insert huge Blob insert Ms SQL Server

I have a table on Ms SQL Server content a Image field and I cann't ensure
the max size.
I need to get record of the table from the server a and
insert record into the table on server b.
I can insert huge image properly when the server a and the server a at the
same computer, but go wrong when the server a and the server a at the
dinferent computers.the size of image inserted is the max size of set in
TDatabase' param
blob size.
I conference the help about the param and do not know how to open a live
table.