Hello All-

I am running a test using lvm2, specifically using the pvmove command.

What I've done is added drive sdb1 to my volume group vg_rh6

# vgextend vg_rh6 /dev/sdb1
No physical volume label read from /dev/sdb1
Physical volume "/dev/sdb1" successfully created
Volume group "vg_rh6" successfully extended

I then created a logical volume lv_datas

# lvcreate -L 250m -n lv_datas vg_rh6
Rounding up size to full physical extent 252.00 MiB
Logical volume "lv_datas" created

I format my logical volume lv_datas

# mkfs.ext4 /dev/vg_rh6/lv_datas

And finally mount it

# mount /dev/vg_rh6/lv_datas /mnt/lvdata/

I copy data over

# cp -R /etc/sysconfig/ /mnt/lvdata/

I add a second drive to my volume group

# vgextend vg_rh6 /dev/sdc1

No physical volume label read from /dev/sdc1
Physical volume "/dev/sdc1" successfully created
Volume group "vg_rh6" successfully extended

It shows up fine

# pvs
PV         VG     Fmt  Attr PSize  PFree
/dev/sda2  vg_rh6 lvm2 a-   15.51g    0
/dev/sdb1  vg_rh6 lvm2 a-    5.00g 4.75g
/dev/sdc1  vg_rh6 lvm2 a-    4.00g 4.00g

I create a new logical volume

# lvcreate -L 300m -n lv_bkp vg_rh6
Logical volume "lv_bkp" created

And this shows up fine also

# lvs
LV       VG     Attr   LSize   Origin Snap%  Move Log Copy%  Convert
lv_bkp   vg_rh6 -wi-a- 300.00m
lv_datas vg_rh6 -wi-ao 252.00m
lv_root  vg_rh6 -wi-ao  11.54g
lv_swap  vg_rh6 -wi-ao   3.97g

I don't know that this is a big deal, but I also format this new  
logical volume

# mkfs.ext4 /dev/vg_rh6/lv_bkp
mke2fs 1.41.12 (17-May-2010)

Then I finally initiate pvmove

# pvmove /dev/sdb1 /dev/sdc1
   /dev/sdb1: Moved: 2.2%
   /dev/sdb1: Moved: 45.7%
   /dev/sdb1: Moved: 100.0%

Once it finishes I check the original physical volume and it says that  
it is empty.

# pvdisplay /dev/sdb1
   --- Physical volume ---
   PV Name               /dev/sdb1
   VG Name               vg_rh6
   PV Size               5.00 GiB / not usable 4.00 MiB
   Allocatable           yes
   PE Size               4.00 MiB
   Total PE              1279
   Free PE               1279
   Allocated PE          0
   PV UUID               KqVMC0-cH8N-P0II-I27C-HFXF-sZIZ-o0LQUl

The second physical volume shows to have data.

# pvdisplay /dev/sdc1
   --- Physical volume ---
   PV Name               /dev/sdc1
   VG Name               vg_rh6
   PV Size               4.00 GiB / not usable 4.00 MiB
   Allocatable           yes
   PE Size               4.00 MiB
   Total PE              1023
   Free PE               885
   Allocated PE          138
   PV UUID               i11arc-VXrl-e72V-9N9c-H2fw-laTC-HFM0Pw

Ok, here is my issue. What step do I take next to access the newly  
moved data on /dev/sdc1?

I've tried mounting the logical volume that I created previously  
(lv_bkp) to my system and although pvdisplay shows that I got data on  
/dev/sdc1, I don't know what I need to do to access it?

There has to be a missing step or something I'm doing wrong?

Help is greatly appreciated.

David-

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