capacity     operations    bandwidth
pool        alloc   free   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
ost0         144G  32.4T     88  1.01K   356K   215M
ost0         144G  32.4T    873      0   845M      0
ost0         144G  32.4T    666      0   642M      0