HP StorageWorks XP Remote Web Console Software - Manual (Page 9)

Data Integrity Check XP for the XP12000/XP10000/SVS200 user guide 9
1 Overview of Data Integrity Check
Function Overview
Data Integrity Check insures validity and protects Oracle data stored on the array. Data Integrity
Check has the following two purposes (see
Figure 1 ):
• Preventing invalid data from being written to the array
When data is stored on the disk array, the data is transferred through many paths and can become
invalid. Data Integrity Check ensures that the Oracle data is valid before it is written to the disk
array. If the data is invalid, Data Integrity Check prevents the invalid Oracle data from being
written. Consequently, it provides high data reliability and increases data management efficiency by
reducing costs and saving the time and resources required for the recovery of invalid Oracle data.
• Protecting existing data in the subsystem
Once Oracle data is stored on the disk array, Data Integrity Check protects the data from being
deleted or updated by mistake. This is accomplished by checking the data to be stored on the same
volume. If data created in another application is being written to a volume where Oracle data is
stored, an error is generated.
Figure 1 Data Integrity Check overview