IBM AIX Question:
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How to expand rootvg size from storage end when there is no free pp available?

Answer:

We can get a disk from Storage team with the bigger size then the current available rootvg disk in the OS. Then mirror the lv/pv. Once the data is mirrored then we can remove the older rootvg disk.

NOTE: we can't user chvg -g in the rootvg disks for the older OS versions. For the new OS version we need to check it out in "man" page whether the option is available or not.

OR

For extending rootvg better to use alt_disk_install to bigger disk.

For eg:
hdisk0 is of 50GB.
Storage team allocated 80GB new disk to the server as per our requirement.
Then mirror the rootvg
Reduce the the older disk and then remove it from the rootvg.

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