eG Monitoring
 

Measures reported by HiVSPBattStTest

The Virtual Storage Platform is designed so that it cannot lose data or configuration information if the power fails. The battery system is designed to provide enough power to completely destage all data in the cache if two consecutive power failures occur and the batteries are fully charged. If the batteries do not contain enough charge to provide sufficient time to destage the cache when a power failure occurs, the cache operates in write through mode. When a power failure occurs and continues for 20 milliseconds or less, the storage system continues normal operation. If the power failure exceeds 20 milliseconds, the storage system uses power from the batteries to back up the cache memory data. If the charge in the batteries is not enough to withstand frequent power failures, then too much of data will be lost resulting in performance degradation of the target Hitachi VSP storage device. To avoid such loss of data, it is necessary for the administrators to monitor the status of the batteries round the clock! The HiVSPBattStTest helps administrators in this regard!

This test reports the current status of the batteries used by each RAID store on the Hitachi VSP storage device.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Battery_status Indicates the current status of the batteries of this RAID store.   The values reported by this measure and its numeric equivalents are mentioned in the table below:

Measure value Numeric Value
noError 1
acuteError 2
seriousError 3
moderateError 4
serviceError 5

Note:

By default, this measure reports the Measure Values listed in the table above to indicate the current state of the batteries of this RAID store. The graph of this measure however, represents the status of a server using the numeric equivalents only - 1 to 5.