SVS200 (T1618-96004, December 2008)

1 Overview of Data Integrity Check

Function overview

Data Integrity Check insures validity and protects Oracle data stored on the array. Data Integ rity Check

has the following two purposes (see Figure 1):

• Preventing invalid da ta from being written to the a rray

When data is stored on the d isk 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 a rray.

If the data is invalid, D ata Integrity Check prevents the invalid Oracle data from being written.

Consequently, it provides high data reliability and increases data m ana gement efﬁciency by reducing

costs and saving the time and resources required for the recovery of invalid O racle data.

• Protecting existing data in the subsystem

Once O racle data is stored on the disk array, Data Integrity Check protects the data fro m 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 Chec k overview

Figure

2 shows the D a ta Integ rity Check co mponents and their functions for Oracle data check. For

requi

rements (such as product name or versions), refer to Data Integrity Check Operating Environments

and Prerequisites.

HP StorageWorks Data Integrity Check XP user guide for the XP120 00/XP10000/SVS200