晚点写。

Monitoring disk I/O graphically in a Linux can be achieved using several tools and methods. Here are some popular options:

2. Grafana and Prometheus

For more advanced and customizable monitoring, you can use Grafana in combination with Prometheus.

Step-by-Step Setup:

Install Prometheus and Node Exporter:
1. Prometheus:
- Follow the instructions on the Prometheus website to install Prometheus on your Proxmox server or another monitoring server.
2. Node Exporter:
- Install Node Exporter on each PVE node to collect metrics:
sh wget https://github.com/prometheus/node_exporter/releases/download/v1.3.1/node_exporter-1.3.1.linux-amd64.tar.gz tar xvfz node_exporter-1.3.1.linux-amd64.tar.gz cd node_exporter-1.3.1.linux-amd64 ./node_exporter &

Configure Prometheus:
1. Edit the Prometheus Configuration:
- Add your PVE nodes to the Prometheus configuration file (prometheus.yml):
yaml scrape_configs: - job_name: 'node_exporter' static_configs: - targets: ['<PVE_NODE1_IP>:9100', '<PVE_NODE2_IP>:9100']

Install Grafana:
1. Follow the Instructions on the Grafana Website to Install Grafana.

Add Prometheus as a Data Source in Grafana:
1. Navigate to Grafana Web Interface:
- Open your web browser and navigate to your Grafana server’s IP address or hostname.
2. Add Data Source:
- Go to Configuration > Data Sources > Add data source > Prometheus.
- Enter the URL of your Prometheus server (e.g., http://<PROMETHEUS_SERVER_IP>:9090).

Create Dashboards:
1. Import or Create Dashboards:
- You can create your own dashboards or import pre-made ones from the Grafana community. For disk I/O monitoring, you can look for dashboards that include Node Exporter metrics.

3. Glances with Web Interface

Glances is a cross-platform monitoring tool with a web interface.

Install Glances:
1. Install Glances and its Web Interface:
sh apt-get install glances pip install glances[all]

Run Glances Web Interface:
1. Start Glances in Web Mode:
sh glances -w
2. Access the Web Interface:
- Open your web browser and navigate to http://<PVE_NODE_IP>:61208.

4. Netdata

Netdata is a powerful, real-time monitoring tool that provides a comprehensive web interface.

Install Netdata:
1. Follow the Instructions on the Netdata Website to Install Netdata.

Access Netdata Web Interface:
1. Open Your Web Browser and Navigate to http://<PVE_NODE_IP>:19999.

Netdata provides detailed, real-time graphs of various system metrics, including disk I/O.

By using these tools, you can effectively monitor disk I/O and other system metrics in a graphical interface, helping you to maintain and troubleshoot your Proxmox environment.