Comment 1 for bug 1393369

Currently disk partition strategy for mongo is:

"min" for os - /
"all" for mongo - /var/lib/mongo

we can add another partition, log - /var/log, with "min" allocator - 60 gb, or "all" allocator,
in case of all - space between mongo and log will be splitted
also note that it is important not to add /var partition, because we install os on a plain partition in case of ubuntu