[linux-lvm] lvextend

[Terry Rigby]

thx Sean, I had just stumbled upon that as well.  another alternative seems to 
be pvdislplay /dev/hde |grep "PV Size" and then use that size in GB using 
lvextend -L +XXG /path/to/lv

Terry Rigby

On June 22, 2005 06:08 pm, Sean Boyd wrote:
> On Wed, 2005-06-22 at 17:16 -0700, Terry Rigby wrote:
> > I am trying to add a full hard drive to my LV by following the directions
> > at TLDP.org.  It says there to use lvextend -L +XXG where XX is the size
> > in GB you want to add to the LV.  Is there a more simple way to just add
> > a whole hard drive ie: /dev/hde
> >
> > It seems like a pain to have to manually figure out the size of the hard
> > drive then add it using lvextend -L +200GB for a 200GB hard drive
> > especially since we all know its not actually 200GB.
>
> You could increase the LV by using the remaining free physical extents
> (PE).
>
> To check how many PE's are available after extending the VG run
> vgdisplay and check "Free  PE / Size". The first value will give you the
> total number of PE's available.
>
> Then extend your LV using the -l switch to specify PE's rather than
> having to determine a size using the -L switch.
>
> For example "lvextend -l +25 /dev/volGroup00/myLVM" will extend myLVM by
> 25 PE's.
>
> Of course you then need to extend to file system to be able to use this
> extra space :)
>
> --Sean
>
>
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