Measures reported by HanaPerMgrStTest

In SAP HANA, Persistence layer is used for handling all operational and transaction data to take secure backup and restoring data incase of corruption or database crash. It provides use of Save point which can be used for restoring data. Persistent storage media are required for ongoing save operations for data and redo log files. To protect data from the risk of memory failure SAP HANA persists in-memory data to storage media and flushes all changed data from memory to the data volumes. This operation takes place on the basis of savepoints which occur by default every 5 minutes.

Persistence manager is the module responsible for low-level operations on the persistent data structures. This test auto-discovers the Persistence Volumes in the target server and reports the rate and time for normal and mass consistent changes. These measures helps administrators to proactively identify and resolve any issues in the data backup and restoration before it affects the server performance.

Outputs of the test: One set of results for each Volume in the target database server being monitored

Descriptor: Volume

The measures made by this test are as follows: