Lines Matching +full:trim +full:- +full:data +full:- +full:valid
6 stdout. In many ways, this is a metrics-friendly output of
10 When run without arguments, _zpool_influxdb_ runs once, reading data
18 |---|---|---|
19 | --execd | -e | For use with telegraf's `execd` plugin. When [enter] is pressed, the pools are sam…
20 | --no-histogram | -n | Do not print histogram information |
21 | --signed-int | -i | Use signed integer data type (default=unsigned) |
22 | --sum-histogram-buckets | -s | Sum histogram bucket values |
23 | --tags key=value[,key=value...] | -t | Add tags to data points. No tag sanity checking is perform…
24 | --help | -h | Print a short usage message |
27 The histogram data collected by ZFS is stored as independent bucket values.
28 This works well out-of-the-box with an influxdb data source and grafana's
35 Another method for storing histogram data sums the values for lower-value
39 The `zpool_influxdb --sum-histogram-buckets` option presents the data from ZFS
46 |---|---|---|
47 | zpool_stats | general size and data | zpool list |
49 | zpool_vdev_stats | per-vdev statistics | zpool iostat -q |
50 | zpool_io_size | per-vdev I/O size histogram | zpool iostat -r |
51 | zpool_latency | per-vdev I/O latency histogram | zpool iostat -w |
52 | zpool_vdev_queue | per-vdev instantaneous queue depth | zpool iostat -q |
55 zpool_stats contains top-level summary statistics for the pool.
61 |---|---|
70 |---|---|---|
90 |---|---|
98 |---|---|---|
100 | examined | bytes | total data examined during scan |
102 | pass_examined | bytes | data examined during current scan pass |
105 | processed | bytes | data reconstructed during scan |
121 (https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/ZIO%20Scheduler.html)
129 |---|---|
135 |---|---|---|
149 be useful for observing latency-related issues that are not easily observed
158 |---|---|
166 |---|---|---|
176 | trim | operations | ZIO trim (aka unmap) writes |
181 4KiB write to mirrored pool will show a 4KiB write to the top-level vdev
193 Note: trim I/Os can be larger than 16MiB, but the larger sizes are
198 |---|---|
206 |---|---|---|
212 | trim_write_ind | blocks | independent trim (aka unmap) writes |
218 | trim_write_agg | blocks | aggregated trim (aka unmap) writes |
221 Telegraf v1.6.2 and later support unsigned 64-bit integers which more
225 available, use the `--signed-int` option.
232 telegraf config-directory (often /etc/telegraf/telegraf.d). Telegraf can
233 be restarted to read the config-directory files.
240 command = ["/usr/libexec/zfs/zpool_influxdb", "--execd"]
243 ## Valid values are:
255 ## Data format to consume.
256 ## Each data format has its own unique set of configuration options, read
286 the Internet. Many attempt to screen-scrape `zpool` output in various
287 ways. The screen-scrape method works poorly for `zpool` output because
288 of its human-friendly nature. Also, they suffer from the same caveats
290 collecting the metrics and is much more efficient than the screen-scrapers.