Client object replication between a first backup server and a second backup server

A system for backing up objects from a client implemented in at least one computing device, comprising:

• a first backup server;
• a second backup server;
• a client;
• wherein the first backup server performs operations, the operations comprising:
• backing-up objects from the client;
• generating metadata on the objects from the client;
• transmitting the metadata to the second backup server, wherein the objects backed-up at the first backup server are not copied to the second backup server;
• wherein the client performs operations, the operations comprising:
• determining that the first backup server is unavailable after transmitting the metadata;
• using the metadata at the second backup server to determine modifications to the objects at the client since the metadata was last generated in response to determining that the first backup server is unavailable;
• and
• backing-up the determined modifications to the objects to the second backup server to backup.

A method for backing up objects, comprising:

• backing-up objects from a client to a first backup server;
• generating, by the first backup server, metadata on the objects from the client;
• transmitting, by the first backup server, the metadata to a second backup server, wherein the objects backed-up at the first backup server are not copied to the second backup server;
• determining that the first backup server is unavailable after transmitting the metadata;
• using the metadata at the second backup server to determine modifications to the objects at the client since the metadata was last generated in response to determining that the first backup server is unavailable;
• and
• backing-up, by the client, the determined modifications to the objects to the second backup server to backup.