LVM

[Parth G Pandya]

I have created the Physical volume and the size of my PE is default 4MB. Now i want to change it to 8MB. How can i do that?

[Senthil Kumar .A_1]

You can't change it on the fly. The PE size parameter is determined by vgcreate command not by pvcreate. The PE size for a PV is choosen depending upon what VG you put that PV into. If that VG was created with PE size of 4 MB, then the PE on PV's will be 4 MB when allocated to that VG.

If you need to choose a PE size for PV more the 4MB (Default) for existing VG, then you need to backup the data, remove the VG, recreate the new VG with "-s 8" option to vgcreate command and recreate the LV's and FS as before and restore the data.

If you do not want to meddle with the existing VG, then its just simple. Create a new VG with "-s 8" as option to vgcreate command. If you add any PV to this new VG, the PE size will be 8 MB.

SK

[Parth G Pandya]

i have got the solution.