Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I've been fiddling around with AIX 5.3.7 for hours today, and I was able to build a VG and LV, but I'm having difficulty using all the space in the LUN I carved out (500GB). I'm not sure if i'm running the right commands.

I have the LUN mapped from the SAN to the AIX box as hdisk16

I have the PV activated:

chdev -l hdisk16 -a pv=yes

I have the VG created:

mkvg -y logBUVG01 -s64 hdisk16

I have an LV created:

mklv -c1 -t jfs2 -y fslv01 logBUVG01 1

I go to format it:

crfs -v jfs2 -A yes -g logBUVG01 -m /fslv01 -a size=500G

But it fails saying I don't have enough free partitions. I don't understand how AIX determines space from the number of logical partitions or PP size, etc. If someone could clear this up for me, it would be great. How do I build my volume group/logical volume to utilize all the space I've carved out of my LUN?

share|improve this question
up vote 0 down vote accepted

Apparently, I couldn't use `-a size=500G.

Changing my command to use -a size=500000M worked:

crfs -v jfs2 -A yes -g logBUVG01 -m /fslv01 -a size=500000M
share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.