capacity     operations    bandwidth
pool        alloc   free   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
ost0         708K  29.0T      0      4  25.6K   104K
ost0        25.0G  29.0T      0    537      0   429M
ost0        48.8G  29.0T      0    566      0   432M
ost0        71.4G  28.9T    229    537   940K   393M
ost0        91.8G  28.9T    309    488  1.25M   352M
ost0         112G  28.9T    212    501   860K   343M