On Tue, Mar 08, 2022 at 06:46:58AM +0800, David Dal Ben wrote: > This is where I get out of my depth. I added the drives to unraid, it > asked if I wanted to format them, I said yes, when that was completed > I started migrating data. > > I didn't enter any XFS or disk commands from the CLI. Is there any sort of verbose logging you can turn on from the applicance web interface? > > What I can tell you is that there are a couple of others who have > reported this alert on the Unraid forums, all seem to have larger > disks, over 14tb. I'd suggest that you ask Unraid to turn off XFS shrinking support in the 6.10 release. It's not ready for production release, and enabling it is just going to lead to user problems like this. Indeed, this somewhat implies that Unraid haven't actually tested shrink functionality at all, because otherwise the would have noticed just how limited the current XFS shrink support is and understood that it simply cannot be used in a production environment yet. IOWs, if Unraid want to support shrink in their commercial products right now, their support engineers need to be testing, triaging and reporting shrink problems to upstream and telling us exactly what is triggering those issues. Whilst the operations and commands they are issuing remains hidden from Unraid users, there's not a huge amount we can do upstream to triage the issue... Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx
