Save the DB in background. The OK code is immediately returned. Redis forks, the parent continues
to serve the clients, the child saves the DB on disk then exits. A client may be able to check if
the operation succeeded using the LASTSAVE command.
@return ok
Save the DB in background. The OK code is immediately returned. Redis forks, the parent continues to serve the clients, the child saves the DB on disk then exits. A client may be able to check if the operation succeeded using the LASTSAVE command. @return ok