Monitor Synology with New Relic

Linux (Upstart) Infrastructure Agent Install

October 17, 2021 · 4 mins read

Monitoring Synology DSM Infrastructure

Synology DSM is a custom build of Linux using Upstart. Follow the tarball assisted install for the New Relic Infrastructure Agent on Synology to start monitoring Synology devices without Docker.

In this example, I use a Synology DS214play device (32-bit Intel Processor) with DSM 6.2 installed.

Summary for Intel Atom Devices

Start by enabling SSH on your Synology device:

  1. Control Panel
  2. Terminal & SNMP
  3. Terminal > Enable SSH Service > Apply

Synology Screenshot 1

Next, open your terminal and enter ssh user@synology. You may get an error message saying your home directory does not exist and will start at the root directory /.

  1. Download New Relic Infrastructure Agent. In this case, my Synology DS214play uses an Intel Atom CE5335 processor which is 32-bit only (ARM and ARM64 variants of the New Relic Infrastructure agent are also available here):
    sudo curl --output newrelic-infra_linux_1.20.4_386.tar.gz

  2. Extract:
    sudo tar -xf newrelic-infra_linux_1.20.4_386.tar.gz

  3. Append your New Relic license key (or edit in vi):
    echo "license_key=\"a1b2c3d4e5f6g6h7i7j8k9l0m9n8o7p6q5r4NRAL\"" | sudo tee -a /etc/newrelic-infra/

  4. Run installer script:
    sudo /etc/newrelic-infra/

  5. Check if service is running:
    sudo initctl status newrelic-infra

  6. If service is not running, try restarting:
    sudo initctl restart newrelic-infra

Synology Screenshot 2

Infrastructure Data Captured

  1. System
    • CPU %
    • Load Average
    • Memory Free %
  2. Network
    • Transmit Bytes per Second
    • Receive Bytes per Second
    • Errors per Second
  3. Processes: Not reported by default.
    • To enable, echo "enable_process_metrics: true" | sudo tee -a /etc/newrelic-infra.yml and restart service
  4. Storage:
    • Disk Used %
    • Total Utilization %
    • Read/Write Bytes per Second
  5. Events

New Relic Screenshot 1


Here are some useful dashboards and their NRQL query. New Relic Screenshot 2


SELECT average(cpuPercent), min(cpuPercent), max(cpuPercent) FROM SystemSample WHERE entityName = 'DATACRUNCH' timeseries

Average Load

SELECT average(loadAverageFifteenMinute), average(loadAverageFiveMinute), average(loadAverageOneMinute) FROM SystemSample WHERE entityName = 'DATACRUNCH' TIMESERIES

Memory % Free

SELECT average(memoryUsedBytes), average(memoryCachedBytes), average(memorySharedBytes), average(memorySlabBytes) FROM SystemSample WHERE entityName = 'DATACRUNCH' TIMESERIES

Disk % Usage

SELECT average(diskUsedPercent) FROM StorageSample WHERE entityName = 'DATACRUNCH' FACET entityAndMountPoint TIMESERIES

Disk I/O

SELECT average(readWriteBytesPerSecond OR readBytesPerSecond+writeBytesPerSecond) FROM StorageSample WHERE hostname = 'DATACRUNCH' FACET entityAndMountPoint TIMESERIES

Network I/O

SELECT average(transmitBytesPerSecond), average(receiveBytesPerSecond), average(receiveErrorsPerSecond) FROM NetworkSample WHERE entityName = 'DATACRUNCH' TIMESERIES


SELECT changedPath, summary, changeType, source FROM InfrastructureEvent WHERE entityName = 'DATACRUNCH' SINCE 72 HOURS AGO


SELECT max(cpuPercent) FROM ProcessSample WHERE entityName = 'DATACRUNCH' AND processDisplayName != 'newrelic-infra' FACET processDisplayName TIMESERIES

New Relic Screenshot 32

Cost Summary

After enabling the infrastructure agent for 2 days, only 100 MB of data was ingested per day. This works out to about 3GB per month ingested, far below the 100GB included in the free-tier account.