Adding CIFS as external storage giving errors for unreachable storage

[BinaryBush]

Hi Guys,

I have an Unraid Server with a SMB share named proxmoxbackups that I would like to use as a network storage for backups from my proxmox ve server, however, when I try to add it using the webGUI or command line, I get this error:

create storage failed: error during cfs-locked 'file-storage_cfg' operation: unable to activate storage 'external_storage' - directory '/mnt/pve/external_storage' does not exist or is unreachable (500)

However, if I SSH into my proxmox server, I see that /mnt/pve/external_storage does indeed exist. I have tried several different shares and different mount point names, it creates the folder but will not mount.

I now have a bunch of empty directories in /mnt/pve/ because it won't allow me to delete them, it says that they are busy when I run:

rmdir external_storage

This is the error I receive:

rmdir: failed to remove 'external_storage': Device or resource busy

 

[Moayad]

Hi,

what says the mount | grep "/mnt/pve/external_s*" command?

Can you send the output of pvesm scan cifs $mount-IP

 

[BinaryBush]

Hi,

what says the mount | grep "/mnt/pve/external_s*" command?

Can you send the output of pvesm scan cifs $mount-IP

Hi Moayad,

Thank you for the response, I actually figured out that this is an issue with Unraid's caching system, once I disabled the caching feature I was able to add the share. As for the device or resource busy error, that was due to the filesystem being mounted and I was able to delete the old mount points after unmounting them with umount.

 

[Moayad]

Hi,

Glad you have solved your issue!

Thanks for sharing your solution, you can make your thread as [SOLVED] to help other people who have the same issue Thanks!

have a nice day

 

[bluedog]

I also can confirm that using unRaid share that does not use Cache works.
I also had to reboot cluster, but appears to be working just fine