Threshold monitoring is supported for Fibre Channel switch and ETERNUS Disk storage systems.
The threshold monitoring function 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 function 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 function 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 (%)
The following information can be added and displayed in event messages related to the threshold monitoring alarms of the ETERNUS DX S5 series, ETERNUS DX8900 S4, and ETERNUS AF S3 series. To add and display the following information, they must be set. Refer to "A.4 perf.conf Parameter" for the setting method.
Additional Information That Can Be Displayed | Remarks |
|---|---|
Volume number (Decimal notation) | - |
Volume name | - |
RAID group number (Decimal notation) | - |
RAID group name | - |
CE number (Decimal notation) | Displayed only for the ETERNUS DX900 S5 and ETERNUS DX8900 S4. |
CE name | Displayed only for the ETERNUS DX900 S5 and ETERNUS DX8900 S4. |
CM number (Decimal notation) | - |
CM name | - |
Note
The threshold monitoring function is always started when the Management Server is started, and the function 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 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.
