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Error while extending logicalvolume

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Operating Systems Linux Red Hat Error while extending logicalvolume
# 1  
Old 04-26-2016
Error while extending logicalvolume
Hello all,

I tried to extend my lvm today, found the following error,

Code:
lvextend -L +10G /dev/vg/a
  Extending logical volume a to 60.21 GB
  device-mapper: reload ioctl failed: Invalid argument
  Failed to suspend a

Any help
# 2  
Old 05-03-2016
Could you post the result of
Code:
pvs -a -v

Also, please, search and post messages in /var/log/messages containing kernel: device-mapper entries

Perhaps, something like:
Code:
perl -ne '/kernel:\s+device-mapper/ and print' /var/log/messages

# 3  
Old 05-03-2016
Hello Aia ,

Thanks for your reply,

Code:
pvs -a -v
    Wiping cache of LVM-capable devices
  PV                              VG         Fmt  Attr PSize   PFree   DevSize PV UUID
  /dev/VolGroup00/LogVol01                        --        0       0    1.00G
  /dev/VolGroup00/LogVol02                        --        0       0    8.00G
/dev/sda2                       VolGroup00 lvm2 a-    29.88G   1.38G  29.90G hmTbbr-3IaH-Pl8f-pw0Z-FArk-2wtW-UecJpM
  /dev/sdb1                       vg lvm2 a-   420.00G 120.67G 300.00G tuJPoe-nHD6-R3C7-Mcss-njlT-yMei-e25Kde
  /dev/sdb2                       vg lvm2 a-   100.00G 100.00G 100.00G fYWd52-Xf65-zx7G-9AVg-QoWZ-YVM9-Ee04PM
  /dev/vg/a              --        0       0  149.64G
  /dev/vg/b                 --        0       0   50.21G
  /dev/vg/c                     --        0       0   99.46G


Code:
perl -ne '/kernel:\s+device-mapper/ and print' /var/log/messages
May  4 10:21:05 bneftp01 kernel: device-mapper: table: device 8:17 too small for target
May  4 10:21:05 bneftp01 kernel: device-mapper: table: 253:7: linear: dm-linear: Device lookup failed
May  4 10:21:05 bneftp01 kernel: device-mapper: ioctl: error adding target to table
May  4 10:24:23 bneftp01 kernel: device-mapper: table: device 8:17 too small for target
May  4 10:24:23 bneftp01 kernel: device-mapper: table: 253:7: linear: dm-linear: Device lookup failed
May  4 10:24:23 bneftp01 kernel: device-mapper: ioctl: error adding target to table
May  4 10:24:35 bneftp01 kernel: device-mapper: table: device 8:17 too small for target
May  4 10:24:35 bneftp01 kernel: device-mapper: table: 253:8: linear: dm-linear: Device lookup failed
May  4 10:24:35 bneftp01 kernel: device-mapper: ioctl: error adding target to table
May  4 10:24:41 bneftp01 kernel: device-mapper: table: device 8:17 too small for target
May  4 10:24:41 bneftp01 kernel: device-mapper: table: 253:9: linear: dm-linear: Device lookup failed
May  4 10:24:41 bneftp01 kernel: device-mapper: ioctl: error adding target to table
May  4 10:31:33 bneftp01 kernel: device-mapper: table: device 8:17 too small for target
May  4 10:31:33 bneftp01 kernel: device-mapper: table: 253:9: linear: dm-linear: Device lookup failed
May  4 10:31:33 bneftp01 kernel: device-mapper: ioctl: error adding target to table
May  4 10:33:10 bneftp01 kernel: device-mapper: table: device 8:17 too small for target
May  4 10:33:10 bneftp01 kernel: device-mapper: table: 253:9: linear: dm-linear: Device lookup failed
May  4 10:33:10 bneftp01 kernel: device-mapper: ioctl: error adding target to table
May  4 10:33:20 bneftp01 kernel: device-mapper: table: device 8:17 too small for target
May  4 10:33:20 bneftp01 kernel: device-mapper: table: 253:9: linear: dm-linear: Device lookup failed
May  4 10:33:20 bneftp01 kernel: device-mapper: ioctl: error adding target to table
May  4 10:33:44 bneftp01 kernel: device-mapper: table: device 8:17 too small for target
May  4 10:33:44 bneftp01 kernel: device-mapper: table: 253:9: linear: dm-linear: Device lookup failed
May  4 10:33:44 bneftp01 kernel: device-mapper: ioctl: error adding target to table


