Expand logical volume for LVM metadata?

[Filefly]

Hello,

I ran into an issue recently where I started getting I/O errors on all of my VMs. After doing some digging I found that the LVM metadata was 100% in use. I attempted to increase the size of the LV that stores the metadata like this:

lvextend --poolmetadatasize +1G pve/data

but got an error which stated I couldn't proceed because there were no more extents available to do so.

I managed to fix the problem temporarily by deleting the spare copy of the metadata and using the resulting free extents to extend the original metadata LV; however, I'd like to avoid doing this long term. Is there any way I can use some of the available free space on the data LV to accomplish this?

I already attempted to resize the data LV, but because I'm using thin provisioning, this doesn't appear to be supported.

hxxps://i.imgur.com/qiQTtrl.png

Thank you for any help you can provide!

 

[Alwin]

The safest way is to move the VM disks away from the storage and reduce the LVs size. I suppose you have an older Proxmox VE installation or upgraded from it. As the metadata pool size was increased to 1% of the VG size on newer installations to avoid this issue.