vgcreate : link between -e and -p parameters ?

[Mr Maudouit Mr Chollet]

Hi,
I was wondering if anyone could tell me the interaction between the -e and the -p parameters in the vgcreate command. I tried to create a vg with -e 9000 and -p 60 and it didn't work. It worked only with -e 4500 and -p 60. If anyone could help it would be great. Thanks.

[Wodisch]

Hello,
to make it a short story: choose a PE-size of 32MB or
64MB, set max_pe to 512 or 1024 and you will be able
to even add a 64GB disk later on. If you are using some
kind of disk-array be careful to increase the max_pv
properly. The basic idea is to be able to add another
drive, say, in two years - which will be much bigger than
todays drives. I have a e-mail from Bill Hassel himself,
about that topic, and he is using PEs of that sizes, too.
HTH,
Wodisch