When you click [Start Performance] in Storage System Management GUI window, an instruction to obtain performance information is issued to the performance management unit, and the performance management unit obtains performance information of the device through the LAN and saves it as performance data. Since the performance management unit is started as a daemon of the Express manager server, the unit continues obtaining performance information while the Express manager server is active, even if no Storage System Management GUI window is displayed.
The logical configuration of the storage device is recognized, and the obtaining of performance information starts. At the start of obtaining performance information of the selected storage system, an amount of time (tens of seconds to several minutes) is spent to obtain the logical configuration before any performance information is actually obtained.
When performance monitoring starts, "Monitoring" is displayed in "Perf.Data" row as a state of the performance monitoring.
The table below lists value of "Perf.Data" row and their corresponding statuses and actions to be taken. The color may differ from that of the current status. Click [Reload Configuration] button on the Storage System Management GUI window to check the latest status.
Value of "Perf.Data" row | Status | Appropriate action |
|---|---|---|
Monitoring | Performance is being monitored. (Normal) | Performance is being monitored. |
Recovering | Performance monitoring is being recovered (e.g. device time-out). | The Express manager server cannot communicate with a device. Check the network status and device status. Log off, when ETERNUS Web GUI is in a login state. |
Error | Performance monitoring is being error (e.g. device time-out, writing to the performance information file failed.) | The Express manager server cannot communicate with a device. Check the network status and device status. Log off, when ETERNUS Web GUI is in a login state. Check the write permission to the file and the capacity of the file system. Then, click [Stop Performance] in Storage System Management GUI window. |
Stop | Performance monitoring has stopped. (Normal) | Performance monitoring has stopped. |
