The most basic form of backup happens continuously and automatically, as the redundant LSMS servers contain duplicate hardware, and the standby server replicates the active server’s database.
However, if data becomes corrupted on the active server’s database, because data on the active server’s database is automatically replicated to the standby server, you must also follow more conventional backup procedures so that you can recover from a corrupted database. A database saved to file on the Network Attached Storage (NAS) device is a precaution against database corruption.