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8. I/O Statistics

freebsd# zpool iostat
               capacity     operations    bandwidth
pool         used  avail   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
tank        73.5K  1.98G      0      2    119  2.10K
		

freebsd# zpool iostat
               capacity     operations    bandwidth
pool         used  avail   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
tank        73.5K  1.98G      0      2    119  2.10K
freebsd# zpool iostat tank 2
               capacity     operations    bandwidth
pool         used  avail   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
tank        73.5K  1.98G      0      1     84  1.48K
tank        73.5K  1.98G      0      0      0      0
tank        73.5K  1.98G      0      0      0      0
tank        73.5K  1.98G      0      0      0      0
tank        73.5K  1.98G      0      0      0      0
tank        73.5K  1.98G      0      0      0      0
tank        73.5K  1.98G      0      0      0      0
tank        73.5K  1.98G      0      0      0      0
tank        73.5K  1.98G      0      0      0      0
tank        73.5K  1.98G      0      0      0      0
tank        73.5K  1.98G      0      0      0      0
tank        73.5K  1.98G      0      0      0      0
tank        73.5K  1.98G      0      0      0      0
		

8.1. Virtual Device Statistics

freebsd# zpool iostat -v
               capacity     operations    bandwidth
pool         used  avail   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
tank        73.5K  1.98G      0      0     45    824
  mirror    73.5K  1.98G      0      0     45    824
    ad1         -      -      0      0  1.12K  9.04K
    ad3         -      -      0      0    778  9.04K
----------  -----  -----  -----  -----  -----  -----
			
freebsd# zpool iostat -v tank 5
               capacity     operations    bandwidth
pool         used  avail   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
tank         124K  1.98G      0      0     12    367
  mirror     124K  1.98G      0      0     12    367
    ad1         -      -      0      0    297    773
    ad3         -      -      0      0    270    773
----------  -----  -----  -----  -----  -----  -----


               capacity     operations    bandwidth
pool         used  avail   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
tank         124K  1.98G      0      0      0      0
  mirror     124K  1.98G      0      0      0      0
    ad1         -      -      0      0      0      0
    ad3         -      -      0      0      0      0
----------  -----  -----  -----  -----  -----  -----
			
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