Upgrade HBA firmware:
- Determine the FRU number and microcode level of the adapter installed in the target system: lsdev –Cgrep "fcs"
- Check the current micro code level on the adapter: lscfg –vl fcs0; lsmcode –d fcs0 Ex: CS3.91X4
- Download RPM packages for aix system
- Make a directory on an AIX system to receive the RPM format file
- Unpack the file by rpm –ivh –ignoreos
- Diag –d fcs1 –T
- Backout procedure: diag –d fcs1 –T "download –f –l previous"