capacity     operations    bandwidth
pool        alloc   free   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
ost0         684K  29.0T      0      5  42.2K   160K
ost0        84.8G  28.9T      0  1.61K  13.9K  1.57G
ost0         182G  28.8T      0  1.62K  34.1K  1.58G
ost0         280G  28.7T      0  1.61K  35.2K  1.57G
ost0         367G  28.6T      0  1.62K  34.1K  1.58G
ost0         464G  28.5T      0  1.62K  33.1K  1.57G