PS C:MongoDBbin> .mongod.exe --storageEngine "wiredTiger"
2015-09-02T15:07:41.266+0100 I CONTROL  Hotfix KB2731284 or later update is not installed, will zero-out data files
2015-09-02T15:07:41.270+0100 E NETWORK  [initandlisten] listen(): bind() failed errno:10048 Only one usage of each socke
t address (protocol/network address/port) is normally permitted. for socket: 0.0.0.0:27017
2015-09-02T15:07:41.271+0100 I STORAGE  [initandlisten] exception in initAndListen: 29 Data directory C:datadb not fo
und., terminating
2015-09-02T15:07:41.271+0100 I CONTROL  [initandlisten] dbexit:  rc: 100
PS C:MongoDBbin> .mongod.exe --storageEngine "wiredTiger" --dbpath C:MongoDBdatawt
2015-09-02T15:10:38.844+0100 I CONTROL  Hotfix KB2731284 or later update is not installed, will zero-out data files
2015-09-02T15:10:38.847+0100 E NETWORK  [initandlisten] listen(): bind() failed errno:10048 Only one usage of each socke
t address (protocol/network address/port) is normally permitted. for socket: 0.0.0.0:27017
2015-09-02T15:10:38.848+0100 I STORAGE  [initandlisten] wiredtiger_open config: create,cache_size=7G,session_max=20000,e
viction=(threads_max=4),statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(c
lose_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),
2015-09-02T15:10:39.055+0100 I CONTROL  [initandlisten] MongoDB starting : pid=24296 port=27017 dbpath=C:MongoDBdataw
t 64-bit host=WSX-111-9999
2015-09-02T15:10:39.055+0100 I CONTROL  [initandlisten] targetMinOS: Windows 7/Windows Server 2008 R2
2015-09-02T15:10:39.055+0100 I CONTROL  [initandlisten] db version v3.0.6
2015-09-02T15:10:39.055+0100 I CONTROL  [initandlisten] git version: 1ef45a23a4c5e3480ac919b28afcba3c615488f2
2015-09-02T15:10:39.055+0100 I CONTROL  [initandlisten] build info: windows sys.getwindowsversion(major=6, minor=1, buil
d=7601, platform=2, service_pack='Service Pack 1') BOOST_LIB_VERSION=1_49
2015-09-02T15:10:39.055+0100 I CONTROL  [initandlisten] allocator: tcmalloc
2015-09-02T15:10:39.055+0100 I CONTROL  [initandlisten] options: { storage: { dbPath: "C:MongoDBdatawt", engine: "wir
edTiger" } }
2015-09-02T15:10:39.057+0100 I CONTROL  [initandlisten] now exiting
2015-09-02T15:10:39.057+0100 I NETWORK  [initandlisten] shutdown: going to close listening sockets...
2015-09-02T15:10:39.057+0100 I NETWORK  [initandlisten] shutdown: going to flush diaglog...
2015-09-02T15:10:39.057+0100 I NETWORK  [initandlisten] shutdown: going to close sockets...
2015-09-02T15:10:39.057+0100 I STORAGE  [initandlisten] WiredTigerKVEngine shutting down
2015-09-02T15:10:39.074+0100 I STORAGE  [initandlisten] shutdown: removing fs lock...
2015-09-02T15:10:39.075+0100 I CONTROL  [initandlisten] dbexit:  rc: 48
PS C:MongoDBbin> .mongo.exe
2015-09-02T15:11:03.091+0100 I CONTROL  Hotfix KB2731284 or later update is not installed, will zero-out data files
MongoDB shell version: 3.0.6
connecting to: test
> db.serverStatus().storageEngine
{ "name" : "mmapv1" }
> exit
bye
PS C:MongoDBbin>

db.serverStatus().storageEngine