I called Dell support and resolved the problem by pruning using ssh commands. There was nothing I could do from Storage Manager. We are also going to upgrade the firmware of the storage because they told me that the newer handles the space balancing better.
Hi, I have an SC3000 storage with only one tier with 7K disks. There are 2 raid levels in tier 1, raid 10-DM and raid 6-10. I want to assign some volumes to use only raid 6-10, so I created a custom storage profile and I assigned two volumes to this profile. The problem is that the allocated space for 10-DM is 35TB and for 6-10 only 1TB. So, 6-10 is full and there is no option to un-allocate space from 10-DM in order to be allocated in 6-10. Do I miss something ? [IMAGE]  
SC3000 raid levels in one tier