Short Answer - NO! Long answer - thats a good thing. Compellent optimizes (by default) the RAID level per block based on what provides the best performance. So in a default world writes are done in RAID10/DM and then those blocks are converted to RAID5/6 in a 24-48 hour period depending on snapshot schedule. From a read point of view there is no benefit of RAID10 - and so it should be minimized.  You can override per volume this behavior if that default doesnt work. 
Dear all,  Can I specify the capacity of RAID 10 DM and RAID 6-6 disk space in Tier 1 of SCv2020? For Example 20% using for RAId 10 DM and 80% using for RAID 6-6.  Thanks,Natthpahol.  
Can I specify the capacity of RAID 10 DM and RAID 6-6 disk space in Tier 1 of 
SCv2020?