Dave Russell

> NAS has 4 GB of memory. > > Btrfs Data Deduplication is enabled. > > Tiny Btrfs Data Deduplication is enabled. I'm wondering how "Btrfs Data Deduplication" got enabled...

It is looking like it's a an issue with virtual disks. Xpenology, proxmox and virtual disks are all beyond my level of knowledge.

It sounds like the system automatically updated the drive database before starting the data scrub. Running syno_hdd_db with the -n option should have prevented DSM from being able to update...

> Is there any reason that it would disable compatibility on just the expansion units? Maybe the data scan was scanning the expansion unit drives first. I've seen cases where,...

I didn't realise that Inifiniband expansion units show up in DSM as eSATA devices. Give me a few hours and I'll add the RX1214 and other old inifiniband expansion units...

I've released a new version, v3.0.14, that supports the RX1214. https://github.com/007revad/Synology_enable_eunit/releases

Can you tell what the following command returns: ``` sudo syno_slot_mapping ```

Okay. So now I'll have a look at the syno_hdd_db script to see why it's not finding your RX1214 Does the following commands find the RX1214? ``` sudo syno_disk_data_collector record...

Do you have any drives in the RX1214?

Have you rebooted since you ran Synology_enable_eunit?