Thanks in advance
# 4  
Old 05-04-2016
Quote:
Originally Posted by gull05
Code:
pvs -a -v
    Wiping cache of LVM-capable devices
  PV                              VG         Fmt  Attr PSize   PFree   DevSize PV UUID
.
.
.
  /dev/sdb1                       vg lvm2 a-   420.00G 120.67G 300.00G tuJPoe-nHD6-R3C7-Mcss-njlT-yMei-e25Kde
  /dev/sdb2                       vg lvm2 a-   100.00G 100.00G 100.00G fYWd52-Xf65-zx7G-9AVg-QoWZ-YVM9-Ee04PM


Code:
perl -ne '/kernel:\s+device-mapper/ and print' /var/log/messages
May  4 10:21:05 bneftp01 kernel: device-mapper: table: device 8:17 too small for target

May  4 10:24:23 bneftp01 kernel: device-mapper: table: device 8:17 too small for target

May  4 10:24:35 bneftp01 kernel: device-mapper: table: device 8:17 too small for target

Thank you for posting the output. That helps to confirm the issue. I have edited your post with some of the relevant information.
The reported PV size (PSize) is bigger (420.00G) than the device(DevSize) size (300.00G). Also, the log messages confirm that with the message highlighted in red. It is obvious something has gone wrong with it. The PV can not be bigger than the device it holds it.

My suggestion:
Backup your data if it is important.
umount any volume you have on the group vg:
Code:
  /dev/vg/a 
  /dev/vg/b
  /dev/vg/c

Resize the pv for /dev/sdb1 with the following command:
pvresize /dev/sdb1
Check again with pvs -a -v or pvdisplay /dev/sdb1
Try to lvextend /dev/vg/a again.
mount the lvm volumes again.
Last edited by Aia; 05-06-2016 at 12:28 AM..
This User Gave Thanks to Aia For This Post:
gull05
# 5  
Old 05-04-2016
Thanks Aia,

I will try that out by Monday and let you know how it turned out to be
# 6  
Old 05-09-2016
Hello Aia,

I have raised for a change request, i just want to double check with you the commands to be executed after taking the backup.

Code:
1.#umount /dev/vg/a
2.#umount /dev/vg/b
3.#umount /dev/vg/c

Resize PV with the following command,

Code:
#pvresize /dev/sdb1(will this shrink the dev?)


pvdisplay /dev/sdb1 

lvextend -L +30G /dev/mapper/vg_ftpdata-lv_a
lvextend -L +30G /dev/mapper/vg_ftpdata-lv_b
lvextend -L +30G /dev/mapper/vg_ftpdata-lv_c


#mount /dev/vg/a
#mount /dev/vg/b
#mount /dev/vg/c

Kindly confirm.Thanks
# 7  
Old 05-09-2016
Quote:
Originally Posted by gull05
Hello Aia,

I have raised for a change request, i just want to double check with you the commands to be executed after taking the backup.

Code:
1.#umount /dev/vg/a
2.#umount /dev/vg/b
3.#umount /dev/vg/c

Resize PV with the following command,

Code:
#pvresize /dev/sdb1(will this shrink the dev?)


pvdisplay /dev/sdb1 

lvextend -L +30G /dev/mapper/vg_ftpdata-lv_a
lvextend -L +30G /dev/mapper/vg_ftpdata-lv_b
lvextend -L +30G /dev/mapper/vg_ftpdata-lv_c


#mount /dev/vg/a
#mount /dev/vg/b
#mount /dev/vg/c

Kindly confirm.Thanks
Quote:
#pvresize /dev/sdb1(will this shrink the dev?)
If it can it will reconfigure how the pv sees the size of device to the correct size. Nothing is done to the /dev/sdb1

Quote:
lvextend -L +30G /dev/mapper/vg_ftpdata-lv_a
lvextend -L +30G /dev/mapper/vg_ftpdata-lv_b
lvextend -L +30G /dev/mapper/vg_ftpdata-lv_c
I do not know where those come from, everything you have shown says that it should be:
Code:
lvextend -L+30G /dev/mapper/vg-a
lvextend -L+30G /dev/mapper/vg-b
lvextend -L+30G /dev/mapper/vg-c

or
Code:
lvextend -L+30G /dev/vg/a
lvextend -L+30G /dev/vg/b
lvextend -L+30G /dev/vg/c

Note: Do not forget that you have to resize the file system, afterward, to recognize the new space, but I have not mentioned that since it is another topic that I assume you know about it.
This User Gave Thanks to Aia For This Post:
gull05
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