Linux LVM online resize error - resize2fs

[Mydheen]

Hi,

my server is linux RHEL 6.6 (patch version 2.6.32-358.el6.x86_64). i have tried to increase a filesystem online using resize2fs.

the mount point was 1TB already, and i need to increase 2TB more. so the final size would be 3TB.

i had 1 TB size (2 disks) lun, and have extended the VG first using the 2 luns. so i had 2 TB ( and some extra 300GB) free in the VG.

lvextend -l +100%PVS /dev/arch-VG/arch001-vol /dev/emcpowerag1

lvextend -l +100%PVS /dev/arch-VG/arch001-vol /dev/emcpoweraf1

# lvs | grep -i arch001
arch001-vol arch-VG -wi-ao---- 2.93t

above was the output once i did lvextend. then when i tried to do resize2fs, it should increase the new 2TB. but i got the below error.

# resize2fs /dev/arch-VG/arch001-vol
resize2fs 1.41.12 (17-May-2010)
Filesystem at /dev/arch-VG/arch001-vol is mounted on /arch01; on-line resizing required
old desc_blocks = 63, new_desc_blocks = 188
Performing an on-line resize of /dev/arch-VG/arch001-vol to 786423808 (4k) blocks.
resize2fs: Operation not permitted While trying to add group #8064
[root@BEC19-ENC1-7 dev]#

hence requesting your advice on how to go about this. please let me know if any more details required.

Regards,

mydheen

[Mydheen]

Just to add to the above post,

then when i verified what might have gone wrong. i see that one of the disk showing as "unallocatable". please advice.

i tried to change the allocatability. but no luck, may be as this disk is part of vg, i would not be able to perform this pvchange.

# pvdisplay /dev/emcpowerah1
"/dev/emcpowerah1" is a new physical volume of "1000.00 GiB"
--- NEW Physical volume ---
PV Name /dev/emcpowerah1
VG Name
PV Size 1000.00 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID GWYuI7-LY4x-fspx-bUG2-4m8E-Q6rJ-TAYFfe

# pvchange -x y /dev/emcpowerah1
Allocatability not supported by orphan lvm2 format PV /dev/emcpowerah1
0 physical volumes changed / 1 physical volume not changed