Centralized Synology Monitoring

Q: How do I monitor a Synology NAS with PRTG?

Start in DSM: go to Control Panel, Terminal & SNMP, then the SNMP tab. Enable SNMP v2c or v3 (v3 if you want to secure SNMP traffic), set your community string or credentials, and use port 161 by default. Then add the device in PRTG. Auto-discovery handles sensor creation via the Synology device template, so system health, physical disk, and logical disk sensors appear without manual setup.

Q: Which metrics can PRTG collect from Synology DSM?

Out of the box, PRTG collects system health data including CPU load, fan status, temperatures, and power supply. Physical disk tracking runs per drive, giving you temperature and status individually rather than a single aggregate. Logical volumes provide capacity and health status. Memory availability is included as well. Beyond the predefined sensors, you can pull additional OIDs via MIB import, though what is exposed depends on your DSM version and SNMP configuration.

Q: Can PRTG monitor multiple Synology devices from one dashboard?

Yes. All your NAS devices appear in one centralized dashboard. Remote sites behind VPN or on separate networks are covered through PRTG remote probes, and their data lands in the same central view as everything else — no logging into individual DSM interfaces separately.

Q: Does PRTG support SNMP v2c and SNMP v3?

Both are supported. SNMP v3 adds encrypted authentication, which matters if SNMP traffic crosses network segments outside your direct control. The configuration must match on both sides — authentication protocol, privacy protocol, and credentials all need to be consistent between DSM and the PRTG device settings. When v3 sensors return empty data, a credential mismatch is almost always the cause.

Q: Can I use MIB files to monitor additional Synology metrics?

Yes. Import the MIB files into PRTG's MIB importer, then build an SNMP Library Sensor or SNMP Custom Advanced sensor around the OIDs you need. This is mainly relevant when the standard predefined sensors do not surface something specific to your DSM setup or hardware configuration.

Q: What about Synology Surveillance Station monitoring?

PRTG covers the hardware and storage layer underneath Surveillance Station — volume capacity, CPU load under recording workloads, system health, and network throughput are all visible. PRTG does not monitor anything camera-specific, such as stream analysis, motion event data, or the Surveillance Station application layer itself. If recording stops because a volume filled or the system is overloaded, PRTG shows you the underlying cause.

Q: How do notifications work and can I use iOS/Android?

When a sensor crosses a configured threshold, PRTG fires a notification through whichever channels you have set up. Email and SMS are the basics. Push notifications through the iOS and Android apps work well for on-call coverage. Slack and Microsoft Teams are also supported. You can assign different notification methods to different severity levels, so warnings and errors do not necessarily land the same way.

Keep tabs on Synology NAS hardware health, disk space, and system status across every DSM device on your network

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What Is the Best Way to Monitor Multiple Synology NAS Devices from One Place?

Monitoring a single Synology NAS through DSM is straightforward enough. The problem shows up when you have ten, fifty, or two hundred of them spread across sites, subnets, and locations. Logging into each DSM control panel individually to check disk status, volume health, and system temperatures stops being practical fast. What most teams need is a single view that covers all devices without manual polling.

Paessler PRTG connects to Synology DiskStation and RackStation devices via SNMP, collecting system health data, physical disk status, logical volume capacity, and performance metrics across the full fleet. Enable SNMP in DSM, run auto-discovery, and preconfigured sensors appear without manual configuration per device. The same threshold-based alerting applies whether you have one unit at HQ or hundreds at remote sites, with remote probes bringing distributed locations into a single centralized view. Supported protocols include SNMP v2c and v3 for system health, disk, and capacity monitoring, plus Network Share (SMB/CIFS) sensors for backup destination verification and File and Folder sensors for log monitoring.

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Everything You Need to Monitor Synology NAS Across Your Network

Centralized management for Synology NAS devices across multiple sites

With several Synology DSM boxes on different subnets or locations, checking each DSM control panel separately gets slow fast. Hardware and disk problems are easy to miss in the gaps between manual checks. At 20 or 200 Synology devices, you need centralized visibility, not hours of dashboard-hopping every week.

