ZFS Any Way to Find Latency and IO for zfs Dataset or Volumes?

[Senthilnathan]

Hi,

Installed 'fsstat' through sleuthkit package but it is not working as in Solaris.

root@testvm:~ # fsstat zfs
Error stat(ing) image file (raw_open: image "zfs" - No such file or directory)
root@testvm:~ # uname -r
12.0-RC3

Is there any solution to get the latency and IO for the individual zfs datasets ?

 

[t1066]

You may try to modify the following dtrace script.

Sharing of DTrace scripts

I open this topic for people to share their DTrace scripts. So we can perfect our scripts and introduce DTrace to others. You can visit DTrace - FreeBSD Wiki to see how to enable DTrace in FreeBSD and get more information on DTrace. There are already seven example scripts in DTrace/Exmaples -...

forums.freebsd.org

 

[Eric A. Borisch]

Starting in 13.0, or with the ports ZFS version, there will be latency stats available via zpool iostat. One of the benefits of switching to OpenZFS upstream.