Thanks, now it seeems very logical. The system that is being configured has lvm on top of dm-crypt, are there any benefits for using one value over another as long it is a multiple of 512? e.g. The LUKS volume is aligned to 1024K this is a multiple of 512 then lvm is aligned to 512K with pvcreate --metadatasize 512k /dev/mapper/XXX, i could also align dm-crypt to 4096K which is a multiple of 512 or maybe align lvm to 1024K instead. Would it make any difference? _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt