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+<!--startmeta
+custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/proc.plugin/integrations/zfs_adaptive_replacement_cache.md"
+meta_yaml: "https://github.com/netdata/netdata/edit/master/collectors/proc.plugin/metadata.yaml"
+sidebar_label: "ZFS Adaptive Replacement Cache"
+learn_status: "Published"
+learn_rel_path: "Data Collection/Linux Systems/Filesystem/ZFS"
+most_popular: False
+message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE"
+endmeta-->
+
+# ZFS Adaptive Replacement Cache
+
+
+<img src="https://netdata.cloud/img/filesystem.svg" width="150"/>
+
+
+Plugin: proc.plugin
+Module: /proc/spl/kstat/zfs/arcstats
+
+<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" />
+
+## Overview
+
+This integration monitors  ZFS Adadptive Replacement Cache (ARC) statistics.
+
+
+
+This collector is supported on all platforms.
+
+This collector supports collecting metrics from multiple instances of this integration, including remote instances.
+
+
+### Default Behavior
+
+#### Auto-Detection
+
+This integration doesn't support auto-detection.
+
+#### Limits
+
+The default configuration for this integration does not impose any limits on data collection.
+
+#### Performance Impact
+
+The default configuration for this integration is not expected to impose a significant performance impact on the system.
+
+
+## Metrics
+
+Metrics grouped by *scope*.
+
+The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.
+
+
+
+### Per ZFS Adaptive Replacement Cache instance
+
+
+
+This scope has no labels.
+
+Metrics:
+
+| Metric | Dimensions | Unit |
+|:------|:----------|:----|
+| zfs.arc_size | arcsz, target, min, max | MiB |
+| zfs.l2_size | actual, size | MiB |
+| zfs.reads | arc, demand, prefetch, metadata, l2 | reads/s |
+| zfs.bytes | read, write | KiB/s |
+| zfs.hits | hits, misses | percentage |
+| zfs.hits_rate | hits, misses | events/s |
+| zfs.dhits | hits, misses | percentage |
+| zfs.dhits_rate | hits, misses | events/s |
+| zfs.phits | hits, misses | percentage |
+| zfs.phits_rate | hits, misses | events/s |
+| zfs.mhits | hits, misses | percentage |
+| zfs.mhits_rate | hits, misses | events/s |
+| zfs.l2hits | hits, misses | percentage |
+| zfs.l2hits_rate | hits, misses | events/s |
+| zfs.list_hits | mfu, mfu_ghost, mru, mru_ghost | hits/s |
+| zfs.arc_size_breakdown | recent, frequent | percentage |
+| zfs.memory_ops | direct, throttled, indirect | operations/s |
+| zfs.important_ops | evict_skip, deleted, mutex_miss, hash_collisions | operations/s |
+| zfs.actual_hits | hits, misses | percentage |
+| zfs.actual_hits_rate | hits, misses | events/s |
+| zfs.demand_data_hits | hits, misses | percentage |
+| zfs.demand_data_hits_rate | hits, misses | events/s |
+| zfs.prefetch_data_hits | hits, misses | percentage |
+| zfs.prefetch_data_hits_rate | hits, misses | events/s |
+| zfs.hash_elements | current, max | elements |
+| zfs.hash_chains | current, max | chains |
+
+
+
+## Alerts
+
+
+The following alerts are available:
+
+| Alert name  | On metric | Description |
+|:------------|:----------|:------------|
+| [ zfs_memory_throttle ](https://github.com/netdata/netdata/blob/master/health/health.d/zfs.conf) | zfs.memory_ops | number of times ZFS had to limit the ARC growth in the last 10 minutes |
+
+
+## Setup
+
+### Prerequisites
+
+No action required.
+
+### Configuration
+
+#### File
+
+There is no configuration file.
+#### Options
+
+
+
+There are no configuration options.
+
+#### Examples
+There are no configuration examples.
+
+