Monitoring Service Performance (Applicable to 18000 and 18000F Series)
The storage system-resident performance monitoring function gives an intuitive view of monitored objects' performance. This helps you know the service level requirements of applications, properly adjust the performance goals of the SmartQoS policies, and allocate sufficient resources to mission-critical applications.
Prerequisites
- The storage system has the license file of SystemReporter.
- The communication between the maintenance terminal and the SVP is normal.
Procedure
- Log in to DeviceManager using the SVP.
For details, see Basic Storage Service Configuration Guide for Block specific to your product model.
- Navigate to the SystemReporter interface.
- Click
Monitor in the navigation bar on the right.
The Monitor page is displayed.
- On the Monitor page, click SystemReporter.
The OceanStor SystemReporter interface is displayed.
- Click
- Ensure that the performance monitoring and collection function of the storage device has been enabled.
- Click System in the upper navigation bar.
- Select System Configuration > Registration and Configuration in the navigation bar on the left.
- From the list of registered devices in the function pane, select a device that you want to monitor.
- Check the Collection Switch status of the device that needs to be monitored.
If Collection Switch is OFF, click OFF to enable the performance monitoring and collection function.
- Configure a collection policy.
- In Registration and Configuration, click Collection Policy.
The Collection Policy dialog box is displayed.
- Configure parameters for performance monitoring and collection.Table 2-1 describes the related parameters.Table 2-1 Parameters of a collection policy
Parameter
Description
Value
Real-time monitoring
Real-time data collection interval.
[Value range]
5, 10, 30, or 60, expressed in seconds.
When a storage system is registered, the value of this parameter is the value of Sampling Interval of Real-Time Statistics Collection (s) set in the storage system.
NOTE:If you click Restore Defaults, the value of Real-time monitoring is 5 seconds.
[Example]
5 seconds
Historical monitoring
Historical data collection period.
[Value range]
5 seconds, 1 minute, 2 minutes, 5 minutes, 10 minutes, 30 minutes, or 60 minutes.
When a storage system is registered, the value of this parameter is the value of Sampling Interval of Historical Statistics Collection (s) set in the storage system.
NOTE:If you click Restore Defaults, the value of Trend is 1 minute.
[Example]
1 minute
Current capacity can store approximately
Days for which the remaining space of the disks can store performance data.
NOTE:The value of Historical monitoring affects this parameter because storage space is mainly occupied by historical data.
The parameter value is set by default and cannot be changed.
Save historical monitoring data on the device
- When this parameter is selected, performance monitoring files are saved in the storage system. Every controller of the storage system can save performance monitoring files onto coffer disks. The file path is /OSM/coffer_data/perf/perf_files/. All the files saved by the controllers compose complete performance data. Dump historical performance monitoring files in time because each controller provides only 652.8 MB space to store the files. Files not dumped in time will be overwritten by new files.
NOTE:You can query, delete, and export performance monitoring files using the following CLI commands:
- show performance file
- delete performance file
- export performance file. You can view the exported performance monitoring files using SystemReporter. For details, see the corresponding SystemReporter operation guide.
For details about how to use the commands, see the command reference specific to your product model and version.
- When this parameter is deselected, performance monitoring files are not saved in the storage system. In this case, historical performance data will not be displayed in the trend view of SystemReporter.NOTE:
To facilitate maintenance, it is advised to select this parameter.
[Value range]
Selected or deselected
[Default]
Selected
Automatic stop
If this function is enabled, the performance Collection Switch is turned off automatically when the specified cycle expires.
[Value]
Selected or deselected. If Automatic stop is selected, the automatic stop cycle ranges from 1 to 31 days.
[Example]
Deselected
- Click OK.
The Information dialog box is displayed, indicating that the collection policy is successfully configured.
- Click OK.
- In Registration and Configuration, click Collection Policy.
- Monitor the LUN or file system performance.
- In the upper navigation bar of SystemReporter, click Monitoring.
- In the navigation bar on the left, select the LUN or File System of the corresponding device model.
- In the function pane on the right, click
Real Time.
The real-time monitoring interface is displayed.
- When the monitored object is a LUN, you are advised to view the Block bandwidth or Total IOPS in the function pane on the right.
- When the monitored object is a File System, you are advised to view the Read bandwidth, Write bandwidth, Read IOPS or Write IOPS in the function pane on the right.
Result
Users can know the system resources occupied by the application by viewing the LUN or file system performance. Based on service planning, users can also check that the application performance is below or above the intended goal.
- If the application performance is below the intended goal, users can use the SmartQoS policy to limit the performance of other applications and reserve sufficient resources for this application.
- If the application performance is above the intended goal, users can use the SmartQoS policy to limit the performance of this application and reserve sufficient resources for other applications.