Resource Performance Monitoring

ZStack Cube Virtualization Edition provides visual charts that display resource performance monitoring data over a period of time, helping administrators understand compute, storage, and network utilization trends and evaluate resource health.

Monitoring Chart Types

Chart Type	Description
Bar Chart	Displays capacity usage data as proportional bars, helping administrators quickly understand resource capacity information.
Line Chart	Displays resource performance metrics as line charts, helping administrators observe metric trends over time.

Monitoring Data Collection Methods

ZStack Cube Virtualization Edition provides Basic Monitoring and Advanced Monitoring for VMs. Advanced Monitoring usually provides more accurate memory data.

Basic Monitoring: Monitoring data is obtained from the host through Libvirt.
Advanced Monitoring: Monitoring data is obtained from inside the VM by the Advanced Monitoring Agent. VMTools must be installed in the VM before Advanced Monitoring can be used.

Monitoring Data Collection Intervals

ZStack Cube Virtualization Edition uses real-time monitoring. Resource monitoring charts refresh data every 10 seconds by default.

View Monitoring Charts

ZStack Cube Virtualization Edition supports viewing resource utilization metrics through line charts.

Procedure

In the navigation pane, choose Inventory.
Select the resource object to view, such as a VM, host, cluster, image storage, data storage, or distributed port group.
On the resource details page, click Monitoring.
Select the metrics to display as needed.
Select or customize the time range as needed.
Select one or more monitoring objects as needed.

Customize Monitoring Charts

Administrators can adjust the time range, metrics, monitoring objects, and chart position displayed in monitoring charts.

View data point details.
Hover over a chart to view details about the corresponding data point.
Adjust the time range.
By default, monitoring data from the last 15 minutes is displayed. Valid values include 15 minutes, 1 hour, 6 hours, 1 day, 1 week, 1 month, 1 year, and a custom time range.
Select metrics.
Select the metrics to focus on based on service requirements.
Select monitoring objects.
Display data for all monitoring objects or for specified monitoring objects.
Adjust chart positions.
Drag monitoring charts to change their display order.

Metrics Reference

Supported metrics vary by resource object. The following table lists common resource objects and metrics.

Object	Metric	Item and Description
Cluster	CPU, memory, disk, NIC	CPU utilization sum, memory usage percentage, disk IOPS sum (read/write), and NIC data transfer rate sum (send/receive).
Host	CPU	CPU Utilization: The proportion of time the CPU is in a non-idle state. CPU Idle Rate: The proportion of time the CPU is in an idle state. CPU Occupancy Rate (System Process): The proportion of time the CPU spends in kernel space for operations such as memory allocation, I/O operations, and child process creation. CPU Occupancy Rate (User Process): The proportion of time the CPU spends in user space for programs such as shells, databases, and web servers. CPU Occupancy Rate Average (Waiting): The proportion of time the CPU spends waiting for the hard disk drive to load data into memory after initiating a read or write operation.
Host	Memory	Memory Usage: The amount of used and free resource memory.
Host	Disk	Disk Speed: The read and write speed of the resource disk. Disk IOPS: The read and write IOPS of the resource disk. Disk Latency: The latency of the resource disk. Total Disk Usage Ratio: The percentage of used capacity across all host disks. Total Disk Usage: The amount of used capacity across all host disks. Disk Usage Ratio of Platform System Files: The percentage of disk capacity occupied by platform system files. Disk Usage of Platform System Files: The amount of disk capacity occupied by platform system files.
Host	LUN	LUN Speed: Read/Write: The current read and write throughput of the LUN. LUN IOPS: Read/Write: The number of read and write I/O operations completed by the LUN per second. LUN Latency: The I/O response latency of the LUN.
Host	NIC	NIC Data Transfer Rate: The current send and receive rate of the resource NIC. NIC Packet Rate: The current send and receive packet rate of the resource NIC. NIC Packet Discard Rate: The current packet drop rate for outgoing and incoming packets on the resource NIC.
VM	CPU	CPU Utilization: The proportion of time the CPU is in a non-idle state. CPU Idle Rate: The proportion of time the CPU is in an idle state. CPU Occupancy Rate (System Process): The proportion of time the CPU spends in kernel space. CPU Occupancy Rate (User Process): The proportion of time the CPU spends in user space. CPU Occupancy Rate Average (Waiting): The proportion of time the CPU spends waiting for disk I/O.
VM	Memory	Memory Usage: The amount of used and free resource memory. Available Memory Capacity: The available amount of resource memory that can be used. Free Memory Capacity: The amount of free resource memory. Total Memory Capacity: The total amount of resource memory. Memory Idle Rate: The percentage of resource memory currently in an idle state. Memory Utilization: The percentage of resource memory currently in use.
VM	Disk	Disk Speed: The read and write speed of the resource disk. Disk IOPS: The read and write IOPS of the resource disk. Disk Utilization: The percentage of used capacity on the resource disk. Disk Idle Rate: The percentage of idle capacity on the resource disk. Disk Usage Capacity: The amount of used capacity on the resource disk. Disk Idle Capacity: The amount of free capacity on the resource disk.
VM	NIC	NIC Data Transfer Rate: The current send and receive rate of the resource NIC. NIC Packet Rate: The current send and receive packet rate of the resource NIC. NIC Packet Discard Rate: The current packet drop rate for outgoing and incoming packets on the resource NIC.
Data Storage	Capacity	Capacity Percent Used: The percentage of capacity currently used by the resource.
Standalone Image Storage/Distributed Image Storage	Capacity	Capacity Percent Used: The percentage of capacity currently used by the resource.
Standalone Image Storage	CPU, disk, memory, NIC	CPU Utilization: The proportion of time the CPU is in a non-idle state. CPU Idle Rate: The proportion of time the CPU is in an idle state. CPU Occupancy Rate (System Process): The proportion of time the CPU spends in kernel space, performing typical operations such as memory allocation, I/O operations, and creating child processes. CPU Occupancy Rate (User Process): The proportion of time the CPU spends in user space, running typical user-space programs such as shells, databases, and web servers. CPU Occupancy Rate Average (Waiting): The proportion of time the CPU spends waiting for the hard disk drive to load data into memory after initiating a read or write operation. Disk Speed: The read and write speed of the resource disk. Disk IOPS: The read and write IOPS of the resource disk. Memory Usage: The amount of used and free resource memory. NIC Data Transfer Rate: The current send and receive rate of the resource NIC. NIC Packet Rate: The current send and receive packet rate of the resource NIC. NIC Packet Discard Rate: The current packet drop rate for outgoing and incoming packets on the resource NIC.
Distributed Port Group	IP	Used IP Percentage (IPv4): The percentage of IPv4 addresses currently used by the resource. Available IP Percentage (IPv4): The percentage of remaining available IPv4 addresses on the resource.

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