Microcode Discovery Service in short MDS enables in conjunction with the invscout AIX tool to survey your system for the installed microcode levels on devices such as network adapters, HBA’s, HDD’s etc., and also the system (service procesor) microcode itself. The collected information from the invscout tool is exported to a file. This file can be uploaded to the MDS website which generates a simple report with an overview of the microcode levels of your devices and the current/latest microcode levels. Also for each device and his microcode level there is a coresponding readme file and a download link for the microcode.
In this post I will describe the microcode update procedure on a scsi adapter using the MDS and invscout.
1. The invscout tool makes use of a catalog file that contains information about the newest microcode levels for all supported devices. The newest version of the catalog file can be downloaded here:
The file sould reside in: /var/adm/invscout/microcode/catalog.mic
# invscout -r ****** Command ---- V18.104.22.168 ****** Logic Database V22.214.171.124 Initializing ... Identifying the system ... Working ... Getting system microcode level(s) ... Scanning for device microcode level(s) ... 75 devices detected; each dot (.) represents 10 devices processed: ....... Writing Microcode Survey upload file ... ================================================ Hostname . . . . . . : Command Version . . . : 126.96.36.199 Logic Database Version: 188.8.131.52 Survey Date and Time : Fri Feb 17 14:45:52 2012 OS Level . . . . . . : 184.108.40.206 uname -m Model ID . . : 4C ------------------ IDENTIFIED DEVICES ------------------ Device Installed Microcode ---------------- ---------------------------------------- sys0 SF240_338 (t/b) SF240_338 (p) sisscsia0 53495310.0510006d ent4 14108902.DV0210 ent5 14108902.DV0210 cd0 IBM-DROM00205L.P533 hdisk0 HUS1030.50505230.52505152 hdisk1 HUS1030.50505230.52505152 ================================================ Microcode Survey complete The output files can be found at: Upload file: /var/adm/invscout/hostname.mup Report file: /var/adm/invscout/invs.mrp Report file: /var/adm/invscout/invs.mrrup To transfer the invscout 'Upload file' for microcode comparison, see your service provider's web page.
In order to get the microcode report it is necessary to upload the “Upload” file to this site:
Now, in my case I downloaded the microcode for my scsi controler to the /tmp/micro directory.
Extract the file:
#rpm -ihv --ignoreos --force pci.1069B166.10-0710000b-1.aix5.1.noarch.rpm
The extracterd file appears in /etc/microcode/
Again verify the current microcode level on the controler:
# lscfg -vps -l sisscsia0 sisscsia0 U787F.001.DPM28WG-P1 PCI-X Dual Channel Ultra320 SCSI Adapter: Part Number.................00P0000 FRU Number..................00P0000 Serial Number...............YL3000000001 Manufacture ID..............0000 EC Level....................0 ROM Level.(alterable).......0510006d Product Specific.(Z0).......573E Hardware Location Code......U787F.001.DPM28WG-P1
Start the microcode update
# diag -d sisscsia0 -T download
Select the install dir.
=================================================== INSTALL MICROCODE 802114 sisscsia0 PCI-X Dual Channel Ultra320 SCSI Adapter Select the source of the microcode image. Make selection, use Enter to continue. file system /etc/microcode optical media (ISO 9660 file system format) cd0 =================================================== INSTALL MICROCODE 802116 sisscsia0 PCI-X Dual Channel Ultra320 SCSI Adapter The current microcode level for sisscsia0 is 0510006d. Available levels to install are listed below. Select the microcode level to be installed. Use Help for explanations of "M", "L", "C" and "P" . Make selection, use Enter to continue. M 0710000b ====================================================== sisscsia0 PCI-X Dual Channel Ultra320 SCSI Adapter Microcode installation is in progress. Please stand by. sisscsia0 PCI-X Dual Channel Ultra320 SCSI Adapter Installation of the microcode has completed successfully. The current microcode level for sisscsia0 is 0710000b. Please run diagnostics on the adapter to ensure that it is functioning properly. Use Enter to continue.
Verify the microcode level after the update
#lsmcode -cd sisscsia0 The current microcode level for sisscsia0 is 0710000b
If a fallback should be nacessary you can return to the previous level, but you have to have the previous level in /etc/microcode
# diag -d sisscsia0 -T "download -f -l previous"
That’s it for this part