Ok, I´ve discovered where the problem is,
By default, pv metadata size is 1020k, but two copies, so 510k = 522240bytes
pvs -o mda_size /dev/sdb1
PMdaSize
1020.00k
vgs -o mda_free raid0
VMdaFree
2.00k
:rolleyes:
I cannot increase size after pv is created, so...delete it and create with large...