lvm2 pvmove Issue
I am running a test using lvm2, specifically using pvmove.
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?