Buyer’s Guide - August 2026

The 10 best disk health and S.M.A.R.T. monitoring tools

Q: Which S.M.A.R.T. attributes actually predict drive failure?

The most cited predictors are reallocated sector count, pending sectors, uncorrectable errors, and temperature; power-on hours indicate age. Manufacturer thresholds are often set so high they only confirm a drive that has already failed, which is why tools like Scrutiny blend in real-world failure-rate data. For NVMe, watch percentage used (endurance), critical warning flags, and media errors.

Q: Can I monitor S.M.A.R.T. on NVMe drives?

Yes. smartctl supports NVMe, and Netdata, Zabbix, Checkmk, Scrutiny, and smartctl_exporter all read NVMe health data. NVMe attributes differ from SATA: there is no spin-up time or seek error rate; instead you track percentage used, critical warning, and media errors. Some tools need extra packages (nvme-cli) or capabilities (SYS_ADMIN in containers) for NVMe access.

Q: What is the difference between smartctl and smartd?

smartctl is an on-demand command-line tool for reading S.M.A.R.T. data and running self-tests. smartd is a daemon that monitors drives continuously and can alert by email or script. Most monitoring platforms - Netdata, Zabbix, Checkmk, Scrutiny, and the Prometheus exporters - call smartctl under the hood, so smartmontools is effectively the engine of the whole category.

Q: Do I need a dedicated disk health tool or can my monitoring platform do it?

General platforms with native S.M.A.R.T. support (Netdata, Zabbix, Checkmk) cover disk health plus the rest of the stack. Dedicated tools (Scrutiny, smartmontools) go deeper on S.M.A.R.T.-specific features like self-tests and failure-rate thresholds but lack broader metrics. Before assuming coverage, verify the platform actually reads S.M.A.R.T. attributes - many only monitor disk space and I/O.

Q: How often should S.M.A.R.T. data be collected?

S.M.A.R.T. attributes change slowly, so minute-level or even daily polling is common; Scrutiny’s collector defaults to daily. Disk I/O and latency metrics change every second and are better monitored at per-second resolution, which is Netdata’s default. S.M.A.R.T. self-tests are typically scheduled weekly (short) or monthly (long) rather than run continuously.

Q: Can monitoring tools run S.M.A.R.T. self-tests?

smartctl and smartd can initiate short, long, and conveyance self-tests, and Scrutiny surfaces test results. Most monitoring platforms, including Netdata, only read S.M.A.R.T. data and do not initiate self-tests - you schedule those with smartd or smartctl. Self-test results (passed/failed) are a useful signal that platforms like Zabbix expose as triggers.

Q: How do I monitor disk health on Windows versus Linux?

Linux and BSD rely on smartctl-based collection; most tools need smartmontools installed and the agent granted access to run smartctl. Windows options include WMI-based sensors (PRTG) and smartctl-based agents (Netdata, Zabbix, HetrixTools). Containerized deployments need device passthrough and SYS_RAWIO (plus SYS_ADMIN for NVMe) so the container can query drive S.M.A.R.T. data.

Disk space charts do not warn you a drive is dying. S.M.A.R.T. telemetry - temperature, reallocated sectors, wear counters, error rates - does. This guide ranks ten tools that read drive health data across fleets of servers, graded on attribute depth, failure alerting, collection resolution, fleet scalability, and what the bill looks like as you grow.

Start with Netdata (free) Jump to rankings

The 10 best disk health and S.M.A.R.T. monitoring tools product interface

Why this list exists

Disk health monitoring is not disk space monitoring, and it is not disk I/O monitoring. It reads S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) telemetry that drives report about themselves: temperature, reallocated sector counts, pending sectors, wear and endurance counters, media errors. The point is to replace a drive before it takes your data with it, not after.

The mistake buyers make is treating S.M.A.R.T. as a checkbox. Many platforms that claim storage monitoring only surface filesystem usage and throughput. Real drive health coverage needs smartctl integration, per-attribute thresholds, and often a privileged path to query devices. Single-machine desktop utilities like CrystalDiskInfo are out of scope here; this guide covers tools that monitor fleets.

