sh.enableSharding("test")
db.test.ensureIndex({x:1})
sh.shardCollection("test.test", {x:1})

var i = 0;
var a = Array(10000).toString()
for (i = 0; i < 1000; i++) { db.test.insert({x:i, a:a}); }

mongos> sh.status()
--- Sharding Status ---
  sharding version: {
	"_id" : 1,
	"version" : 4,
	"minCompatibleVersion" : 4,
	"currentVersion" : 5,
	"clusterId" : ObjectId("533c6d664fe3c29ccff63fc2")
}
  shards:
	{  "_id" : "config",  "host" : "config/sv.local:30011,sv.local:30012,sv.local:30013" }
	{  "_id" : "shard2",  "host" : "shard2/sv.local:30021,sv.local:30022,sv.local:30023" }
	{  "_id" : "shard3",  "host" : "shard3/sv.local:30031,sv.local:30032,sv.local:30033" }
  databases:
	{  "_id" : "admin",  "partitioned" : false,  "primary" : "config" }
	{  "_id" : "test",  "partitioned" : true,  "primary" : "shard2" }
		test.test
			shard key: { "x" : 1 }
			chunks:
				shard2	4
				shard3	5
			{ "x" : { "$minKey" : 1 } } -->> { "x" : 0 } on : shard2 Timestamp(2, 1)
			{ "x" : 0 } -->> { "x" : 33 } on : shard2 Timestamp(1, 3)
			{ "x" : 33 } -->> { "x" : 111 } on : shard2 Timestamp(3, 0)
			{ "x" : 111 } -->> { "x" : 190 } on : shard2 Timestamp(4, 0)
			{ "x" : 190 } -->> { "x" : 269 } on : shard3 Timestamp(4, 1)
			{ "x" : 269 } -->> { "x" : 347 } on : shard3 Timestamp(2, 8)
			{ "x" : 347 } -->> { "x" : 783 } on : shard3 Timestamp(3, 2)
			{ "x" : 783 } -->> { "x" : 863 } on : shard3 Timestamp(3, 4)
			{ "x" : 863 } -->> { "x" : { "$maxKey" : 1 } } on : shard3 Timestamp(3, 5)

mongos>

2014-04-02T15:34:32.347-0400 [WriteBackListener-sv.local:20001] warning: Monitor not found for a known shard: config