HP Storage Mirroring Software - Manual (Page 574)

Verification Page 573 of 677
7. If you are remirroring your files, you can specify Only if Source file is newer than
Target copy so that only files that are newer on the source than on the target are
remirrored.
Note: If you are using a database application, do not use the newer option unless
you know for certain you need it. With database applications, it is critical
that all files, not just some of them that might be newer, get mirrored.
8. Specify if you want the verification process to Use block checksum
comparison/delta block transfer to determine which blocks are different. If this
option is enabled, only those blocks (not the entire files) that are different will be
identified in the log and remirrored to the target.
Note: Database applications may update files without changing the date, time, or
file size. Therefore, if you are using database applications, you should use
the block checksum comparison to ensure proper verification and
remirroring.
9. Click OK to save the settings.