Three dimensions decide the outcome:

Attribute depth. Does the tool expose raw and normalized S.M.A.R.T. values for SATA, SAS, and NVMe drives, including drives behind RAID controllers - or just a pass/fail bit?
Alerting quality. Are there real thresholds and anomaly detection on failing attributes, or do you get an attribute dump and a prayer? Manufacturer thresholds are often set so high they only confirm a drive that already failed.
Cost shape at fleet scale. Per-node, per-sensor, per-device, and per-service models behave very differently when you go from 10 servers to 500.

We do not quote competitor list prices in this guide. List prices for this category are negotiated, tiered, and frequently stale within months, and quoting them would tell you less than the pricing shape does. Each card links the vendor’s official pricing page so you can check current numbers yourself. For hands-on setup detail, our operator runbooks for smartctl disk monitoring walk through collection and alerting end to end.

The shortlist was assembled from vendor documentation, collector and plugin source, community operator reports, and hands-on evaluation of the collection path each tool uses. Every tool here either ships a native S.M.A.R.T. collector or has a documented, maintained integration - tools that only monitor disk space were excluded.

S.M.A.R.T. depth and alerting quality carry the most weight because they are where tools in this category actually differ. Real-time resolution matters less for S.M.A.R.T. attributes themselves, which change slowly, but matters a great deal for the disk I/O and latency metrics around them. Deployment and pricing shape are weighted heavily because this is a category where a per-sensor or per-device bill can quietly triple as a fleet grows.

Tester credit

Compiled by the Netdata team - Updated August 12, 2026

Sources verified

Scoring criteria

S.M.A.R.T. depth and coverage 25%
Native vs plugin-based collection, attribute exposure, SATA/SAS/NVMe and RAID support
Alerting and failure prediction 20%
Thresholds, anomaly detection, and use of real-world failure-rate data
Real-time resolution 15%
Per-second metrics versus minute-level or daily polling
Fleet scalability and multi-host management 15%
Auto-discovery, central dashboards, pricing model behavior at scale
Deployment and operational cost 15%
Self-hosted vs SaaS, agent requirements, how the bill grows
Breadth beyond disk health 10%
Disk space, disk I/O, and the rest of the stack in the same tool

Vendor 01 / 10 · #netdata

Netdata

Real-time infrastructure monitoring with a native S.M.A.R.T. collector, per-second disk I/O metrics, built-in alerting, and ML anomaly detection in a single agent.

Best for

SREs and sysadmins who want disk health plus full-stack metrics (CPU, memory, network, disk I/O) in one per-second view
Fleets where per-node pricing with unlimited metrics beats per-GB ingestion or per-sensor bills
Teams that want ML-assisted anomaly detection on top of raw S.M.A.R.T. counters

Pricing

Per-node pricing: Cloud Business starts at $4.50/node/month billed annually, with the per-node price decreasing as node count grows
Free Cloud tier (Community) for small fleets, capped by connected node count
Agent is open source (AGPL) and free to run; you operate it yourself
Paid plans include unlimited metrics, logs, users, and retention - no per-GB or per-metric charges

Pros

Native S.M.A.R.T. collector (go.d.plugin smartctl module) reads device status, temperature, power-on time, power cycles, error rates, and per-attribute raw and normalized values on Linux, BSD, Windows, and macOS
Collects S.M.A.R.T. data via the ndsudo privileged helper rather than executing smartctl directly, so no sudo rules for the agent
Per-second disk I/O, utilization, saturation, and latency metrics sit alongside S.M.A.R.T. health data in the same dashboard
Built-in alerting with configurable thresholds on temperature and error counters, plus ML-based anomaly detection on disk metrics
Documented to hold 1-second granularity at scale up to 100,000+ nodes
Covers disk space, I/O, and the rest of the stack, so disk health is not an island

Where teams pair it

S.M.A.R.T. device polling defaults to every 300 seconds, so attribute changes are not captured at the per-second granularity Netdata applies to other metrics
The S.M.A.R.T. integration ships with no default alerts - you configure temperature and error-counter thresholds yourself
Netdata reads S.M.A.R.T. data but does not initiate self-tests; pair it with smartd to schedule short and long tests

Verdict

Netdata is the only tool in this list that combines a native S.M.A.R.T. collector with per-second disk I/O, latency, and space metrics, built-in alerting, and ML anomaly detection in one agent. It reads S.M.A.R.T. attributes without sudo hacks, runs on Linux, BSD, Windows, and macOS, and scales from a single node to 100,000+ while keeping 1-second resolution on the metrics that change fast. Per-node pricing with unlimited metrics means the bill does not grow with attribute count. The honest caveats: S.M.A.R.T. polling runs on a 5-minute cadence by default, alerts are not preconfigured, and self-tests stay with smartd. For most fleets, that is the right division of labor.

