capacity     operations    bandwidth
pool        alloc   free   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
ost0         632G  35.6T      0    704    913   686M
ost0         632G  35.6T  1.35K     54  1.33G  53.2M
ost0         642G  35.6T  1.52K      9  1.50G  7.53M
ost0         642G  35.6T  1.55K      0  1.53G      0
ost0         642G  35.6T  1.56K      0  1.54G      0
ost0         642G  35.6T  1.55K      0  1.53G      0