My rootvg is set to JFS and I want to move to JFS2. How can I do this?
Create a mksysb and then restore rootvg with JFS2. The only requirement to use JFS2 on rootvg is that the machine be running the 64-bit kernel.
My opinion is that you need to setup kernel to 64 bits instead of 32bits, because JFS2 (enhanced journaled file system) is a file system, introduced in AIX 5L for POWER Version 5.1, that provides the capability to store much larger files than the existing Journaled File System (JFS). Customers can choose to implement either JFS, which is the recommended file system for 32-bit environments, or JFS2, which offers 64-bit functionality.
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