Start free ->

Vendor 02 / 10 · #smartmontools

smartmontools (smartctl + smartd)

The open-source S.M.A.R.T. command-line toolkit that is the de facto standard for reading drive health data and scheduling self-tests.

Best for

Anyone who needs raw S.M.A.R.T. attribute access and scriptable checks on Linux, Windows, macOS, and BSD
Teams building their own monitoring stack who want the underlying engine rather than a dashboard

Pricing

Open source, self-hosted (GPLv2) - you run and operate it
No license fees; the cost is your own engineering time for configuration, alerting, and dashboards

Pros

smartctl reads attributes, health status, and error logs for ATA/SATA, SCSI/SAS, and NVMe drives; smartd monitors continuously and alerts by email or script
Runs S.M.A.R.T. self-tests (short, long, conveyance) - the reference implementation for drive testing
Actively maintained (v7.5 released April 2025) with a large drive database covering RAID controllers and USB bridges
The engine underneath most of this list: Netdata, Zabbix, Scrutiny, and Prometheus exporters all call smartctl

Cons

No web UI or dashboards - output is CLI and email; visualization is on you
No historical trend storage; smartd checks current values but records no attribute history
Alerting is basic email/script hooks with no ML or correlation
Manual per-host configuration with no fleet-wide management console

Verdict

Everything else on this page is, in some sense, a wrapper around smartmontools. It has the deepest attribute access, the only real self-test control, and runs everywhere. What it lacks is everything above the collection layer: no UI, no history, no fleet view, no modern alerting. Rank it this high because if you understand smartctl and smartd, you understand the category. Just expect to pair it with something that stores and visualizes the data.

Visit smartmontools.org -> smartmontools site ->

Vendor 03 / 10 · #scrutiny

Scrutiny

A self-hosted S.M.A.R.T. dashboard that wraps smartd, tracks historical attribute trends, and applies real-world failure thresholds.

Best for

Homelab and self-hosted users who want a purpose-built S.M.A.R.T. web dashboard with history
NAS and RAID owners who want failure-rate-informed thresholds rather than raw attribute dumps

Pricing

Open source, self-hosted (MIT license) - you run and operate it
Runs as Docker containers (collector, web UI, InfluxDB) or manual install; cost is your own hosting and maintenance

Pros

Web UI focused on critical S.M.A.R.T. metrics with historical trend tracking persisted in InfluxDB
Merges manufacturer S.M.A.R.T. metrics with real-world failure rates for customized thresholds - smarter than raw vendor limits
Auto-detects all connected drives via smartctl –scan, including drives behind supported RAID controllers
Alerting via webhooks, email, Discord, Slack, Telegram, ntfy, and more
Actively maintained (v0.8.4 released February 2026) with all-in-one and hub/spoke collector deployments

Cons

S.M.A.R.T.-only: no CPU, memory, network, or application metrics - you pair it with other tools
Collector runs on a cron schedule (daily by default), so it is not real-time
The project describes itself as work-in-progress with rough edges; Windows support still marked WIP
Requires smartmontools and device passthrough (SYS_RAWIO, plus SYS_ADMIN for NVMe) in Docker

Verdict

Scrutiny is the best purpose-built S.M.A.R.T. dashboard available. Its defining feature is threshold calibration from real-world failure-rate data rather than manufacturer limits, which catches dying drives that vendor thresholds wave through. It is disk-only and batch-oriented - daily collection by default - so it complements an infrastructure monitor rather than replacing one. For a NAS or homelab where drives are the crown jewels, that pairing is hard to beat.

Visit the Scrutiny project -> Scrutiny on GitHub ->

Vendor 04 / 10 · #zabbix

Zabbix

Enterprise open-source monitoring platform with an official agent 2 S.M.A.R.T. plugin that discovers disks and monitors attributes without external scripts.

