In database mirroring, for "high-safety mode without automatic failover" it is mention that :
"Every transaction committed on the principal database is also committed on the mirror server, guaranteeing protection of the data. This is achieved by waiting to commit a transaction on the principal database, until the principal server receives a message from the mirror server stating that it has hardened the transaction's log to disk."
And it is also mention that:
"When the partners are connected and the database is already synchronized, manual failover is supported. If the mirror server instance goes down, the principal server instance is unaffected and runs exposed (that is without mirroring the data). If the principal server is lost, the mirror is suspended, but service can be forced to the mirror server (with possible data loss). "
So, If the principal server is lost, why service can be forced to the mirror server WITH POSSIBLE DATA LOSS ?
Why with WITH POSSIBLE DATA LOSS ?