	Initial Release

===============================================================

2. AIX and VIOS(PowerVM Virtual I/O Server) Operating System

Note: For VIOS systems, microcode of shared physical I/O resources can only be updated from VIOS partition.

To update disk drive microcode, from VIOS partition, enter the following command:

oem_setup_env

Then follow the instruction in section 2.3 to transfer/extract the microcode file, and section 2.4.1 to update the disk drive code.

2.1 Installation Time

Approximately 20 minutes if using Diagnostics CD; Approximately 5 minutes/drive using AIX concurrent diagnostics.

2.2 Determine Drive Model, FRU&PN and Current Microcode Level
To see the drive type and current microcode level, Execute the following command:
lscfg –vl nvme*

Vital Product Data (VPD)

# lscfg -vl nvme0

nvme0 U78D4.ND1.CSS10FA-P2-C1 PCIe3 x4 NVMe Flash Adapter

800GB NVMe Gen3 U.2 Slim SSD :

Part Number.................01CM501

EC Level....................P02092

FRU Number..................01LU763

Product Specific.(AN).......01LU760

Feature Code/Marketing ID...EC5J

Customer Card ID Number.....59B4

Serial Number...............84YAB0AF

Product Specific.(Z0).......10140637

Product Specific.(Z1).......2.4

Product Specific.(Z2).......800

Product Specific.(Z3).......3.50

Product Specific.(Z4).......0

Product Specific.(Z5).......0

Product Specific.(Z6).......A1800101

Product Specific.(Z7).......0YA

Product Specific.(Z8).......2637

Product Specific.(Z9).......08

Product Specific.(ZA).......5A

Product Specific.(ZB).......08

Manufacture ID..............34NY0K100406

Product Specific.(RV)........

ROM Level.(alterable).......REV.MN3A ß-- Code Level MN3A

Hardware Location Code......U78D4.ND1.CSS10FA-P2-C1

You can also use lsmcode to find the microcode level:

lsmcode –rd nvme0

A1800101.4d4e3341

Note that lsmcode output FW level is displayed as ASCII/Hex

4d = M

4e = N

33 = 3

41 = A

===============================================================

2.3 Transferring and Unpacking the Microcode Update Package

2.3.1 Internet AIX self extracting file (.bin)

a) Make a directory on an AIX system to receive the AIX format file.
Enter: mkdir /tmp/fwupdate
b) Transfer the AIX format file to /tmp/fwupdate directory (using "Save as ...").
You'll see the filename is PM985.bin
c) Unpack the file by executing the instructions below.
Enter the commands:
cd /tmp/fwupdate
chmod +x PM985.bin
./PM985.bin
[Don't overlook the periods (.) in the above command.]

The directory pm985 with microcode files listed in section 1.1 will be added to /tmp/fwupdate.
d-Enter the following command to copy the microcode files to " /etc/microcode " directory :
cp /tmp/fwupdate/ PM985/* /etc/microcode

2.3.2 Internet RPM package

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 /tmp/microcode

b) Transfer the RPM format file to the /tmp/microcode directory.
You'll see the filename is PM985-MN3A-AIX.rpm

c) Unpack the file by executing the instructions below:
Enter the commands:
rpm -ihv --ignoreos --force PM985-MN3A-AIX.rpm ;(please note, there are two dashes)

The file size and checksum will be verified.

The microcode files will be added to /etc/microcode/
d) If you are using stand alone AIX diag (bootable USB flash or CD/DVD) to update drive’s microcode, transfer microcode files to a USB drive and place it in “/etc/microcode” directory.
Please refer to this page for USB flash drive usage
https://www.ibm.com/support/pages/using-and-taking-advantage-usb-devices-and-aix

========================================================

2.4 Microcode Download Procedure

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? YES
Is system reboot needed to activate the microcode: Yes if stand alone diagnostics CD 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 concurrent diagnostics is used.

2.4.1 Concurrent Download

1. From AIX prompt type diag, then select the "Task Selection" from diagnostics menu.
2. Select "Microcode Download" from "Task Selection" menu.
3. Select resource that microcode will be applied to (nvmek?) and press ENTER, then press "F7" to commit..
4- A small screen displays the message " *** NOTICE*** The microcode installation occurs while the attached drives are available for use..... "
    Press enter to continue
5. Select the source for microcode, use arrow key to go up/down, Enter to continue.
                      /etc/microcode
                      usb mass storage

- Use /etc/microcode if microcode file is in the system
- Use “usb mass storage” if using usb flash drive

6- Display shows a list of microcodes available for the selected nvme(s), highlight option "M 4d4e3341", the latest microcode for the drive and press ENTER.
A message may warn you that current level of microcode is not available on the media, press ENTER to continue.

