1. Check the monitoring-related data in Alibaba Cloud ECS. Some monitoring charts that do not have data can only be seen after installing the monitoring plug-in. as shown in Figure 1

Figure 1

2. Click the installation plug-in, install the cloud monitoring plug-in, the process of installing the plug-in takes 1-2 minutes, please check later. as shown in Figure 2

Figure 2

3. After waiting for a few minutes, you can already check the usage rate of cloud disk/inode. Click to see more indicators. View disk monitoring metrics. /dev/vda1 is the system disk, and /dev/vdb1 is the data disk. The (agent) disk.usage.used_device-average of disk usage (bytes) means: the average usage of disk usage. /dev/vda1 has already used 11 GB. /dev/vdb1 has been used 17 GB. as shown in Figure 3

Figure 3

4. Check the cloud disk related in Alibaba Cloud ECS, /dev/vda1 is the system disk, the SSD cloud disk, and its size is 20 GB. /dev/vdb1 is a data disk, which is a normal cloud disk, and its size is 40GB. From this, the disk usage is 11 GB / 20 GB = 55%, and 17 GB / 40 GB = 43%. There is no need to expand. as shown in Figure 4

Figure 4