Can't extend lv

[Duffster]

Hi,

I have recently increased the size of my pv and I am now attempting to increase the lv but I get the following error:

# vgdisplay
  --- Volume group ---
  VG Name               VolGroup00
  System ID            
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  20
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                8
  Open LV               8
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               249.97 GB
  PE Size               32.00 MB
  Total PE              7999
  Alloc PE / Size       2013 / 62.91 GB
  Free  PE / Size       5986 / 187.06 GB
  VG UUID               Zme52J-J22F-PisG-oOSQ-wwB2-QJ29-ZpofJk

# lvextend -L +180G /dev/VolGroup00/tmp_vol
  Extending logical volume tmp_vol to 182.00 GB
  device-mapper: reload ioctl failed: Invalid argument
  Failed to suspend tmp_vol

Any ideas on how I can resolve this?

R,
D.

[Chhaya_Z]

Hi,

There are three options to resolve this problem, any one will resolve the problem:

1>Extend the partition size to use the extended space. You can use parted or fdisk (using fdisk, you may need to delete the partition and recreate it with old start cylinder and new end cylinder).

2>Create a new partition in extended space using fdisk /dev/sdX. You can pvcreate on this and extended VG,LV and at last file system also. Replace "X" with proper device name.

3>Inform device-mapper of the underlying changes:

[root@IT-371723 ~]# kpartx -d /dev/mapper/testvg-lvol0
[root@IT-371723 ~]# dmsetup remove /dev/mapper/testvg-lvol0
[root@IT-371723 ~]# vgscan

Regards,

Chhaya

[Duffster]

Hi,

I seen this on the redhat website also but it does not work:

# kpartx -d /dev/mapper/VolGroup00-tmp_vol
# dmsetup remove /dev/mapper/VolGroup00-tmp_vol
device-mapper: remove ioctl failed: Device or resource busy
Command failed

It seems like a standard enough error but nothing on it on the web in terms of resolution???

R,

D.

[Chhaya_Z]

HI,

Check if the device is already mounted. Unmounting the device and then trying  might work.

Regards,
Chhaya

[Duffster]

Hi,

I have already tried this and it doesn't make any difference.

R,

D.

[Modris Bremze]

What's the distro/version? What are kernel, device mapper and lvm versions? Do you use a custom kernel?