Thanks, Oleg. Are you saying thin-provisioning and deduplication are no longer recommended?
Or is that just for my particular setup? In which case, what is it about the setup that means these nice features are not recommended?

I note that the new build 12146 has now been released.

Can I just install the update to apply the fix, or do I need to recreate the storage devices?

Thanks, Kevin. Much appreciated. I saw your other post and am hopeful this will also be fixed in the next build, as per Oleg's last message. My workaround was to destroy the Replication Partner, stop the StarWind service then delete the entire folder. I then re-created the Replica and let it sync al...

Any news on the new build? I have a new problem now. The management console reports that Allocated Physical Space for one of my HA devices is 260GB but disk space consumed is actually 838GB. There are 1658 .spspx files in the folder. My other HA device is even worse. Allocated Physical Space is 116....

I ran FlushCacheAll.ps1 and then restarted the StarWind service on both nodes. This has made a positive difference, they are now both showing only 52% fragmentation.

Thank you for investigating the problem and for coming up with a fix. Do you know when the next build is likely to be available?

Thanks for that, Oleg.

It doesn't seem to apply to my setup though: the device is now 175% fragmented on one node and 183% on the other!

Also, I don't see any defragmentation options in the context menu of the device. Are they hidden for HA devices?

Thanks for confirming, Boris.

When is the automatic defragmentation done?

Right now, I have a HA device that is 65% fragmented on one node and 62% on the other.

Is it possible to manually trigger defragmentation?

I've seen that this might be done using the context menu of a device in Management Console, but it doesn't seem to be an option for HA devices.