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[Question] Alternative to NFS for Proxmox Backup Server (lemmy.ml)

submitted 6 months ago by brownmustardminion@lemmy.ml to c/selfhosted@lemmy.world

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I have a backup server running Proxmox Backup and OMV in separate VMs. OMV provides the storage as an NFS to the proxmox backup server VM.

I have multiple remote servers that connect to the proxmox backup server but recently I keep having issues with backups. Something about file lock estale.

Is there an alternative to NFS I can use in OMV to provide the storage for the proxmox backup server?

I know there are vastly different configuration options, but I have some other things set up with OMV so I’m kinda stuck on that.

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[–] pyrosis@lemmy.world 4 points 6 months ago (6 children)

What is the underlying filesystem of the proxmox hypervisor and how did you pass storage into the omv vm? Also, is anything else accessing this storage?

I ask because...

The "file lock ESTALE" error in the context of NFS indicates that the file lock has become "stale." This occurs when a process is attempting to access a file that is locked by another process, but the lock information has expired or become invalid. This can happen due to various reasons such as network interruptions, server reboots, or changes in file system state.

[–] brownmustardminion@lemmy.ml 1 points 6 months ago* (last edited 6 months ago) (1 children)

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.

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