PRTG auto-discovers Synology devices once SNMP is enabled and applies predefined templates so sensors start collecting SNMP metrics right away. One dashboard covers current status, trends, and alerts for all NAS devices. Whether your units are on the same local network or spread across remote sites via VPN, PRTG remote probes bring everything into one view.

What that looks like in practice:

Monitor all Synology NAS devices from one dashboard instead of logging into 10, 50, or 200 separate DSM interfaces
Near real-time visibility into hardware health and disk space across your entire fleet, not just the units you checked last
Push notifications via PRTG's iOS and Android apps for on-call response from anywhere
Consistent monitoring across remote sites via VPN connections using PRTG remote probes
Scales as your Synology product fleet grows, new devices get sensor configuration through templates automatically

Keep Disks Healthy with Continuous Hardware Monitoring

Synology hardware gives you early signals worth acting on. Temperature readings, fan status, physical disk condition, these metrics are available continuously if you're collecting them. PRTG uses SNMP Synology System Health, Physical Disk, and Logical Disk sensors to track hardware and volume status across your devices. Set threshold-based alerts and your team gets notified when conditions shift, with enough lead time to schedule maintenance rather than respond to an outage. Historical data also helps narrow down root causes faster when correlating metrics with performance changes.

Metrics worth tracking for Synology hardware reliability:
CPU load, memory availability, fan status, and power supply health through SNMP Synology System Health
Physical disk temperature and disk status per individual drive. Per-drive granularity matters when identifying which disk in a multi-drive array is actually degrading
Logical volume status and storage pool health for early detection before a volume goes critical
Sensor channels showing exactly which component is in warning or error state, which cuts troubleshooting time considerably

Stay Informed on Volume Health Before It Affects Backups or Recordings

Synology volumes expose their health state through SNMP, and PRTG surfaces that data continuously. The SNMP Synology Logical Disk sensor tracks each volume's operational status and alerts when it enters a Warning or Down condition, including states like Repairing, Syncing, Degrade, or Crashed. Your team knows about the condition at the next scan interval, with time to investigate before backup jobs, snapshots, or recordings are affected.

Alerts when a volume enters a Warning or Down state, including Degrade and Crashed, before a failed backup reveals the problem
Detect volume states like Repairing and Syncing that flag conditions requiring attention
Know which volumes are healthy at a glance across all monitored Synology devices, without logging into DSM manually
Close the gap between a volume problem starting and your team knowing about it, before backup jobs, snapshots, or recordings are affected

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Get Synology NAS monitoring running fast, without Docker or scripting

Grafana-based stacks require Docker containers, SNMP exporters, custom dashboards, and ongoing maintenance. For a lean IT team already handling servers, networks, backups, and user support, that's a real time investment before you see a single metric.

PRTG provides auto-discovery and device templates that create the right sensors for physical disk, logical disk, and system health automatically. Enable SNMP on your Synology units, run auto-discovery, sensors appear. No scripting. If you need additional OIDs beyond the predefined sensors, PRTG supports MIB files and SNMP Library or SNMP Custom sensors. Worth noting that requires correct SNMP and MIB support on the DSM side.

Fast time-to-value for teams that don't have time to waste:
Sensors created automatically via templates after discovery, start monitoring in under an hour instead of days
User-friendly GUI-driven setup vs. Grafana builds that require writing queries and building dashboards from scratch
MIB support for deeper integrations when you need custom metrics beyond the predefined sensors
Consistent rollout across all NAS devices via templates, every unit gets the same sensors and thresholds
No dashboard-building phase required to see system health and capacity metrics after discovery

How PRTG Monitors Synology NAS

PRTG monitors Synology NAS devices through SNMP sensors that collect system health, disk status, and capacity metrics. Each sensor breaks down into individual channels (CPU load, temperature, disk status, and others), giving you granular visibility into DSM device health. Here's what each sensor covers and how to use them.

SNMP Synology System Health

This sensor tracks the overall health of your Synology device: system status, temperature, power supply, fan status, CPU load, and free memory. It's the broadest view of hardware health in a single sensor.

Use it as your first check. If the system status channel shows an error you know to dig deeper using the Physical Disk or Logical Disk sensors. PRTG alerts you when any component crosses the thresholds you configure, so you're not manually polling DSM to find out something went wrong.

