capacity     operations    bandwidth
pool        alloc   free   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
ost0         912K  32.5T      0      3      0  10.6K
ost0        91.7G  32.4T      0  1.57K    819  1.52G
ost0         203G  32.3T      0  1.57K  2.40K  1.53G
ost0         302G  32.2T      0  1.59K  1.74K  1.55G
ost0         402G  32.1T      0  1.57K  3.13K  1.53G
ost0         513G  32.0T      0  1.57K  2.81K  1.53G