You're in a similar situation to me

Hi Kike, Nothing unusual here, deleted block (and VM)  are kept by default for 30 days or regarding snapshots, Do you have snapshots ? Think to clear all your snapshot if you want to recover freed space. 

All the snapshots are deleted, and it's been more than 10 days, but the capacity seems to be around 1tb. What should I check?

Are there any shapots left at data protection? 

That's right. I asked the customer to understand and just use it because there was room for data capacity

I don't see anything unusual here, deleted blocks (and VMs) are kept for 30 days by default. In terms of snapshots, have you taken any snapshots? When recovering freed space, think about clearing all your snapshots. 
 

Thank you to all of you who answered to solve the problem