SNMP Synology Physical Disk

Also one of the more critical sensors to get right. The Physical Disk sensor monitors each drive installed in your Synology device individually, with disk temperature and disk status tracked per drive as separate channels.

Set temperature thresholds at values that match your hardware, for example warning at 50°C and error at 60°C. When disk status shifts from Normal to Warning or Critical, PRTG notifies you. The per-drive granularity matters specifically in multi-drive setups, where you need to know which disk is degrading rather than just that something is wrong.

SNMP Synology Logical Disk

This sensor monitors individual volumes on your Synology device. Volume health status, total size, and used space are tracked separately per volume, so you know which specific volume is filling up rather than getting a generic "NAS is getting full" signal.

For units running multiple volumes, file shares, backup destinations, Surveillance Station storage, that distinction is worth having. Set capacity thresholds to trigger alerts with enough lead time to expand storage or clean up before services are affected.

MIB-based integrations

If you need OIDs beyond what the standard sensors cover, import Synology MIB files into PRTG and query them using the SNMP Library Sensor or SNMP Custom Advanced sensor. This works for specific DSM features or hardware components the predefined sensors don't reach. Worth noting this depends on MIB and OID availability and correct SNMP exposure in your DSM settings. Not every OID Synology documents is necessarily accessible.

Auto-Discovery

PRTG auto-discovery scans for Synology devices on your network and matches them to predefined device templates, creating System Health, Physical Disk, and Logical Disk sensors without manual configuration per device.

Templates are also customizable. Add a Network Share sensor pointing to a specific backup destination once and every Synology unit discovered after that picks it up automatically. Useful when you need consistent monitoring across a larger fleet without configuring each device individually.

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Manual Monitoring vs. PRTG Synology Monitoring – Why PRTG gives you more than manual DSM checks

Monitoring Task	Manual DSM Dashboard Checks Manual DSM Dashboard Checks	PRTG Network Monitor PRTG Network Monitor
Multi-Device Visibility	Manual DSM Dashboard Checks Log into each DSM individually (10-60+ min/day for 20+ devices)	PRTG Network Monitor Centralized dashboard shows all devices at once (2-5 min/day)
Disk Health Monitoring	Manual DSM Dashboard Checks Check Storage Manager manually per device	PRTG Network Monitor SNMP Synology Physical Disk sensor monitors all disks automatically
Capacity Alerting	Manual DSM Dashboard Checks Manual checks or basic DSM email notifications	PRTG Network Monitor Customizable multi-threshold alerts (warning at 80%, error at 90%)
Mobile Access	Manual DSM Dashboard Checks DSM mobile app (per-device only)	PRTG Network Monitor PRTG iOS/Android apps (all devices, all metrics, push notifications)
Historical Trend Data	Manual DSM Dashboard Checks Limited to DSM Resource Monitor graphs per device	PRTG Network Monitor Historical data across all Synology devices with customizable timeframes
Hardware Health Monitoring	Manual DSM Dashboard Checks Check each device's Control Panel > Info Center manually	PRTG Network Monitor SNMP Synology System Health sensor monitors temperature, fans, power, CPU, memory automatically
Time Investment (Daily Management)	Manual DSM Dashboard Checks High (manual checks across multiple devices)	PRTG Network Monitor Low (alerts only when thresholds are met)

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There are around 20 people within the business across various departments using PRTG who look at the dashboard, but the beauty of it is that we don't really have to look at it. In terms of its day-to-day use, we just let it do its thing, and we just act on alerts when necessary.

Ollie Kerslake, Infrastructure Lead

Riverford Organic Farmers

“Our objective was to be able to monitor the health of our most critical servers containing data and applications, but also the flows and bandwidth between headquarters, our 50 servers in the cloud and the 15 servers at our production sites. For us, it is essential to have a proactive approach to understand where the weaknesses of the IT system are to be able to improve them.”

Marc Boullier, CIO

Carambar & Co

“The tool has given us greater control over all types of devices connected to the network (switches, IP telephony, security cameras, IoT, WiFi) that previously remained opaque when dealing with service incidents. This has improved our ability to diagnose and resolve problems, which has translated into greater efficiency and a better user experience in both internal and public services.”