Best for

Enterprises that want a self-hosted, no-license-fee platform with deep customization
Teams already standardized on Zabbix who want disk health as one template among hundreds

Pricing

Open source, self-hosted - no license fee (core GPLv2)
Optional support subscriptions (Essential/Gold/Platinum) priced per year in fixed tiers, with no per-device charges
Cost grows with the infrastructure you run it on and the support tier you buy

Pros

Official SMART template for agent 2 collects attributes without external scripts, with low-level discovery of HDD, SSD, and NVMe disks
Covers temperature, power-on hours, reallocated sectors, NVMe percentage used, critical warnings, and media errors
Built-in triggers for failing disks, high temperature, and NVMe endurance (for example, 90% used)
Full-stack platform: network, servers, applications, and custom checks in one system

Cons

SMART collection depends on granting the Zabbix agent sudo rights to run smartctl
Item intervals are typically minutes, not real-time
No built-in failure prediction model - thresholds are rule-based
Setup and template tuning have a learning curve, and the UI is dated next to modern observability tools

Verdict

Zabbix has the strongest first-party S.M.A.R.T. story of the traditional monitoring platforms: an official plugin, auto-discovery, and sensible default triggers including NVMe endurance. If your organization already runs Zabbix, enabling the SMART template is close to free. The trade-offs are the usual Zabbix ones - configuration effort, minute-level polling, sudo for smartctl - and no failure prediction beyond your own rules.

Read full Netdata vs Zabbix -> Zabbix pricing ->

Vendor 05 / 10 · #prometheus-grafana

Prometheus + Grafana (smartctl_exporter)

The open-source metrics stack: smartctl_exporter wraps smartctl output into Prometheus metrics, visualized in Grafana dashboards.

Best for

Teams already running Prometheus + Grafana who want S.M.A.R.T. data as another exporter
SREs who prefer to build and own their dashboards and alerting rules

Pricing

Open source, self-hosted: Prometheus, node_exporter, smartctl_exporter, and Grafana are all open source projects you run and operate yourself
Grafana Cloud is usage-based: a free tier capped by metric series, log volume, and retention; paid plans bill per ingested metric series and volume
Cost grows with metric cardinality, retention, and the infrastructure you run the stack on

Pros

smartctl_exporter (prometheus-community) exposes S.M.A.R.T. attributes, health status, and NVMe data as Prometheus metrics, with community Grafana dashboards available
node_exporter adds disk I/O, filesystem, and host metrics in the same stack
Alertmanager plus Grafana is a battle-tested, fully customizable alerting and visualization layer
Entire stack is open source, with Grafana Cloud as an optional managed path

Cons

You assemble and operate everything yourself: exporter setup, sudo rights for smartctl, scrape configs, dashboards, alert rules
No built-in failure prediction or real-world failure-rate thresholds - raw attributes only
Scrape intervals are typically 15-60 seconds, not per-second by default
No out-of-the-box disk-health alerting; you write your own rules

Verdict

If your fleet already speaks Prometheus, adding smartctl_exporter is the natural move and works well. The data quality is whatever smartctl gives you, which is excellent; the analysis layer is whatever you build, which is the catch. There is no curated disk-health experience here - no tuned thresholds, no failure-rate modeling, no prebuilt alerts. You are buying flexibility with your own time.

Read full Netdata vs Prometheus -> Grafana Cloud pricing ->

Vendor 06 / 10 · #checkmk

Checkmk

IT monitoring platform with native S.M.A.R.T. checks (smart_stats and smart_nvme_stats) for HDD and NVMe health via its agent.

Best for

Mid-size IT teams that want agent-based monitoring with a polished UI and commercial support
Organizations that prefer per-service pricing over per-host or per-GB models

Pricing

Community edition is open source and self-hosted; commercial subscriptions (Pro/Ultimate) are priced per monitored service count
Free tier capped by service count; cost grows with the number of monitored services, not hosts
SaaS (Checkmk Cloud) also available with subscription pricing

Pros

Native smart_stats and smart_nvme_stats checks monitor HDD error counters and NVMe health via the Checkmk agent
Checks go critical when S.M.A.R.T. counters increase between inventories - simple, effective failure detection
Full-stack monitoring with auto-discovery, dashboards, and alerting in one product
Community edition is open source; commercial editions add support and enterprise features

Cons

smart_stats works only for drives reporting Temperature_Celsius via smartctl -A; NVMe needs the separate smart_nvme_stats check
SMART checks rely on the agent plugin and smartctl being present on the host
Free and commercial editions are capped by service counts, so large fleets need paid subscriptions
Checks run on agent intervals, not in real time

Verdict

Checkmk’s counter-increase detection is a pragmatic approach to drive failure: watch for S.M.A.R.T. error counters that grow between inventories and alert. It is less flashy than failure-rate modeling but catches the failures that matter. As a general platform it is polished and well supported. The per-service pricing model deserves scrutiny at fleet scale, since every disk check counts toward the cap.

