My layout of LUKS+LVM

Layout (physical on top):
+-------+-----------------------+-----------------------+-------+
|		HDD1		|		HDD2		|
+-------+-----------------------+-----------------------+-------+
|sda1 	|		sda2	|	sdb2		| sdb1	|
+-------+-----------------------+-----------------------+-------+
|ext3 	|  LUKS (named lvm)	| LUKS (named lvm2) 	| NTFS	|
+-------+---------------------+-------------------------+-------+
	|		LVM vgroup			|
	+---------------+-------------------------------+
	| ext4 (/)	|	btrfs (/home)		|
	+---------------+-------------------------------+