Jordi Tolosà Bel, New Technologies Technician

Vinaroz City Council

Paessler PRTG Network Monitor licenses & pricing

Choose the PRTG Network Monitor subscription that's best for you.

License Name	Price	License Details	Get started	Pricing Details
PRTG 500	^$200	per month paid annually	Buy now Buy now	Enough to monitor multiple aspects of 50 devices
PRTG 1000	^$358	per month paid annually	Buy now Buy now	Enough to monitor multiple aspects of 100 devices
PRTG 2500	^$742	per month paid annually	Buy now Buy now	Enough to monitor multiple aspects of 250 devices
PRTG 5000	^$1,300	per month paid annually	Buy now Buy now	Enough to monitor multiple aspects of 500 devices
PRTG 10000	^$1,642	per month paid annually	Buy now Buy now	Enough to monitor multiple aspects of 1000 devices

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Synology NAS Monitoring: Frequently Asked Questions

How do I monitor a Synology NAS with PRTG?

Start in DSM. Control Panel, Terminal & SNMP, then the SNMP tab. Enable v2c or v3 there (v3 if you care about securing SNMP traffic), set your community string or credentials, port 161 by default. Then add the device in PRTG. Auto-discovery handles sensor creation via the Synology device template, so system health, physical disk, and logical disk sensors appear without manual setup. That's roughly it.

Which metrics can PRTG collect from Synology DSM?

Quite a bit out of the box. System health covers CPU load, fan status, temperatures, and power supply. Physical disk tracking runs per drive, so you get temperature and status individually rather than a single aggregate. Logical volumes give you capacity and health status. Memory availability is in there too.

Beyond the predefined sensors you can pull additional OIDs via MIB import, though what's actually exposed depends on your DSM version and how SNMP is configured on that specific unit.

Can PRTG monitor multiple Synology devices from one dashboard?

That's the main point of running PRTG for this. All your NAS devices show up in one place. Remote sites behind VPN or on separate networks get covered through PRTG remote probes, and their data lands in the same central view as everything else. You're not logging into anything separately.

Does PRTG support SNMP v2c and SNMP v3?

Both work. V3 adds encrypted authentication, which matters if SNMP traffic crosses segments outside your direct control. The configuration has to match on both sides though. Authentication protocol, privacy protocol, credentials, all of it needs to be consistent between DSM and the PRTG device settings. When v3 sensors come back empty, a credential mismatch is almost always why.

Can I use MIB files to monitor additional Synology metrics?

Yes, though it's a few more steps. Import the MIB files into PRTG's MIB importer, then build an SNMP Library Sensor or SNMP Custom Advanced sensor around the OIDs you need. Mostly relevant when the standard sensors don't surface something specific to your DSM setup or hardware configuration.

What about Synology Surveillance Station monitoring?

PRTG covers the hardware and storage layer underneath it. So volume capacity, CPU load under recording workloads, system health, network throughput, those are all visible. What PRTG doesn't touch is anything camera-specific. No stream analysis, no motion event data, nothing from the Surveillance Station application layer itself. If recording stops because a volume filled or the system is overloaded, PRTG shows you the cause. What triggered the camera-side issue is a different question.

How do notifications work and can I use iOS/Android?

When a sensor crosses a threshold PRTG fires a notification through whichever channel you've configured. Email and SMS are the basics. Push notifications through the iOS and Android apps work well for on-call coverage since you don't need to be in front of anything. Slack and Microsoft Teams are also supported if your team routes alerts there. You can assign different methods to different severity levels, so warnings and errors don't necessarily land the same way.

Does PRTG replace Synology Active Insight?

No, and the overlap is smaller than it looks. Active Insight is Synology's own service, cloud-based, built around DSM-specific health data and events. PRTG is on your infrastructure side and covers the broader environment: the NAS alongside your network devices, servers, and applications. Monitoring data stays local, thresholds are yours to set, and it fits into whatever alerting or workflow setup you already have. Running both makes sense if you want Synology-native visibility through Active Insight and unified infrastructure monitoring through PRTG.