[OmniOS-discuss] Using zpool iostat

[Alexandre NEY]

Hello,

I have a weird issue and i'm wondering if you guys experience the same behavior.

I'm trying to get some simple IOPS statistics of my pool :

SunOS ivi-zfs01 5.11 omnios-b281e50 i86pc i386 i86pc

root at ivi-zfs01:~# zpool iostat
               capacity     operations    bandwidth
pool        alloc   free   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
POOL01      25.8T  32.2T    292    567  32.1M  25.8M
rpool       9.02G   102G      3      6  20.2K  41.4K
----------  -----  -----  -----  -----  -----  -----

All looks good except  that there is no activity on this pool. If i run the same command over and over again the exact same statistics will appear.

If i run 

root at ivi-zfs01:~# zpool iostat 1
               capacity     operations    bandwidth
pool        alloc   free   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
POOL01      25.8T  32.2T    292    567  32.1M  25.8M
rpool       9.02G   102G      3      6  20.2K  41.4K
----------  -----  -----  -----  -----  -----  -----
POOL01      25.8T  32.2T      0      0      0      0
rpool       9.02G   102G      0      0      0      0
----------  -----  -----  -----  -----  -----  -----

The second output reflects reality (no activity)

Any thoughts ?

Thanks !

Alexandre NEY