Read full Netdata vs Checkmk -> Checkmk pricing ->

Vendor 07 / 10 · #prtg

PRTG Network Monitor

Paessler’s Windows-centric monitoring suite that reads disk health via WMI-based HDD Health and Disk Health sensors.

Best for

Windows-centric IT teams that want a sensor-based, low-configuration monitoring tool
Small-to-mid businesses that like the free tier and per-sensor scaling

Pricing

Licensed per sensor count in fixed tiers, annual subscription or perpetual
Free edition capped at a limited sensor count; cost grows as you add sensors
On-premise Windows server; hosted option available

Pros

WMI HDD Health sensor monitors IDE/SATA disk health via S.M.A.R.T.; WMI Disk Health sensor covers physical disks on Windows
Sensor model makes adding disk checks point-and-click with device auto-discovery
Also monitors disk space, I/O, and storage pools; Redfish sensors cover server virtual disks
Free edition for small setups with a broad third-party sensor ecosystem

Cons

S.M.A.R.T. monitoring is Windows/WMI-centric; Linux disk health coverage is weaker and often needs custom sensors or scripts
Per-sensor licensing means every disk attribute check consumes sensors - costs grow with fleet size
No failure-rate thresholds or historical S.M.A.R.T. trend analysis
Core product requires an on-prem Windows server

Verdict

PRTG is the easy button for Windows shops: auto-discovery finds the hardware, the WMI sensors read S.M.A.R.T. status, and nothing needs a command line. The limits are structural. Linux S.M.A.R.T. coverage is thin, the sensor licensing model punishes attribute-level monitoring at scale, and there is no deeper analysis than sensor thresholds. Fine for a Windows SMB fleet; the wrong tool for a Linux-heavy server estate.

Read full Netdata vs PRTG -> PRTG pricing ->

Vendor 08 / 10 · #hetrixtools

HetrixTools

Cloud-based uptime and server monitoring with a Drive Health Monitor that collects HDD/SSD/NVMe S.M.A.R.T. data through a lightweight agent.

Best for

Small teams and solo admins who want a hosted, no-infrastructure option with a generous free tier
Users who want uptime, blacklist, and server health (including disk health) in one SaaS dashboard

Pricing

Free tier (free for life) capped by number of uptime/server monitors; paid plans billed monthly per monitor count
Drive Health Monitor is included in the Uptime Monitor service; cost grows with the number of monitors and servers

Pros

Drive Health Monitor collects HDD/SSD/NVMe health and wearout stats via the server monitoring agent
Included free in the Uptime Monitor service, and the free tier is free for life
Agent supports Linux, Windows, and macOS with 20+ alert integrations
SaaS with no servers to run; combines uptime, blacklist, and server metrics

Cons

S.M.A.R.T. data is a dashboard feature, not a deep analysis tool - no failure-rate modeling or historical trend analysis
Free tier is capped by monitor count; disk health across many servers pushes you to paid plans
The agent does not install smartmontools for you - you provision it (and nvme-cli for NVMe) on each server
Less depth than dedicated S.M.A.R.T. tools for drive-level diagnostics

Verdict

HetrixTools is the pragmatic hosted pick for small fleets: install the agent, install smartmontools, and drive health shows up in a dashboard you did not have to build. The free tier is genuinely usable for a handful of servers. What you give up is depth - no trend analysis, no calibrated thresholds, no self-test management. Think of it as a smoke alarm, not a fire lab.

Read full Netdata vs HetrixTools -> HetrixTools pricing ->

Vendor 09 / 10 · #manageengine-opmanager

ManageEngine OpManager

Network and server monitoring platform that tracks hard drive health via S.M.A.R.T. attributes with device templates and alarm-based alerting.

