From Download file check: Upload a proper file within the size limit and accepted format. Also check with large file, improper file format.

Raw device usage also improves failover time in case the database is large, because during failover the operating system does not have to do a file check to the file system (FSCK).

The function of file check is very important in the archives management, it can improve the file management work standardization, and guide us to do the seismic archives work better.