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AIX Convert JFS to JFS2

Posted on 2008-06-11
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Last Modified: 2013-11-17
I'm running AIX 5.2.


How to convert JFS to JFS2 for

1. rootvg
2. uservg

Can provide the steps and command involve.

Thank you.

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Question by:nakbijak895
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by:Michael Worsham
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by:nakbijak895
ID: 21762111
ok now i understand to change for uservolume group ..

but how the rootvg? as far i i know i can not destroy the filesystem in rootvg just like that.
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sjm_ee earned 200 total points
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You cannot dynamically convert a JFS filesystem to a JFS2 filesystem. Therefore the easiest way to perform the change is to backup the system using "mysysb" and "savevg uservg". I strongly advise testing this on a development system before trying it on a live system.

This procedure is not documented on official websites. Before running each of these, you should run the "mkszfile" and "mkvgdata uservg" commands and edit the files "/image.data" and "/tmp/vgdata/uservg/*" to reflect the change from JFS to JFS2. There is some more detail at http://comp.mailarchive.ca/unix.aix/2003-12/0600.html.
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