@lawrencesystems Maybe get behind and help with code and/or sponsorship of this feature request. https://xcp-ng.org/forum/topic/8252/tag-based-selection-for-multiple-vdi-storages/8 Cause this is a part required for what you are looking for as it will increase tag functionality. Specifically enabling tags to specify the affinity for where VDIs are stored (which SR they go to). There's already this feature present for VMs to ensure that they go to the correct hosts.

hi @lawrencesystems You still need to enable it in config fr now. I hope we 'll be able to improve the ui to enable it on a per backup setting later The nbd protocol use the 10809 port in TCP by default. XO only read from this port f the host. The Nbd setting is used for the whole xo, regardeless of the pool The lock have been replaced by a select, which is more self explanatory . I think the main control pint is to check if there is multiple NBD network for a VM, XO use the first one returned by the Xapi, and it may be , for example, a managemet network as opposed to a backup / high speed one Regards

It is released! Kudos to the XO team (and @Danp for spotting another quirk)

@lawrencesystems We added the healthcheck for full backup (here : https://github.com/vatesfr/xen-orchestra/pull/6401 ) Also we removed our js smb implementation ( https://github.com/vatesfr/xen-orchestra/commit/b50e95802c6a876d4e6ffd0c62c209a187b1bfb2 ) to try to circumvent the strange samba comportment fbeauchamp opened this pull request in vatesfr/xen-orchestra closed fix(backups): add healthcheck to full backup #6401 0 julien-f committed to vatesfr/xen-orchestra feat(fs): remove JS based SMB handler It's not well tested nor maintained.

@florent Yes, I have the cifs-utils installed.

Since the update I have run full backup that have taken over an hour to complete due to their size and many smaller delta backups and the error has not come up again. I assume whatever was causing the error was fixed in the xo-server 5.84.2 update.

That's the part where are potential/future public API could be very helpful