To fix a full data mount you would run :
1. Stop all VDP services (dpnctl stop)
2. Unmount the mount point (umount /data0X)
3. Run xfs_check (xfs_check /dev/sdxy)
4. Mount data0X (mount -a)
5. start services (dpnctl start all)
6. stop maintenance services (dpnctl stop maint)
7. avmaint checkpoint --ava (create checkpoint)
8. Run full hfscheck (avmaint hfscheck --full --ava) <--- This will force the check and is more in the context of the OP's question.
8b. check hfscheck (avmaint hfscheckstatus --ava)
9. Start maint (dpnctl start maint)