@olivierlambert
So it looks like the issue is not related to object lock or immutability but rather Backblaze not handling the merge requests very well. Not sure why this isn't impacting the other backup job without object lock, but anyways.... guess we're in the market for a different storage provider.

@acebmxer
Thanks! Hopefully they will add this... one step at a time, but nice to see XCP-ng getting more support from third parties.

@Pilow

Nice! Has anyone tried item level restore, particularly those of us stuck in the Windows world and running Active Directory or MS SQL Server? That is an area where Veeam excels.

We'll probably give it a try soon. We even have a full license that is still in use while we wrap up our migration from Hyper-V to XCP-ng which we were keeping for a few other specialty use cases. We still plan to use XOA for most backups, especially the Linux VMs, as long as we can get the immutability issues we're facing fixed.

@olivierlambert
Any updates on this? We're using Backblaze buckets with compliance turned on at the bucket level, but we keep getting failures once the retention period expires and it starts to remove the old backup chains.

We tried setting 28 days of retention at the bucket level, 42 in XenOrchestra, and are running a full backup every 2 weeks. I have a ticket open with support but so far a resolution hasn't been found.