capacity     operations    bandwidth
pool        alloc   free   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
ost0         456K  29.0T      0      6  47.6K   173K
ost0        83.0G  28.9T      0  1.61K  17.1K  1.56G
ost0         180G  28.8T      0  1.63K  29.9K  1.59G
ost0         278G  28.7T      0  1.62K  39.5K  1.58G
ost0         375G  28.6T      0  1.62K    32K  1.58G
ost0         472G  28.5T      0  1.62K  36.3K  1.58G