capacity     operations    bandwidth
pool        alloc   free   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
ost0         630G  35.6T      0    623    779   607M
ost0         630G  35.6T  1.34K     53  1.33G  52.3M
ost0         642G  35.6T  1.52K      9  1.50G  6.53M
ost0         642G  35.6T  1.55K      0  1.52G      0
ost0         642G  35.6T  1.55K      0  1.53G      0
ost0         642G  35.6T  1.54K      0  1.53G      0