How to update microcode rmt0

How to update microcode rmt0

- No reboot is required.
- Read the instruction.
- Confirm the machine type and AIX level.
- Confirm current microcode (lscfg -vl rmt0, Z1)

- download the rpm file from IBM Fix Central.
  hardware ; P-series ;  firmware ; tape160
- ftp to target server /tmp directory.
- rpm -ihv --ignoreos TapeDAT160-WS31-01.rpm
- Install in diag.
  task ; microcode task ; download microcode.
- Choose rmt0 ; /etc/microcode ; Enter

- Confirm updated microcode. (lscfg -vl rmt0, Z1)

# Do the same for sissas0 device.

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