Pre-Post migration check-out -preparation in aix?
Pre Migration check out
# lscfg |grep Architecture
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System platform check - Only CHRP systems are supported in AIX 5.2 and above
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# prtconf |grep 'Processor Type'
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only 64-bit common hardware reference platform (CHRP) machines supported
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# ls -al /dev/rootvg; ls -al /dev/hd5
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verity the major number for /dev/rootvg and /dev/hd5 is 10.
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# lslv -m hd5
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Find out which disk contains your hd5 logical volume.
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# bosboot -ad /dev/hdisk0; bosboot —ad /dev/ipldevice
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verify boot image can be successfully recreated using the hdisk and by using /dev/ipldevice.
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# lsvg -i rootvg|grep -i hd5; lsvg rootvg|grep SIZE
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Currently the recommended allocated space to have for hd5 is 32mb
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# lspv -M hdisk0|grep -i hd5
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the hd5 lv covers the first or first 3 partitions on the disk based on the size. (Min is 32MB)
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# bootinfo -r
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To check the system has minimum memory (AIX 5.3 - 256MB, AIX 6.1/7.1 - 512MB)
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# lppchk -vm3
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lppchk command should be run to check system consistency
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# instfix -i|egrep -i 'ml|sp'
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To check currently Installed TL / SP filesets are consistent.
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# lscfg -vl hdisk*|grep -i hdisk*
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To get the disk location.
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# emgr -l; emgr -r -L <efix>
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Need to remove any efix applied on the systems.
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# lspv|egrep -i 'alt|old|reserve|none'
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To check any spare disks/reserved disk present on the system. you can see alt/old rootvg
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# /usr/lpp/bos/pre_migration
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Execute pre_migration script. output saved in /home/pre_migration.<date> directory.
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"Note"
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Take all the necessary checks/output like df -gt; netstat -nr; ifconfig -a;
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Post Migration checks out
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#
/usrlpp/bos/post_migration
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To check that your migration was
succsiful (all output will be saved in /home/post_migration.<date>
directory.)
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#
lppchk -vm3
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lppchk command should be run to check
system consistency (no output is best)
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#
oslevel -s
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To check the expected target level
achieved.
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#
instfix -i|egrep -i 'ml|sp'
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To check currently Installed TL / SP
filesets are consistent.
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Note
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Filesets that did not migrate can now
be migrated using a software source containing the software
and running a
smitty update_all
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