Hello,
I have redhat and centos systems that I've only been able to grow the VG by adding more disks. I've been searching the web for a way to extend a volume group by growing the physical disk only and not having to add a second disk. Is it possible?
I can do this with AIX, by just inceasing the size of the underlying LUN, then execute the chvg command. The Volume group will detect the lun increase and that space will be available to the lv and fs without having to reboot.