Underlying system is running Proxmox. From there I have the relevant two VMs: OMV and Proxmox Backup Server. The hard drives are passed into OMV as SCSI drives. I had to add them from shell as the GUI doesn’t give the option. Within OMV I have the drives in a mergerfs pool, with a shared folder via NFS that is then selected as the storage from within the Proxmox Backup Server VM. OMV has another shared folder that is used by a remote duplicati server via SSH(SFTP?), but otherwise OMV has no other shared folders or services. Duplicati/OMV have no errors. PBS/OMV worked for a couple of months before the aforementioned error cropped up.
Also possibly relevant: No other processes or services are setup to access the shared folder used by PBS.
Looks like my reply got purged in the server update.
Running Proxmox baremetal. Two VMs: Proxmox Backup Server and OMV. Multiple HDDs passed through directly as SCSI to OMV. In OMV they're combined into a mergerfs pool. Two shared folders on the pool: one dedicated to proxmox backups and the other for data backups. The Proxmox backup shared folder is an NFS share and the other shared folder is accessed by a remote duplicati server via SSH (sftp?). Within the proxmox backup server VM, the aforementioned NFS share is set up as a storage location.
I have no problems with the duplicati backups at all. The Proxmox Backup Server was operating fine as well initially but began throwing the estale error after about a month or two.
Is there a way to fix the estale error and also to prevent it from reoccurring?