## `iostat` collector ```json "iostat": { "exclude_metrics": [ "io_read_ms" ], "exclude_devices": [ "nvme0n1p1", "nvme0n1p2", "md127" ] } ``` The `iostat` collector reads data from `/proc/diskstats` and outputs a handful **node** metrics. If a metric or device is not required, it can be excluded from forwarding it to the sink. Metrics: * `io_reads` * `io_reads_merged` * `io_read_sectors` * `io_read_ms` * `io_writes` * `io_writes_merged` * `io_writes_sectors` * `io_writes_ms` * `io_ioops` * `io_ioops_ms` * `io_ioops_weighted_ms` * `io_discards` * `io_discards_merged` * `io_discards_sectors` * `io_discards_ms` * `io_flushes` * `io_flushes_ms` The device name is added as tag `device`. For more details, see https://www.kernel.org/doc/html/latest/admin-guide/iostats.html