Originally posted by: apple08

dear aix gurus,
if we hv one mount point and would like to extend it, what is the best for optimum performance.
increase in san storage and issue chbvg -g or physical extend the disc by using extendvg vgxx hdisk33
hope to hear from you. thank you
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Originally posted by: unixgrl

Your question is not clear.
Are you trying to increase a filesystem in a disk group with available
space? Or, do you need to increase the filesystem size but don't have enough space?

If you need more space in your disk group, use extendvg.
If you have a JFS2 filesystem that needs to be increased in size (or decreased) you can use chfs. Use the man pages and infocenter.
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Originally posted by: cd3lgado

Hi

It depends. From the performance point of view i think it's better to add another disk to the Volume Group. From the admin point of view and using AIX capabilities it's better to increase the LUN size at SAN level and run the chvg command in order to update the size of the VG.

Hope this helps
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Originally posted by: SystemAdmin

chfs -a size=+1000M /<mount-point fs> if you have free space in VG

If you haven't free space in VG, you have to extend the VG with new disk.

extendvg -y <vg> <hdiskx>
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