Home > Data Protection > PowerProtect DD Series Appliances > Dell PowerProtect Data Domain DD9410 and DD9910 > File system recoverability
Though every effort is made to ensure that no file system issues occur, the PowerProtect Appliance Data Invulnerability Architecture anticipates that some system might have a problem at some time. Therefore, the architecture includes features to reconstruct lost or corrupted file system metadata, and file system check tools that can bring an ailing system back online safely and quickly.