HPE Storage Users Group

I ran into a problem: the data storage network was filled by 98%, I deleted the virtual volume, but the space in the shared space was not freed up. I used "tuning", but it also did not help.
What could be the problem?

Try to compact cpg.

I second the compactcpg recommendation.

After you get past the critical capacity emergency, you may want to invest some time to learn about and audit your setup's use of thin reclamation and t10 unmap features. The skill/knowledge is applicable VMware and all storage arrays from early 3PAR on up through the most modern Alletra MP block storage and even some non-HPE storage.