[linux-lvm] added a physical volume but df reports no joy

[Mark <mark@transvirtual.com>]

hi all.

so when my first logical volume filled up i added a third
physical volume with 'pvcreate /dev/hdx' then 
'vgextend vol_group_name /dev/hdx' then 'lvextend -L 53000 /dev/vol_group/log_vol /dev/hdx'.
i had 35GB and added another 20GB disk for a possible 55GB but after the lvextend
the kernel isn't seeing the new volume size - that is i still only have 35GB of usable
storage ( including some PEs that when allocated will have a neglible impact on the 
total volume size needed ).

is this because set the logical volume size as opposed to extending it? 

the logical volume is now at almost %100 and won't take any more data ( sans those extra PEs )

here's a verbose vgdisplay:

glimmung:~# vgdisplay foo -v
--- Volume group ---
VG Name               foo
VG Access             read/write
VG Status             available/resizable
VG #                  0
MAX LV                256
Cur LV                1
Open LV               1
MAX LV Size           255.99 GB
Max PV                256
Cur PV                3
Act PV                3
VG Size               54.16 GB
PE Size               4 MB
Total PE              13866
Alloc PE / Size       13250 / 51.76 GB
Free  PE / Size       616 / 2.41 GB
VG UUID               oBe1zH-ifW2-1Lhx-nAGe-UP5t-0Maw-WryAw7

--- Logical volume ---
LV Name                /dev/foo/lvol1
VG Name                foo
LV Write Access        read/write
LV Status              available
LV #                   1
# open                 1
LV Size                51.76 GB
Current LE             13250
Allocated LE           13250
Allocation             next free
Read ahead sectors     120
Block device           58:0


--- Physical volumes ---
PV Name (#)           /dev/hda7 (1)
PV Status             available / allocatable
Total PE / Free PE    4076 / 0

PV Name (#)           /dev/hdb1 (2)
PV Status             available / allocatable
Total PE / Free PE    4885 / 179

PV Name (#)           /dev/hdc1 (3)
PV Status             available / allocatable
Total PE / Free PE    4905 / 437


thanks!

-- 
  Mark Garey                            Tel:     (415) 243-4055 x1023
  Transvirtual Technologies, Inc.,      Fax:     (415) 243-4056
  San Francisco, CA. USA                Email:   mark@transvirtual.com