How to upgrade TL and SP in AIX?

 How to upgrade TL and SP in AIX?

1. Ground work:

oslevel -s                                 --> find out the current os level of the system.

instfix –i|grep –i ml                --> check currently installed ML levels are consistent

lppchk –vm3                           --> check currently installed filesets are consistent

df -g                                         --> check the system has the enough free space.

bootlist -m normal -o             --> check the blv has been created on the rootvg disk
emgr -l                                     --> check the installed ifixes/emergency fixes.
emgr -r -L <ifix label>           --> To removing the ifixes / emergency fixes.

Ensure the latest "mksysb" has been taken.

Download the TL/SP package from IBM fix central and put it to nim server

2. Create the alt_disk (Consider we have hdisk0 & hdisk1 on the rootvg)

sysdumpdev –s /dev/sysdumpnull    --> If secondary dump device resides on hdisk1.

rmlv dump_lv                                    --> Remove the dump lv

unmirrorvg rootvg hdisk1                --> unmirrror (Have to use the hdisk1 for alt_disk)

chpv –c hdisk1                                   --> clear the boot image on the hard disk1.

reducevg rootvg hdisk1                    --> remove the hdisk1 from the rootvg disk.

alt_disk_copy -d hdisk1                    --> Take the alt disk clone on hdisk1

lspv                                                     --> confirm the "altinst_rootvg"  created on hdisk1

3. Perform the TL upgrade

smitty commit                                     --> commit all the old applied filesets

installp -s                                            --> check if any os filesets in applied mode

mount <nim_server>:<package holding directory> /mnt  --> mount directory which hold the TL pkg. 

cd /mnt

smitty update_all                               -- > Do the preview first and commit next, once done follow below

oslevel -s                                            --> Check the new TL level.

lppchk -v                                            --> No output should displayed, only the prompt

bootlist -m normal hdisk0             --> Change the bootlist to hdisk0 - remember alt_dsk reside on hdisk1

shutdown -Fr                                      --> for fast reboot.

4. Validation

oslevel –s                                           --> check the new TL level

instfix –i|grep  ML                            --> confirm the new TL level are consistent.

lppchk –v                                           --> No output should displayed, only the prompt

5. Remove the alt_disk and re-mirror

alt_disk_install -X                            --> Remove the alt_disk

extendvg -f rootvg hdisk1                 --> extend the hdisk1 to the rootvg

mirrorvg rootvg hdisk1                    --> To mirror with the hdisk1

bosboot –ad /dev/hdisk1                   --> Create the boot image

bootlist –m normal  hdisk0 hdisk1  --> Set the boot sequence

bootlist –m normal –o                       --> check the boot sequence order

mklv –y <lvname> -t sysdump rootvg <num of LP’s> hdisk1  --> Create the dump lv on hdisk1 if you have removed during the alt disk clone

sysdumpdev –s /dev/<lv name>        --> Create the secondary dump device on hdisk1

sysdumpdev –l                                   --> confirm the dumplv