This is not a regular file, this is a block device. (but, finally in linux all is a file :) )
In a simple way, lvm-thin storage - like a physical hard drive, /dev/pve/vm-100-disk-1 like a partition on that drive.
You can create another disk for that VM with appropriate size. Boot VM from any...
First of all, you must add nfs storage on your proxmox configuration through web interface or manually in storage.cfg (if you know that you do)
After that, you can access to the storages by its names:
where nfs_storage1 and...
You don't describe, what OS in CT used.
For test, I created Proxmox CT from debian 9 template, instal cifs-utils inside CT and try mount smb share from another linux box.
//linux-box/share /mnt/share cifs _netdev,username=xxx,password=yyy,iocharset=utf8 0 0
In my situation...
How you see that?
Inside the storage - hardware raid. Raid logical disk shared as iscsi lun. Where is zfs?
iscsi - is not file share.
We can create numerous raid0 (each for single disk), and export each as iscsi lun, and use it on host as hdd's for zfs (but, IMHO it don't have any sence)
set for VM configuration:
find and replace 5 to 9:
my $MAX_USB_DEVICES = 9;
restart pve-manager.service or reboot host
add usb devices in VM config (sample):
Hard drive crash physically or logically? What OS on VM that cannot start?
type in terminal on proxmox host:
ls -l /mnt/data2/backup
and place output here.