HANA數據庫備份查看和還原

1.檢查trace文件

cat backup.log |grep "/usr/sap/HEQ/HDB00/backup/data/"

2.通過studio檢查catalog

3.查看視圖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","","<ok>",""
1479874724234,"complete data backup",1479874724234,"2016-11-23 12:18:44.234000000","2016-11-23 04:18:44.234000000","2016-11-23 12:33:37.222000000","2016-11-23 04:33:37.222000000","successful","","<ok>",""
1479872660066,"complete data backup",1479872660066,"2016-11-23 11:44:20.066000000","2016-11-23 03:44:20.066000000","2016-11-23 12:01:43.350000000","2016-11-23 04:01:43.350000000","successful","","<ok>",""
1479870313939,"complete data backup",1479870313939,"2016-11-23 11:05:13.939000000","2016-11-23 03:05:13.939000000","2016-11-23 11:22:28.214000000","2016-11-23 03:22:28.214000000","successful","","<ok>",""
1479869176913,"complete data backup",1479869176913,"2016-11-23 10:46:16.913000000","2016-11-23 02:46:16.913000000","2016-11-23 11:03:19.029000000","2016-11-23 03:03:19.029000000","successful","","<ok>",""
1479800886690,"complete data backup",1479800886690,"2016-11-22 15:48:06.690000000","2016-11-22 07:48:06.690000000","2016-11-22 16:04:25.923000000","2016-11-22 08:04:25.923000000","successful","","<ok>",""
1479110498231,"complete data backup",1479110498231,"2016-11-14 16:01:38.231000000","2016-11-14 08:01:38.231000000","2016-11-14 16:16:56.940000000","2016-11-14 08:16:56.940000000","successful","","<ok>",""

4.如果想檢查某一個備份是否OK可以這么做

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查看詳細信息

還原數據庫可以通過studio，下面是命令行還原過程：

1.To call recoverSys.py, enter the statement in the following format: HDBSettings.sh recoverSys.py

[<parameters>]

If you run HDBSettings.sh recoverSys.py without any parameters, recoverSys.py performs a

recovery to the most recent point in time

在HDB運行的時候刪掉一個數據文件，做一個默認還原恢復

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

可以此時可以查看iostat-d 1 等待IO完成HDB自動開啟發現，數據庫已經恢復到最近正常狀態
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      37888

heqadm@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，之前備份的命令是："backup data using file ('$date.complete')"

那么還原的命令是：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.查看可以還原恢復到哪個時間點

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_4965451904.1479887545567

heqadm@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>

可以指定備份和日志的目錄

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>