[SOLVED] Maximum number of logical volumes (12) reached in volume group pve

NGNear

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Jun 29, 2019
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Hi all,

I am very new to the Proxmox scene (and Hypervisation in general), and I find it quite easy to figure out how to do stuff most of the time by following the Proxmox forum and general KVM tutorials.

2 days ago, I finally decided to wipe my XCP-NG powered laptop and load it with Proxmox. It was a clean install, so it was quite easy to add it to my cluster.

But I quickly run into the error message described in the title as I try to take snapshots or create VM:
Code:
TASK ERROR: lvcreate 'pve/vm-104-state-fight' error:   Maximum number of logical volumes (12) reached in volume group pve
Code:
TASK ERROR: unable to create VM 106 - lvcreate 'pve/vm-106-disk-0' error:   Maximum number of logical volumes (12) reached in volume group pve

As the error message indicated, I have 12 logical volumes, like below:
Bash:
root@laptop:~# lvs
  LV                                           VG  Attr       LSize    Pool Origin        Data%  Meta%  Move Log Cpy%Sync Convert
  data                                         pve twi-aotz-- <467.14g                    21.27  1.41                       
  root                                         pve -wi-ao----   96.00g                                                       
  snap_vm-104-disk-1_TimeMachineAndNetworkDisk pve Vri---tz-k   32.00g data vm-104-disk-1                                   
  swap                                         pve -wi-ao----    7.00g                                                       
  vm-102-disk-0                                pve Vwi-aotz--   52.00m data               100.00                             
  vm-102-disk-1                                pve Vwi-aotz--   32.00g data               100.00                             
  vm-102-disk-2                                pve Vwi-aotz--   32.00g data               100.00                             
  vm-103-disk-0                                pve Vwi-a-tz--   32.00g data               1.93                               
  vm-104-disk-0                                pve Vwi-a-tz--   32.00g data               2.91                               
  vm-104-disk-1                                pve Vwi-aotz--   32.00g data               100.00                             
  vm-104-state-TimeMachineAndNetworkDisk       pve Vwi-a-tz--   <4.49g data               12.96                             
  vm-105-disk-0                                pve Vwi-aotz--   32.00g data               3.10

What I don't understand is why wouldn't it allow me to add logical volume beyond 12, I do not have such a problem in my desktop.

My setup:
DesktopLaptop
Cluster groupmyClustermyCluster
Node namepvelaptop
EditionCommunityCommunity
Logical volumeDefault (one local, one local-lvm)Default (one local, one local-lvm)
Volume groupSingle volume group called "pve"Single volume group called "pve"
Physical VolumeTwo, the second volume /dev/sdb1 is in logical volume "pve" lumped in local-lvmOne, just the built-in drive of the laptop

Is the info provided enough? Could someone give me a hint on what is causing this?
 
Last edited:
Code:
TASK ERROR: lvcreate 'pve/vm-104-state-fight' error:   Maximum number of logical volumes (12) reached in volume group pve
Code:
TASK ERROR: unable to create VM 106 - lvcreate 'pve/vm-106-disk-0' error:   Maximum number of logical volumes (12) reached in volume group pve


Check max LV settings via
Code:
vgdisplay
 
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Check max LV settings via
Code:
vgdisplay
Thanks Richard!
I checked with this command, and my lvmax is indeed 12. What is the reason behind this seemingly random limit? My desktop node has an lvmax of 0 and does not limit how many lv I can create.
For anyone who is experiencing similar things; I find the following command after Richard pointed me the the right direction:
Bash:
vgchange -l 0 voluegroupname
Regards,
Bruce
 
I checked with this command, and my lvmax is indeed 12. What is the reason behind this seemingly random limit? My desktop node has an lvmax of 0 and does not limit how many lv I can create.

It must had happened by mistake - Proxmox does not set any limit at all (i.e. always 0).
 
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