7. You will receive a msg. "Current Microcode is...." and "Download has completed successfully"
(this will take a several minutes)
8. Return to the Tasks Selection menu and repeat this procedure for each nvme (in the same partition) that requires this microcode.
9. Exit diagnostic

2.4.2 Standalone (Service Mode) Download

This procedure is used for all nvme’s including rootvg or paging space drives
1. Properly shutdown the system.
2. Boot up the system in standalone diagnostics mode with the AIX diag CD/DVD or USB Thumb drive
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 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:
    file system
      /etc/microcode
      usb mass storage    (ISO 9660 file system format)

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

======================================================

3. Linux Operating System

Note: The following procedure is for Red Hat Linux, please use microcode file package PM985-MN3A-LINUX.tgz for Ubuntu

tar -C-xzvf PM985-MN3A-LINUX.tgz

Red Hat Enterprise Linux for IBM Power LE

3.1 Determine the Current Microcode Level for Linux:

These steps assume you are logged in with root permissions.

Prerequisites for Red Hat Linux:

Use the ibm-power-repo to configure the repositories and then use yum to download the nvme-cli package.

http://www14.software.ibm.com/support/customercare/sas/f/lopdiags/home.html

1. Download the IBM Linux on Power Tools Repository configuration RPM file available at:

http://www14.software.ibm.com/webapp/set2/sas/f/lopdiags/yum.html

2. Copy the file to the target system and install the RPM

# rpm -ivh ibm-power-repo-latest.noarch.rpm

3. To add the Tools Repository to the package management configuration, run the following command as root user (or with root privilege) and accept the Licensing agreement.

# /opt/ibm/lop/configure

Instructions for installing nvme-cli tool using Red Hat Enterprise Linux

To list the currently enabled repositories, enter:

# yum repolist enabled

Install the nvme-cli package, enter:

# yum install nvme-cli

After nvme-cli is installed on the system, to check the current microcode level for the adapter enter the following command:

# nvme list

Note: "nvme list" command uses libudev-devel, if it doesn't work, may need to install “libudev-devel"

1) Type "nvme list"
2) The column “FW Rev” will list the firmware version. For example:

Node SN Model Namespace Usage Format FW Rev

---------------- ----------------------- ----------------------------------------- ------------ ----------------------------- ---------------- ------ -------

/dev/nvme1n1 S434NY0K400206 800GB NVMe Gen3 U.2 Slim SSD 1 800.17 GB / 800.17 GB 4 KiB + 0 B REV.MN3A

If the Firmware Version is below than MN3A9 then you should update the microcode.

3.2 Downloading and Unpacking the Firmware Update Package

1. Download feature code EC5J/EC5K/EC5L package from FixCentral, and transfer the file, to a temporary directory on the target server such as /tmp.

2. Unpack the package

rpm -ivh --ignoreos PM985-MN3A-LINUX.rpm

3. The microcode package extracts the firmware file to the /lib/firmware/ directory

3.3 Verifying microcode before download and notes

NOTE: Microcode download must be performed separately for each nvme under distinct Logical Partitions (LPAR's).
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 matches the below.
Filesize: 1376256
Checksum: 03386
For Linux: "ls -l /lib/firmware/ A1800101.4d4e3341" to verify Filesize.
"sum /lib/firmware/A1800101.4d4e3341" to verify Checksum.

For systems that have LPAR installed, the microcode file must be placed on all partitions that have(owns) an NVMe device in order to update the code.
Follow this procedure for each partition:

1. Log into the target partition.

2. Type: "cd /lib/firmware"

3. SFTP to the partition that has the media bay assigned. (ie. "sftp partition1.ibm.com")

4. Type: "cd /lib/firmware"

5. Type: "get A1800101.4d4e3341"

6. Type: "quit"

3.4 Microcode Download Procedure-NVMe Adapters for Linux

1) Type "nvme list" and press "Enter". This will list all of the NVMe adapters in your partition. In the Node column, the NVMe adapters will be listed as /dev/nvme#n1 where # is the number of the device.
2) For each NVMe adapter to be update, issue the following commands:

a) Type “nvme fw-log /dev/nvme<#>” and press “Enter”, where <#> is the number of the device.

For example, for device /dev/nvme0n1, type

“nvme fw-log /dev/nvme0” and press “Enter”. This will list the firmware level currently loaded on the adapter as well as the number of slots in the adapter.
These 3 slots are listed as frs1, frs3.

b) Download and activate firmware to the adapter by typing:

Note that there are 4 FW “slots” in this nvme, each slot must be updated AND activated, example below is for nvme0

nvme fw-download /dev/nvme0 --fw=/lib/firmware/ A1800101.4d4e3341

nvme fw-activate /dev/nvme0 -a 0 –s 1

Repeat for all slots (-s 2; -s 3)

nvme fw-activate /dev/nvme0 -a 3 –s 3 ß this step may be omitted if the nvme device does not support the function

nvme reset /dev/nvme0

4. Revisions

May 19, 2021: Changed section 2.4.1 to indicate no power cycle or reboot is required