Check VPS resource usage every 15 minutes

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Best for

DevOps automation workflows
intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.emailsend, n8n-nodes-base.ssh, n8n-nodes-base.merge, n8n-nodes-base.if, n8n-nodes-base.stickynote, n8n-nodes-base.scheduletrigger

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Hostinger.

Original n8n.io source

1.1 Workflow description

Title: Check VPS resource usage every 15 minutes
Workflow name: Check VPS resource usage every 15 minutes

This n8n workflow template is designed to help system administrators and DevOps professionals monitor key resource usage metrics — CPU, RAM, and Disk — on a VPS (Virtual Private Server). The workflow automatically checks these resources every 15 minutes and sends an email alert if any resource usage exceeds the 80% threshold. This proactive monitoring helps maintain optimal server performance and prevents resource-related downtimes.

Who This Workflow Is For

• System Administrators managing Linux-based servers who need to ensure their systems are running smoothly without manual monitoring. • DevOps Professionals who manage multiple environments and need automated tools to alert them to potential issues before they affect operations. • IT Support Teams who require an easy way to keep tabs on server health across an organization’s infrastructure.

How It Works

Schedule Trigger: The workflow is triggered every 15 minutes by a Cron node.
Resource Checks: Separate SSH Command nodes are configured to execute specific commands that check the current usage of RAM, Disk, and CPU.
Data Aggregation: The results from each check are merged using a Merge node, which combines the data into a single payload for analysis.
Threshold Analysis: A Function node evaluates whether any resource’s usage exceeds the predefined 80% threshold.
Alerts: If any metric exceeds the threshold, an email alert is sent through an Email node, ensuring that administrators can react promptly to potential issues.

Setup Steps

Configure SSH Nodes: Update each SSH node with the appropriate credentials and target server details where the resource checks will be performed.
Set Thresholds: If different sensitivity levels are required, review and adjust the resource usage thresholds within the Function node.
Email Configuration: Enter the correct email addresses in the Email node for where alerts should be sent. Ensure that your email-sending credentials and server details are correctly configured.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Send Email

Type / Role: n8n-nodes-base.emailSend - emailSend
Config choices: Version 1

Block 2 - Check RAM usage

Type / Role: n8n-nodes-base.ssh - ssh
Config choices: Version 1

Block 3 - Check Disk usage

Type / Role: n8n-nodes-base.ssh - ssh
Config choices: Version 1

Block 4 - Check CPU usage

Type / Role: n8n-nodes-base.ssh - ssh
Config choices: Version 1

Block 5 - Merge check results

Type / Role: n8n-nodes-base.merge - merge
Config choices: Version 3

Block 6 - Check results against thresholds

Type / Role: n8n-nodes-base.if - if
Config choices: Version 1

Block 7 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 8 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 9 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 10 - Schedule Trigger

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.2

3. Summary Table

Workflow	Check VPS resource usage every 15 minutes
Complexity	intermediate
Nodes	10
Categories	DevOps
Author	Hostinger
Published	20 Feb 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/2951/2951.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source DevOps workflows

Frequently asked questions

What does Check VPS resource usage every 15 minutes do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your DevOps use case.

Hostinger

5 workflows

Nodes

n8n-nodes-base.emailsend n8n-nodes-base.ssh n8n-nodes-base.merge n8n-nodes-base.if n8n-nodes-base.stickynote n8n-nodes-base.scheduletrigger

Complexity

intermediate

Published 20 Feb 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/2951/2951.json

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Check VPS resource usage every 15 minutes

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Who This Workflow Is For

How It Works

Setup Steps

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Send Email

Block 2 - Check RAM usage

Block 3 - Check Disk usage

Block 4 - Check CPU usage

Block 5 - Merge check results

Block 6 - Check results against thresholds

Block 7 - Sticky Note1

Block 8 - Sticky Note

Block 9 - Sticky Note2

Block 10 - Schedule Trigger

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions