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HANA数据库备份查看和还原-创新互联
1.检查trace文件
cat backup.log |grep "/usr/sap/HEQ/HDB00/backup/data/"
2.通过studio检查catalog
3.查看视图M_BACKUP_CATALOG ---complete data backup/incremental data backup/differential data backup
select * from "M_BACKUP_CATALOG" where ENTRY_TYPE_NAME = 'complete data backup' and state_name='successful' order by sys_start_time desc;ENTRY_ID,ENTRY_TYPE_NAME,BACKUP_ID,SYS_START_TIME,UTC_START_TIME,SYS_END_TIME,UTC_END_TIME,STATE_NAME,COMMENT,MESSAGE,SYSTEM_ID 1479879019957,"complete data backup",1479879019957,"2016-11-23 13:30:19.957000000","2016-11-23 05:30:19.957000000","2016-11-23 13:47:01.453000000","2016-11-23 05:47:01.453000000","successful","","4.如果想检查某一个备份是否OK可以这么做
hdbbackupcheck backup_filename
heqadm@ECQ:/usr/sap/HEQ/HDB00/backup/data/dbsqlbackup> hdbbackupcheck 2016-11-23.complete_databackup_0_1 Backup '/hana/shared/HEQ/HDB00/backup/data/dbsqlbackup/2016-11-23.complete_databackup_0_1' successfully checked. heqadm@ECQ:/usr/sap/HEQ/HDB00/backup/data/dbsqlbackup>hdbbackupcheck -v backup_filename 加v查看详细信息
还原数据库可以通过studio，下面是命令行还原过程：
1.To call recoverSys.py, enter the statement in the following format: HDBSettings.sh recoverSys.py
[
If you run HDBSettings.sh recoverSys.py without any parameters, recoverSys.py performs a
recovery to the most recent point in time
在HDB运行的时候删掉一个数据文件，做一个默认还原恢复
heqadm@ECQ:/usr/sap/HEQ/SYS/global/hdb/data/mnt00001/hdb00003> rm -rf datavolume_0000.dat heqadm@ECQ:/usr/sap/HEQ/HDB00/eccqas/trace> HDBSettings.sh recoverSys.py [140219726718720, 0.002] >> starting recoverSys (at Thu Nov 24 09:20:08 2016) [140219726718720, 0.002] args: () [140219726718720, 0.002] keys: {} own pid: 27909 recoverSys started: 2016-11-24 09:20:08 testing master: eccqas eccqas is master shutdown database, timeout is 120 stop system stop system: eccqas stopping system: 2016-11-24 09:20:08 stopped system: 2016-11-24 09:20:59 creating file recoverInstance.sql restart database restart master nameserver: 2016-11-24 09:21:04 start system: eccqas 2016-11-24T09:21:14+08:00 P028061 15893ec1ad5 INFO RECOVERY state of service: nameserver, eccqas:30001, volume: 1, RecoveryExecuteTopologyAndSSFSRecoveryFinished recoverSys finished successfully: 2016-11-24 09:21:15 [140219726718720, 66.334] 0 [140219726718720, 66.334] << ending recoverSys, rc = 0 (RC_TEST_OK), after 66.332 secs可以此时可以查看iostat-d 1 等待IO完成HDB自动开启发现，数据库已经恢复到最近正常状态 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 166.00 151552.00 16392.00 151552 16392 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 215.00 187392.00 32768.00 187392 32768 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 224.00 201216.00 27648.00 201216 27648 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 233.00 217088.00 21504.00 217088 21504 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 213.86 176918.81 40558.42 178688 40964 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 246.00 216064.00 35840.00 216064 35840 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 226.00 193536.00 37888.00 193536 37888heqadm@ECQ:/usr/sap/HEQ/HDB00/eccqas/trace> sapcontrol -nr 00 -function GetProcessList 24.11.2016 09:41:56 GetProcessList OK name, description, dispstatus, textstatus, starttime, elapsedtime, pid hdbdaemon, HDB Daemon, GREEN, Running, 2016 11 24 09:21:05, 0:20:51, 28043 hdbcompileserver, HDB Compileserver, GREEN, Running, 2016 11 24 09:21:16, 0:20:40, 28131 hdbindexserver, HDB Indexserver, GREEN, Running, 2016 11 24 09:21:22, 0:20:34, 28200 hdbnameserver, HDB Nameserver, GREEN, Running, 2016 11 24 09:21:06, 0:20:50, 28061 hdbpreprocessor, HDB Preprocessor, GREEN, Running, 2016 11 24 09:21:16, 0:20:40, 28134 hdbwebdispatcher, HDB Web Dispatcher, GREEN, Running, 2016 11 24 09:41:20, 0:00:36, 28635 hdbxsengine, HDB XSEngine, GREEN, Running, 2016 11 24 09:21:22, 0:20:34, 28202 heqadm@ECQ:/usr/sap/HEQ/HDB00/eccqas/trace>2.