Server-side processing can be exceptionally useful in DataTables when dealing with massive data sets, and ColReorder works with this as would be expected. There must be special consideration for the column ordering on the server-side script since the columns can be in an unexpected order. For this the sName parameter of each column must be specified and the server-side script take this into account (the parameter 'sColumns' is a comma separated string of these sName parameters). This is shown in this example.
$(document).ready( function () {
var oTable = $('#example').dataTable( {
"sDom": 'Rlfrtip',
"bProcessing": true,
"bServerSide": true,
"sAjaxSource": "../../examples/examples_support/server_processing_ordering.php",
"aoColumns": [
{ "sName": "engine" },
{ "sName": "browser" },
{ "sName": "platform" },
{ "sName": "version" },
{ "sName": "grade" }
]
} );
} );