步骤：
1.设定归档模式
2.使用备份建立standby数据库
3.设定hadr相关的参数
4.启动并测试
环境： Server： 127.0.0.1 Primary instance: db2inst4 Primary service/port: 42099 Standby instance: db2inst5 Standby service/port: 41099 DB name: SAMPLE --注意，切勿使用与DBM SVCENAME 太接近的端口，因为实例会默认使用那端口之后的连续几个端口，所以应尝试更远一些的端口
1.设定归档模式
--在Primary： --启用归档模式 [db2inst4@localhost instance]$ db2 update db cfg for SAMPLE using LOGRETAIN on DB20000I The UPDATE DATABASE CONFIGURATION command completed successfully. --启用LOGINDEXBUILD，以便日志有关索引的操作 [db2inst4@localhost instance]$ db2 update db cfg for SAMPLE using LOGINDEXBUILD on DB20000I The UPDATE DATABASE CONFIGURATION command completed successfully.
2.使用备份建立standby数据库
--备份primary [db2inst4@localhost arch]$ db2 list db directory System Database Directory Number of entries in the directory = 1 Database 1 entry: Database alias = SAMPLE Database name = SAMPLE Local database directory = /home/db2inst4 Database release level = d.00 Comment = Directory entry type = Indirect Catalog database partition number = 0 Alternate server hostname = Alternate server port number = [db2inst4@localhost arch]$ db2 backup db sample to /arch Backup successful. The timestamp for this backup image is : 20110430101950 [db2inst4@localhost arch]$ ls -atrl total 135208 drwxr-x--- 3 db2inst1 db2iadm1 4096 Dec 8 12:12 db2inst1 drwxr-xr-x 27 root root 4096 Apr 22 23:45 .. drwxrwxrwx 3 root root 4096 Apr 30 10:19 . -rw------- 1 db2inst4 db2iadm1 138297344 Apr 30 10:20 SAMPLE.0.db2inst4.NODE0000.CATN0000.20110430101950.001 --注意修改备份文件属性，以便standby实例能够访问 [db2inst4@localhost arch]$ chmod 777 SAMPLE.0.db2inst4.NODE0000.CATN0000.20110430101950.001 --在standby： [db2inst5@localhost ~]$ db2 restore db sample from /arch/ on /home/db2inst5/ DB20000I The RESTORE DATABASE command completed successfully. [db2inst5@localhost ~]$ db2 list db directory System Database Directory Number of entries in the directory = 1 Database 1 entry: Database alias = SAMPLE Database name = SAMPLE Local database directory = /home/db2inst5 Database release level = d.00 Comment = Directory entry type = Indirect Catalog database partition number = 0 Alternate server hostname = Alternate server port number = --这时候standby的数据库应该是roll-forward pedning的状态，切勿手动roll-forward [db2inst5@localhost ~]$ db2 connect to SAMPLE SQL1117N A connection to or activation of database "SAMPLE" cannot be made because of ROLL-FORWARD PENDING. SQLSTATE=57019
3.设定hadr相关的参数
--在Primary： db2 update db cfg for sample using HADR_LOCAL_HOST 127.0.0.1 db2 update db cfg for sample using HADR_LOCAL_SVC 42099 db2 update db cfg for sample using HADR_REMOTE_HOST 127.0.0.1 db2 update db cfg for sample using HADR_REMOTE_SVC 41099 db2 update db cfg for sample using HADR_REMOTE_INST db2inst5 db2 update db cfg for sample using HADR_SYNCMODE SYNC db2 update db cfg for sample using HADR_TIMEOUT 3 db2 update db cfg for sample using HADR_PEER_WINDOW 120 db2 connect to sample db2 quiesce database immediate force connections db2 unquiesce database db2 connect reset --在Standby： db2 update db cfg for sample using HADR_LOCAL_HOST 127.0.0.1 db2 update db cfg for sample using HADR_LOCAL_SVC 41099 db2 update db cfg for sample using HADR_REMOTE_HOST 127.0.0.1 db2 update db cfg for sample using HADR_REMOTE_SVC 42099 db2 update db cfg for sample using HADR_REMOTE_INST db2inst4 db2 update db cfg for sample using HADR_SYNCMODE SYNC db2 update db cfg for sample using HADR_TIMEOUT 3 db2 update db cfg for sample using HADR_PEER_WINDOW 120
4.启动并测试
--先启动standby --在Standby： [db2inst5@localhost ~]$ db2 start hadr on db sample as standby DB20000I The START HADR ON DATABASE command completed successfully. --这时候应该是remote catchup pending的状态： [db2inst5@localhost ~]$ db2pd -d sample -hadr Database Partition 0 -- Database SAMPLE -- Standby -- Up 0 days 00:03:44 HADR Information: Role State SyncMode HeartBeatsMissed LogGapRunAvg (bytes) Standby RemoteCatchupPending Sync 0 1 ConnectStatus ConnectTime Timeout Disconnected Sat Apr 30 14:09:54 2011 (1304143794) 3 PeerWindowEnd PeerWindow Null (0) 120 LocalHost LocalService 127.0.0.1 41099 RemoteHost RemoteService RemoteInstance 127.0.0.1 42099 db2inst4 PrimaryFile PrimaryPg PrimaryLSN S0000000.LOG 0 0x0000000002AC24A1 StandByFile StandByPg StandByLSN StandByRcvBufUsed S0000000.LOG 0 0x0000000002AC24A1 0% --再启动Primary --在Primary： [db2inst4@localhost ~]$ db2 start hadr on database sample as primary DB20000I The START HADR ON DATABASE command completed successfully. [db2inst4@localhost ~]$ db2pd -d sample -hadr Database Partition 0 -- Database SAMPLE -- Active -- Up 0 days 00:00:15 HADR Information: Role State SyncMode HeartBeatsMissed LogGapRunAvg (bytes) Primary Peer Sync 0 0 ConnectStatus ConnectTime Timeout Connected Sat Apr 30 14:14:14 2011 (1304144054) 3 PeerWindowEnd PeerWindow Sat Apr 30 14:16:26 2011 (1304144186) 120 LocalHost LocalService 127.0.0.1 42099 RemoteHost RemoteService RemoteInstance 127.0.0.1 41099 db2inst5 PrimaryFile PrimaryPg PrimaryLSN S0000002.LOG 0 0x0000000003288861 StandByFile StandByPg StandByLSN S0000002.LOG 0 0x0000000003288861 --可以看到一旦Primary也起来了，hadr的状态就会变成peer --这时候尝试手动归档，看日志是否能够顺利传递到standby [db2inst4@localhost ~]$ db2 archive log for DB sample DB20000I The ARCHIVE LOG command completed successfully. --在Standby观察 [db2inst5@localhost ~]$ db2pd -d sample -hadr Database Partition 0 -- Database SAMPLE -- Standby -- Up 0 days 00:05:25 HADR Information: Role State SyncMode HeartBeatsMissed LogGapRunAvg (bytes) Standby Peer Sync 0 0 ConnectStatus ConnectTime Timeout Connected Sat Apr 30 14:14:14 2011 (1304144054) 3 PeerWindowEnd PeerWindow Sat Apr 30 14:17:18 2011 (1304144238) 120 LocalHost LocalService 127.0.0.1 41099 RemoteHost RemoteService RemoteInstance 127.0.0.1 42099 db2inst4 PrimaryFile PrimaryPg PrimaryLSN S0000003.LOG 0 0x000000000366BA41 StandByFile StandByPg StandByLSN StandByRcvBufUsed S0000003.LOG 0 0x000000000366BA41 0% --两边当前日志都是S0000003.LOG，测试成功