Best for

IT operations teams already using ManageEngine that want hardware health within a broader NMS
Mid-size enterprises that prefer per-device perpetual licensing

Pricing

Perpetual licenses priced per device count in fixed tiers, plus annual maintenance
Free edition for small environments; cost grows with the number of monitored devices

Pros

Hard drive monitor tracks S.M.A.R.T. health attributes with 12,000+ device templates for drive identification
Alarms on drive failures with email/SMS notification and escalation rules
Disk space monitoring with growth trend prediction and 230+ dashboard widgets
Perpetual licensing with a free edition for small setups

Cons

S.M.A.R.T. monitoring is a feature of a broad NMS, not a deep disk-health tool - no failure-rate thresholds or self-test management
Per-device licensing makes fleet-wide disk monitoring expensive at scale
Windows-centric management console with agent-based monitoring on servers
S.M.A.R.T. attribute depth is shallower than smartctl-based tools

Verdict

OpManager covers disk health the way a network management system covers everything: adequately, inside a much larger product. If your organization already pays for ManageEngine, enabling drive monitoring is a sensible incremental win. As a disk health purchase on its own merits, it is hard to justify - the S.M.A.R.T. depth is shallower than smartctl-based tools and per-device pricing compounds quickly across a fleet.

Read full Netdata vs ManageEngine -> OpManager editions ->

Vendor 10 / 10 · #nagios

Nagios (Core + XI)

The classic open-source monitoring platform where S.M.A.R.T. disk health is handled by community plugins like check_smart.

Best for

Long-time Nagios shops that want to extend existing monitoring with S.M.A.R.T. checks
Teams comfortable with plugin-based, configuration-file-driven monitoring

Pricing

Nagios Core is open source, self-hosted - no license fee
Nagios XI is commercial, licensed per node count, with a free tier capped by node count
Cost grows with the number of monitored nodes

Pros

check_smart plugins (Napsty/check_smart, sbraz/check_smart) monitor S.M.A.R.T. health and attributes of HDD, SSD, and NVMe drives
Nagios Core is open source (GPLv2) with 25+ years of ecosystem and thousands of plugins
Nagios XI adds a web UI, dashboards, and reporting on top of Core
Active/passive check model scales to large fleets

Cons

S.M.A.R.T. monitoring depends on third-party community plugins - no first-party integration
Configuration-file-driven setup has a steep learning curve with no disk auto-discovery out of the box
Nagios XI per-node licensing gets expensive for large fleets
No built-in historical S.M.A.R.T. trend analysis or failure prediction

Verdict

Nagios can monitor drive health, and shops that already run it should - the check_smart plugins are mature and cover NVMe. But nothing about the experience is first-party: you find the plugin, wire up the config, and maintain it yourself. In 2026, teams starting fresh have options with native collectors, auto-discovery, and actual dashboards. Nagios ranks last not because it fails, but because everything above it asks less of you.

Read full Netdata vs Nagios -> Nagios pricing ->

Frequently Asked Questions

What is S.M.A.R.T. and why should I monitor it?

S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is built into most HDDs, SSDs, and NVMe drives and reports health telemetry such as temperature, reallocated sectors, power-on hours, and error counters. Monitoring it gives early warning of drive failure so you can replace the drive and restore from backup before data loss. Note that NVMe drives expose different attributes (percentage used, critical warning, media errors) than SATA drives.

Which S.M.A.R.T. attributes actually predict drive failure?

Can I monitor S.M.A.R.T. on NVMe drives?

What is the difference between smartctl and smartd?

Do I need a dedicated disk health tool or can my monitoring platform do it?

How often should S.M.A.R.T. data be collected?

Can monitoring tools run S.M.A.R.T. self-tests?

What does disk health monitoring cost?

Open-source self-hosted tools (smartmontools, Scrutiny, Zabbix, Prometheus/Grafana) have no license fee but you pay to run and operate them. Commercial models vary: per-node (Netdata, Nagios XI), per-sensor (PRTG), per-device (ManageEngine), per-service (Checkmk), or usage-based (Grafana Cloud). Netdata’s Cloud Business starts at $4.50/node/month billed annually, with a free Cloud tier for small fleets and unlimited metrics on paid plans. We do not quote competitor list prices here because they change; check each vendor’s pricing page.

How do I monitor disk health on Windows versus Linux?

The 10 best disk health and S.M.A.R.T. monitoring tools

How we evaluated disk health monitoring tools

Netdata

smartmontools (smartctl + smartd)

Scrutiny

Zabbix

Prometheus + Grafana (smartctl_exporter)

Checkmk

PRTG Network Monitor

HetrixTools

ManageEngine OpManager

Nagios (Core + XI)

Frequently Asked Questions

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