Reduce the size of Logical volume

[zali12]

I was suppose to add some space in Logical volume A but I added it in e.g LV-B (It is in use I cannot remove it) . Now I need to reduce LV-B to original size so that I can use this space to increase LV-A. I donot know how to reduce the logical volume.

Thanks
Zali

 

[hirschaj]

Which version of AIX are you running?


Jim Hirschauer

http://www.aixexpert.com

 

[zali12]

AIX 5200-05

 

[hirschaj]

Ouch, in AIX 5.3 you can shrink FS/LV on the fly, but not in AIX 5.2. Unfortunately this will require an outage. You need to backup, blow away, recreate, and restore to claim back that space. :-(


Jim Hirschauer

http://www.aixexpert.com

 

[zali12]

yes I know this. Anyway how I can do it in 5.3 (FMI)

 

[hirschaj]

I assume you have a filesystem on the LV. You would use the chfs command with the -a flag and specify the new, smaller size. It will automatically shrink the LV for you.


Jim Hirschauer

http://www.aixexpert.com

 

[zali12]

Thanks

 

[p5wizard]

or check out

http://www.compunix.com

HTH,

p5wizard

 

[strus]

And you can also now defragment your VG ... welcome in windows !! ))