I'm using ZFS on a server with lots of interesting IO, and I already use collectd to collect various interesting metrics. I already know about (and use) the zfs_arc plugin, which gives some of the information I need.

However, I'd like to include the information that I get using (as an example) zpool iostat 10 -vl:

  • How much data is written to my special device?
  • How full is my special device?
  • How much data is written to my cache?
  • How much data is read from my cache?

Is there any way to feed this information into collectd? I'd like to avoid parsing the output of zfs iostat.

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