SOLVED I'm wondering what my hdd is doing?

[devnullius]

To be able to use zfs send | zfs receive, I first need to make snapshots. I wasn't doing that and I couldn't find a run-once option for it so I set it as follows, about an hour ago:

Once it started, my 3 disks have been running non-stop though no new snapshots are being made:

I'm a bit perplexed now... What is the NAS doing with my disks? It just contains 'raw' data (and now snapshots too). No services are running otherwise. Usually, these disks don't even blink :)

 

[devnullius]

Small update: now 1 hours, 20 minutes along I do notice new snapshots were made... I guess I'll have to keep it running?

 

[devnullius]

Well seems like I spoke to soon - it really still was hard at work. All is done and quiet now. That took a long time. I think I basicly made a full copy of all my original data, like a classic full backup?