I am wondering what the advantages and disadvantages of the following two scenarios are.
LVM physical volume directly on SAN volume
LVM physical volume on a single partition, which is spanning the whole SAN volume
parted /dev/sda -s -- mklabel gpt mkpart primary 0 -1
I read in the LVM-Manual, that PV on the whole disk is not recommended because of management issues with other OSes that don't understand LVM-labels. But I am not sure, whether this really applies to SAN volumes in practice.
Furthermore I think partitioning adds another layer with possible problems, like device name changes of mapped devices on the partition device.
What is better practice?