zfs-exporter

zfs-exporter is a prometheus exporter for ZFS space usage statistics.

Status

This is a hack I threw together to make my life easier. It will probably break with the next FreeBSD release. I might not maintain it. I guess in theory this might work on Linux with ZFS patches but I haven't tried it.

Usage

Compile the release version with cargo build --release. make install will install the binary and rc file to /usr/local. Enable it with sysrc zfs_exporter_enable=YES, and start it with service zfs-exporter start. See the rc file for configurables.

Metrics

Currently it only exports two metrics, zfs_dataset_space_used and zfs_dataset_space_available. Each one is labeled with pool, which is the pool the dataset belongs to; and dataset, which is the dataset name.