Changing the MAX PP to 2032

[malki]

FOr adding somme disk with 32Go I must recreate the VG with MAX PP =2032
This action can cause any anomalies for the system ? for any problems

 

[PSD]

Malki,

If you are on AIX 4.3.1 and beyond you do not need to recreate a volume group to change the maximum number of PP's per PV, you can do this on-line:

Use

chvg -t 2 <vgname>

Check via lsvg <vgname> - max. PP's per PV should now be 2032 i.e. 1016 * by a factor of 2 = 2032. The maximum number of physical volumes will reduce from 32 to 16 but you will still be able to have 32,512 physical partitions per volume group.

If you want to read up about it, changing the max. number of PP's per PV in covered in detail on the IBM technical help forum:

http://techsupport.services.ibm.com/

I have done it many times and it works quite well.

Cheers
PSD
IBM Certified Specialist - AIX V4.3 Systems Support
IBM Certified Specialist - AIX V4 HACMP