RS:PRIMARY> rs.status()
{
	"set" : "RS",
	"date" : ISODate("2012-11-30T01:22:15Z"),
	"myState" : 1,
	"members" : [
		{
			"_id" : 0,
			"name" : "primary.rs.local:27017",
			"health" : 1,
			"state" : 1,
			"stateStr" : "PRIMARY",
			"uptime" : 4322154,
			"optime" : Timestamp(1354238383000, 1),
			"optimeDate" : ISODate("2012-11-30T01:19:43Z"),
			"self" : true
		},
		{
			"_id" : 1,
			"name" : "secondary.rs.local:27017",
			"health" : 1,
			"state" : 2,
			"stateStr" : "SECONDARY",
			"uptime" : 12060,
			"optime" : Timestamp(1354238383000, 1),
			"optimeDate" : ISODate("2012-11-30T01:19:43Z"),
			"lastHeartbeat" : ISODate("2012-11-30T01:22:13Z"),
			"pingMs" : 0
		},
		{
			"_id" : 2,
			"name" : "tertiary.rs.local:27017",
			"health" : 1,
			"state" : 7,
			"stateStr" : "ARBITER",
			"uptime" : 1319,
			"lastHeartbeat" : ISODate("2012-11-30T01:22:14Z"),
			"pingMs" : 0
		}
	],
	"ok" : 1
}
RS:PRIMARY> rs.conf()
{
	"_id" : "RS",
	"version" : 2,
	"members" : [
		{
			"_id" : 0,
			"host" : "primary.rs.local:27017",
			"priority" : 20,
			"tags" : {
				"dc" : "ny",
				"important" : "A"
			}
		},
		{
			"_id" : 1,
			"host" : "secondary.rs.local:27017",
			"priority" : 10,
			"tags" : {
				"dc" : "sf",
				"important" : "C"
			}
		},
		{
			"_id" : 2,
			"host" : "tertiary.rs.local:27017",
			"arbiterOnly" : true
		}
	],
	"settings" : {
		"getLastErrorModes" : {
			"default" : {
				"important" : 2,
				"dc" : 2
			}
		}
	}
}
RS:PRIMARY> use blogs
switched to db blogs
RS:PRIMARY> db.articles.insert({"title": "hello world"});
RS:PRIMARY> rs.status()
{
	"set" : "RS",
	"date" : ISODate("2012-11-30T01:23:01Z"),
	"myState" : 1,
	"members" : [
		{
			"_id" : 0,
			"name" : "primary.rs.local:27017",
			"health" : 1,
			"state" : 1,
			"stateStr" : "PRIMARY",
			"uptime" : 4322200,
			"optime" : Timestamp(1354238561000, 1),
			"optimeDate" : ISODate("2012-11-30T01:22:41Z"),
			"self" : true
		},
		{
			"_id" : 1,
			"name" : "secondary.rs.local:27017",
			"health" : 1,
			"state" : 2,
			"stateStr" : "SECONDARY",
			"uptime" : 12106,
			"optime" : Timestamp(1354238561000, 1),
			"optimeDate" : ISODate("2012-11-30T01:22:41Z"),
			"lastHeartbeat" : ISODate("2012-11-30T01:22:59Z"),
			"pingMs" : 0
		},
		{
			"_id" : 2,
			"name" : "tertiary.rs.local:27017",
			"health" : 1,
			"state" : 7,
			"stateStr" : "ARBITER",
			"uptime" : 1365,
			"lastHeartbeat" : ISODate("2012-11-30T01:23:00Z"),
			"pingMs" : 0
		}
	],
	"ok" : 1
}
RS:PRIMARY> db.getLastError("default", 500);
timeout
RS:PRIMARY> db.getLastErrorObj("default", 500);
{
	"n" : 0,
	"lastOp" : Timestamp(1354238561000, 1),
	"connectionId" : 62860,
	"wtimeout" : true,
	"waited" : 500,
	"err" : "timeout",
	"ok" : 1
}