We have deleted some of the partionons of some tables in cassandra database. But after the delete space was not recliamed becuase of size-tiered compaction . Manualy compacted tables with -s options. we have cluster of having 2 data ceneters and each with 6 nodes, we ran compaction both the DC's of all nodes. But Disk usage on DC1 reduced but 6% increase on the other DC2. So please let me know the reason for this and also suggest me on the next steps 2 bring down the usage of disk on Dc2. for your information even load on both DC's are come down.
Even cleared old snapshots of arounf 1.3TB on all nodes