I was running out of filesystem space on my AIX 7.1 box
The df output showed that things were pretty tight:
The volume group rootvg in my case had one physical volume(hdisk0). All the physical volumes in
volume group are divided into physical partitions(PPs) of the same size.
To check if there is any free space on the physical volume which has rootvg i did
454 = number of free physical partitions(PP).
The df output showed that things were pretty tight:
isvp17> df -m Filesystem MB blocks Free %Used Iused %Iused Mounted on /dev/hd4 512.00 330.59 36% 9762 12% / /dev/hd2 16896.00 14787.64 13% 43253 2% /usr /dev/hd9var 512.00 232.75 55% 5726 10% /var /dev/hd3 3584.00 3581.39 1% 40 1% /tmp /dev/hd1 256.00 120.70 53% 183 1% /home /dev/hd11admin 256.00 255.62 1% 5 1% /admin /proc - - - - - /proc /dev/hd10opt 512.00 336.83 35% 7007 9% /opt /dev/livedump 256.00 255.64 1% 4 1% /var/adm/ras/livedump isvp17>
The volume group rootvg in my case had one physical volume(hdisk0). All the physical volumes in
volume group are divided into physical partitions(PPs) of the same size.
To check if there is any free space on the physical volume which has rootvg i did
isvp17> lsvg -p rootvg rootvg: PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION hdisk0 active 559 454 111..97..22..112..112
454 = number of free physical partitions(PP).
isvp17> chfs -a size=5G / Filesystem size changed to 10485760 isvp17> df -m Filesystem MB blocks Free %Used Iused %Iused Mounted on /dev/hd4 5120.00 4937.89 4% 9762 1% / /dev/hd2 16896.00 14787.64 13% 43253 2% /usr /dev/hd9var 512.00 232.68 55% 5726 10% /var /dev/hd3 3584.00 3581.39 1% 40 1% /tmp /dev/hd1 256.00 120.68 53% 183 1% /home /dev/hd11admin 256.00 255.62 1% 5 1% /admin /proc - - - - - /proc /dev/hd10opt 512.00 336.83 35% 7007 9% /opt /dev/livedump 256.00 255.64 1% 4 1% /var/adm/ras/livedump isvp17> isvp17> lsvg -p rootvg rootvg: PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION hdisk0 active 559 436 111..97..04..112..112 isvp17>
Next I increased the size of /home filesysem to 15GB
isvp17> chfs -a size=15G /home Filesystem size changed to 31457280 isvp17> lsvg -p rootvg rootvg: PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION hdisk0 active 559 377 111..42..00..112..112 isvp17>
It's good to know that I still have 377 physical partitions free in case I need
to increase it further in the future.
5 comments:
Thanks. I'm new to AIX administration. I did a "lean on the enter key" install of 7.1 and promptly ran out of space for everything that I needed to do. I knew the drive had more space than what was allocated so the question came down to how to change the allocation.
Cheers,
Dave
Dave, thank you for leaving a comment. It's always nice to know that the blog entry has helped.
cheers,
mayur
Thanks for the valuable command
Ditto what Dave said!!!
I too am in a similar situation and have an audience watching me. I needed to increase a file system space pretty quickly. Thank you so much for your help. I'm glad my google search revealed your blog first. Again thank you!
Randall Lucas
Thank you for your feedback Sandeep and Randall, really appreciate it.
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