About mnesia in multi-nodes

[钱晓明]

Hi, I create mnesia schema in 2 nodes successfully, and create tables with
disc_copies option. After writing one record into one table, I close all
erlang nodes. Then I restart one node, call mnesia:start(), use tv:start()
to view records in that table, but I see none. If I start 2 nodes, I can see
records. Is there any way I can make sure records wrote all nodes, so I can
start my system when only one node runing?
Thanks!