The stopBalancer command is not shown in the help
> db.version()
3.0.4
> sh.help()
sh.addShard( host ) server:port OR setname/server:port
sh.enableSharding(dbname) enables sharding on the database dbname
sh.shardCollection(fullName,key,unique) shards the collection
sh.splitFind(fullName,find) splits the chunk that find is in at the median
sh.splitAt(fullName,middle) splits the chunk that middle is in at middle
sh.moveChunk(fullName,find,to) move the chunk where 'find' is to 'to' (name of shard)
sh.setBalancerState( <bool on or not> ) turns the balancer on or off true=on, false=off
sh.getBalancerState() return true if enabled
sh.isBalancerRunning() return true if the balancer has work in progress on any mongos
sh.disableBalancing(coll) disable balancing on one collection
sh.enableBalancing(coll) re-enable balancing on one collection
sh.addShardTag(shard,tag) adds the tag to the shard
sh.removeShardTag(shard,tag) removes the tag from the shard
sh.addTagRange(fullName,min,max,tag) tags the specified range of the given collection
sh.removeTagRange(fullName,min,max,tag) removes the tagged range of the given collection
sh.status() prints a general overview of the cluster
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