Threshold monitoring is supported for Fibre Channel switch and ETERNUS Disk storage systems.
The threshold monitoring functionality sends an alarm or report when Fibre Channel switch or ETERNUS Disk storage systems performance value reaches a certain level (threshold value) under certain conditions in daily transaction operations.
The advantage of using the threshold monitoring is that the symptom of Fibre Channel switch or ETERNUS Disk storage systems performance drop caused by changes in data processing rates and transaction processing rates can be automatically and reliably detected in daily transaction operations.
The effect that can be expected from the threshold monitoring functionality is that operations in the most suitable environment are enabled. This is accomplished by preventing the adverse effect of performance drops through early detection of bottleneck locations, identification of their causes, and improvement of device configuration.
The threshold monitoring functionality can manage the following information: You can set multiple threshold values.
Fibre Channel switch
Port throughput (%)
A port throughput value (MB/s) is monitored as the percentage (%) of an allowable tolerance to a maximum transfer capability (MB/s).
ETERNUS Disk storage system
Response time (msec) of LogicalVolume (OLU)
Average use (busy) rate (%) of RAIDGroup (RLU, LUN_R)
CM load (CPU usage) rate (%)
Note
The threshold monitoring function is always started when the Management Server is started, and the functionality starts threshold monitoring and obtaining performance information at the same time for a device for which performance management is specified. Accordingly, performance information is obtained and thresholds are monitored regardless of whether the Web Console is started or not. To end threshold monitoring, stop threshold monitoring from this software.
For the CM load (CPU usage) rate, the ROE usage rate is not monitored.