指定文件，之前备份的命令是："backup data using file ('$date.complete')"那么还原的命令是：RECOVER DATA USING file ('2016-11-23.complete')
heqadm@ECQ:/usr/sap/HEQ/SYS/global/hdb/data/mnt00001/hdb00003> HDBSettings.sh recoverSys.py --command="RECOVER DATA USING file ('2016-11-23.complete') CLEAR LOG" [139945440958208, 0.002] >> starting recoverSys (at Thu Nov 24 11:28:56 2016) [139945440958208, 0.002] args: () [139945440958208, 0.002] keys: {'command': "RECOVER DATA USING file ('2016-11-23.complete') CLEAR LOG"} own pid: 30597 recoverSys started: 2016-11-24 11:28:56 testing master: eccqas eccqas is master shutdown database, timeout is 120 stop system stop system: eccqas stopping system: 2016-11-24 11:28:56 stopped system: 2016-11-24 11:28:56 creating file recoverInstance.sql restart database restart master nameserver: 2016-11-24 11:29:01 start system: eccqas 2016-11-24T11:29:11+08:00 P030717 15894613fe1 INFO RECOVERY state of service: nameserver, eccqas:30001, volume: 1, RecoveryExecuteTopologyAndSSFSRecoveryFinished recoverSys finished successfully: 2016-11-24 11:29:11 [139945440958208, 15.490] 0 [139945440958208, 15.491] << ending recoverSys, rc = 0 (RC_TEST_OK), after 15.489 secs heqadm@ECQ:/usr/sap/HEQ/SYS/global/hdb/data/mnt00001/hdb00003>The CLEAR LOG option prevents the recovery of entries from the log area. No log entries from the log area are replayed, and the log area is initialized. As a consequence, the content of the log area is lost.
If they are needed, the log entries from the log backups are replayed.
CLEAR LOG must be used in the following situations:
The log area is unusable.
You are recovering the database to a different system.
The CLEAR LOG command corresponds to the Initialize log area option in SAP HANA studio.
3.查看可以还原恢复到哪个时间点
1821207 - Determining required recovery files
1705945 - Determining required restoration files
heqadm@ECQ:/hana/shared/HEQ/HDB00/backup/data/dbsqlbackup> hdbbackupdiag -f -d /hana/shared/HEQ/HDB00/backup/log/ found backup catalog 1479887651122 from file /hana/shared/HEQ/HDB00/backup/log/log_backup_0_0_0_0.1479887651122 using backup catalog 1479887651122 from file /hana/shared/HEQ/HDB00/backup/log/log_backup_0_0_0_0.1479887651122 2016-11-23.complete_databackup_0_1 2016-11-23.increment_databackup_incremental_0_1479887451566_0_1 2016-11-23.complete_databackup_1_1 2016-11-23.increment_databackup_incremental_1479879019957_1479887451566_1_1 2016-11-23.complete_databackup_2_1 2016-11-23.increment_databackup_incremental_1479879019957_1479887451566_2_1 2016-11-23.complete_databackup_3_1 2016-11-23.increment_databackup_incremental_1479879019957_1479887451566_3_1 log_backup_1_0_1677888_1679488.1479887648977 log_backup_2_0_11973184_11976576.1479887565796 log_backup_3_0_4965350720_4965451904.1479887545567 heqadm@ECQ:/hana/shared/HEQ/HDB00/backup/data/dbsqlbackup>heqadm@ECQ:/hana/shared/HEQ/HDB00/backup/data/dbsqlbackup> hdbbackupdiag -d /hana/shared/HEQ/HDB00/backup/data/dbsqlbackup -b 2016-11-23.complete_databackup Backup file: /hana/shared/HEQ/HDB00/backup/data/dbsqlbackup/2016-11-23.complete_databackup_0_1 Backup time: 2016-11-23T13:30:21+08:00 Backup file: /hana/shared/HEQ/HDB00/backup/data/dbsqlbackup/2016-11-23.complete_databackup_2_1 Backup time: 2016-11-23T13:30:21+08:00 RedoLogPosition: 11925379 Backup file: /hana/shared/HEQ/HDB00/backup/data/dbsqlbackup/2016-11-23.complete_databackup_1_1 Backup time: 2016-11-23T13:30:21+08:00 RedoLogPosition: 1652418 Backup file: /hana/shared/HEQ/HDB00/backup/data/dbsqlbackup/2016-11-23.complete_databackup_3_1 Backup time: 2016-11-23T13:30:21+08:00 RedoLogPosition: 4942939522 heqadm@ECQ:/hana/shared/HEQ/HDB00/backup/data/dbsqlbackup>-rw-r----- 1 heqadm sapsys 6483968 Nov 23 15:54 log_backup_3_0_4965350720_4965451904.1479887545567heqadm@ECQ:/usr/sap/HEQ/HDB00/backup/log> HDBSettings.sh recoverSys.py --command="RECOVER DATABASE UNTIL TIMESTAMP '2016-11-23 15:54:00' CLEAR LOG" [140447315224320, 0.002] >> starting recoverSys (at Thu Nov 24 14:11:26 2016) [140447315224320, 0.002] args: () [140447315224320, 0.002] keys: {'command': "RECOVER DATABASE UNTIL TIMESTAMP '2016-11-23 15:54:00' CLEAR LOG"} own pid: 6290 recoverSys started: 2016-11-24 14:11:26 testing master: eccqas eccqas is master shutdown database, timeout is 120 stop system stop system: eccqas stopping system: 2016-11-24 14:11:26 stopped system: 2016-11-24 14:11:26 creating file recoverInstance.sql restart database restart master nameserver: 2016-11-24 14:11:31 start system: eccqas 2016-11-24T14:11:41+08:00 P006410 15894f606ef INFO RECOVERY state of service: nameserver, eccqas:30001, volume: 1, RecoveryExecuteTopologyAndSSFSRecoveryFinished recoverSys finished successfully: 2016-11-24 14:11:42 [140447315224320, 15.485] 0 [140447315224320, 15.485] << ending recoverSys, rc = 0 (RC_TEST_OK), after 15.483 secs heqadm@ECQ:/usr/sap/HEQ/HDB00/backup/log>可以指定备份和日志的目录
heqadm@ECQ:/usr/sap/HEQ/HDB00> HDBSettings.sh recoverSys.py --command="RECOVER DATABASE UNTIL TIMESTAMP '2016-11-23 15:54:00' CLEAR LOG USING DATA PATH ('/usr/sap/HEQ/HDB00/backup/data/dbsqlbackup/backup/') USING LOG PATH ('/usr/sap/HEQ/HDB00/backup/log/')" [140659884533504, 0.002] >> starting recoverSys (at Thu Nov 24 16:22:37 2016) [140659884533504, 0.002] args: () [140659884533504, 0.002] keys: {'command': "RECOVER DATABASE UNTIL TIMESTAMP '2016-11-23 15:54:00' CLEAR LOG USING DATA PATH ('/usr/sap/HEQ/HDB00/backup/data/dbsqlbackup/backup/') USING LOG PATH ('/usr/sap/HEQ/HDB00/backup/log/')"} own pid: 15906 recoverSys started: 2016-11-24 16:22:37 testing master: eccqas eccqas is master shutdown database, timeout is 120 stop system stop system: eccqas stopping system: 2016-11-24 16:22:37 stopped system: 2016-11-24 16:22:37 creating file recoverInstance.sql restart database restart master nameserver: 2016-11-24 16:22:42 start system: eccqas 2016-11-24T16:22:52+08:00 P016026 158956e207b INFO RECOVERY state of service: nameserver, eccqas:30001, volume: 1, RecoveryExecuteTopologyAndSSFSRecoveryFinished recoverSys finished successfully: 2016-11-24 16:22:53 [140659884533504, 16.000] 0 [140659884533504, 16.000] << ending recoverSys, rc = 0 (RC_TEST_OK), after 15.998 secs heqadm@ECQ:/usr/sap/HEQ/HDB00>另外有需要云服务器可以了解下创新互联cdcxhl.cn，海内外云服务器15元起步，三天无理由+7*72小时售后在线，公司持有idc许可证，提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案，具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势，专为企业上云打造定制，能够满足用户丰富、多元化的应用场景需求。
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