remove vg 3

[AIXFinder]

I did these to remove prod1vg.
varyoffvg prod1vg
exportvg prod1vg

But, I am not sure if prod1vg was permanently removed. Are there any other commands to remove prod1vg to make sure?

 

[khalidaaa]

well, yeah that should be it!

 

[ogniemi]

prod1vg still exist on the disk but after exportvg is not available in the system.

you could use importvg command to have the VG avaiable again in the system.

I think that to completly destroy the VG from the disk you should create new one on that disk (use -f (force) switch during such VG creation).

You could also clear PVID from the disk running command:

chdev -l hdiskX -a pv=clear

but it does not distroy the VG but the VG is not possible to be imported. (in that case someone not authorized could re-create orginal disk's PVID using dd command - I tried it and it is possible - and then import your confidental data) therefore I think if you want to distroy your VG the new-dummy VG creation on the disk is a better way.

 

[FrankieAIX]

I agree with ogniemi. The safest route to go is to create a new dummy vg on the volumes that contained your prod1vg. This will erase all connections to that VG. Or simply run a format if you have the time to.


-FrankieAIX

 

[AIXFinder]

thx so much

 

[MoreFeo]

Adn won't reducevg work as well?

 

[p5wizard]

Well, reducevg cleans up the VGDA (volume group descriptor area) on the disk, but the data that was in the filesystems on the disk is still on it - albeit kind of difficult but not impossible to get to.
If you format the hard disk, or create a new VG with the disk and a new FS and fill that FS with dummy data, you make it harder for the next person/server to get at the data.
If it is a SAN LUN, you can drop the volume in the SAN box and recreate it there, that would also 'reformat' the storage for you.


HTH,

p5wizard