On a MySQL cluster, does it make sense to store MySQL database files and binlogs in different partitions?
(This is about partitions on the same physical disk. If they were on different physical disks, the answer would be yes -- so to allow parallel reads and writes.)
One could think that by separating datadir and binlog dir on different partitions, if one gets filled up the other continues to have free space. But actually this doesn't matter as any of these two events would stop the replication or the MySQL server altogether. On the other hand, a single partition for datadir and binlogs would allow them to share the available free space and therefore give them more room for expansion.
For this reason it doesn't seem there's any particular drawback in sharing a partition, while there may be some advantages. Is there something else to take into consideration?