=====Manage Storage Stack=====

interestingly enough he does not create partitions before creatting the pv

here is a lvresize comand

<code> lvresize -r -L 2G /dev/vg_DB/lv_maria</code>
-r is to extend filesystem
-L specifies the final size of LV and 
the last bit i cnonical path of lv

to remove pv that being flaky here are steps
1: add a new disk 
<code> pvcreate /dev/sdX
vgextend volume-name /dev/sdX </code>

2: move data out of flaky disk say /dev/sdY
<code> pvmove /dev/sdY </code>
No need to specify a destination

3: now you can remove the flaky disk
<code> vgreduce volumegroup_name /dev/sdY </code>

3: stop the disk from being a physical volume disk
<code> pvremove /dev/sdY </code>