Duplicate disk after resize

[ifsuser]

After resizing a disk, the container has two disks assigned to it:

# pvesm list local-lvm


Volid Format Type Size VMID
.....
local-lvm:vm-1105-disk-0 raw rootdir 429496729600 1105
local-lvm:vm-1105-disk-1 raw rootdir 536870912000 1105
...

However, in your configuration you only have the second one:

rootfs: local-lvm:vm-1105-disk-1,size=500G

Can disk-0 be deleted safely?

 

[bbgeek17]

Its unlikely that disk resize caused the duplication. Its more probable that you had a leftover disk from creating/deleting the CT from before.
I would recommend examining the log (journalctl), grepping for disk names and tracing their history. I'd be hesitant to recommend any data deletions without properly researching the source of the data.
Its really your call.

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[ifsuser]

Thank you for your kind instructions

But journalctl does not show anything because the resize was done more than 1 year ago.

Container 1105 configuration uses only disk-1 (local-lvm:vm-1105-disk-1)
But the command "pvesm list local-lvm" shows disk-0 assigned to CT 1105

When trying to delete from the GUI I get the error: "Cannot remove image, a guest with VMID '1105' exists"
The disk is not in use, but deletion is not allow

 

[bbgeek17]

Well, you need to follow the provided instructions - is the disk in the hardware panel of the guest?
If its not, then run "qm disk rescan" and it should pop-up there. Then you can delete it from the above mentioned panel.

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[ifsuser]

No, the disk is not in the panel or in the configuration file: /etc/pve/lxc/1105.conf
But 1105 is a Container. I can't use qm rescan

 

[bbgeek17]

Use a corresponding container command:
man pct

pct rescan [OPTIONS]

       Rescan all storages and update disk sizes and unused disk images.

       --dryrun <boolean> (default = 0)
           Do not actually write changes out to conifg.

       --vmid <integer> (100 - 999999999)
           The (unique) ID of the VM.

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[ifsuser]

The rescan command worked, marking disk-0 as "unused", although it still appears in "pvesm list local-lvm"

But the GUI still won't let you delete it
Can it be deleted from the CLI?

# pct rescan
rescan volumes...
CT 1405: updated volume size of '/backups/shared/vm/1105' in config.
CT 1105: add unreferenced volume 'local-lvm:vm-1105-disk-0' as 'unused0' to config.
CT 1105: updated volume size of '/backups/shared/vm/1105' in config.
CT 1101: updated volume size of '/backups/shared/vm/1101' in config.
CT 1207: updated volume size of '/backups/shared/' in config.

# pvesm list local-lvm
Volid                    Format  Type              Size VMID
local-lvm:vm-1101-disk-0 raw     rootdir   322122547200 1101
local-lvm:vm-1103-disk-0 raw     rootdir   214748364800 1103
local-lvm:vm-1105-disk-0 raw     rootdir   429496729600 1105
local-lvm:vm-1105-disk-1 raw     rootdir   536870912000 1105
local-lvm:vm-1120-disk-0 raw     rootdir    85899345920 1120

 

[bbgeek17]

But the GUI still won't let you delete it

Are you deleting it from the right panel? i.e. from the VM's hardware panel?

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[ifsuser]

I am using the "Resources" panel of the container 1105
In the VM they appear as Hardware but in containers I don't see anything else

 

[bbgeek17]

Click on the unused0 disk, then press the "Remove" button on top. It'd be helpful if you provide actual error you are getting, if that doesnt work.

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[ifsuser]

doesn't work either: contains File System in use!
But this File System is the duplicate from when I resized from disk-0 to disk-1.

How can it be in use?

 

[bbgeek17]

As I mentioned previously, its highly unlikely that resize had anything to do with your "duplicate" disk issue.
I dont know why the disk/filesystem is in-use, may be its mounted/attached somewhere else. At this point, reboot your host and it will likely work.

You can also plug the message in google "lvremove logical volume contains a filesystem in use" and read some of the discussion around this.

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox