Dell EMC PowerVault MD 34XX/38XX Series Storage Arrays Administrator's Guide

Saving real-time textual performance data

1. In the Array Management Window (AMW), do one of the following:
   • Click the Performance tab, and then click the Launch real-time textual performance monitor link.
   • Select Monitor > Health > Monitor Performance > Real-time performance monitor > View textual.
   The View Real-time Textual Performance Monitor dialog is displayed.
2. To select the objects to monitor and the sampling interval, click the Settings button.
   The Settings button is available only when the real-time textual performance monitor is not started.
   The Performance Summary Settings dialog is displayed.
3. In the Select an object(s) list, select the objects for which you want to view performance data.
   You can select as many objects as you want. Use Ctrl-Click and Shift-Click to select multiple objects. To select all objects, select the Select All check box.
4. In Sampling Interval list, select the sampling interval that you want.
   The sampling interval can be from 5 seconds to 3600 seconds. Select a short sampling interval, such as 5 seconds, for a near-real-time picture of performance; however, be aware that this short sampling interval can affect performance. Select a longer interval, such as 30 seconds to 60 seconds, if you are saving the results to a file to look at later to minimize the system overhead and performance impact.
5. Click OK.
6. To start collecting performance data, click Start.
   Data collection begins.
7. Continue data collection for the desired period of time.
8. To stop collecting performance data, click Stop.
9. To save the performance data, click Save As.
   The Save As button is enabled only when performance monitoring is stopped.
   The Save Performance Statistics dialog is displayed.
10. Select a location, enter a filename, and then click Save.
    You can save the file either as a text file with a default extension of .perf which you can open with any text editor or as a comma separated values file with a default extension of .csv which you can open with any spreadsheet application.
11. To close the dialog, click Close.