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标题：Oracle Exadata坏盘导致磁盘组无法mount恢复
作者：惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]
接到朋友求救有客户oracle exadata一体机 的 asm磁盘组无法mount,希望我们提供恢复支持服务
经过分析和了解，大致问题是：磁盘空间已经超容量使用（部分数据不能完成ASM镜像），最近又损坏一块盘，导致asm 磁盘组无法mount。我们分析后，通过重构exadata celldisk数据，将asm 磁盘组 mount成功后，实现五套数据库全部open成功（由于底层磁盘部分数据损坏，导致部分数据访问报错，需要在oracle层面进行处理）。
本次问题的具体分析和处理如下：
存放数据库文件的磁盘组不能mount
Wed Dec 12 21:29:04 2018 SQL> alter diskgroup DATA_XFF mount force NOTE: cache registered group DATA_XFF number=1 incarn=0x5fe882cb NOTE: cache began mount (first) of group DATA_XFF number=1 incarn=0x5fe882cb NOTE: Assigning number (1,36) to disk (o/192.168.10.5/DATA_XFF_CD_11_XFFCEL03) NOTE: Assigning number (1,34) to disk (o/192.168.10.5/DATA_XFF_CD_10_XFFCEL03) NOTE: Assigning number (1,37) to disk (o/192.168.10.5/DATA_XFF_CD_04_XFFCEL03) NOTE: Assigning number (1,38) to disk (o/192.168.10.5/DATA_XFF_CD_00_XFFCEL03) NOTE: Assigning number (1,39) to disk (o/192.168.10.5/DATA_XFF_CD_03_XFFCEL03) NOTE: Assigning number (1,40) to disk (o/192.168.10.5/DATA_XFF_CD_05_XFFCEL03) NOTE: Assigning number (1,41) to disk (o/192.168.10.5/DATA_XFF_CD_08_XFFCEL03) NOTE: Assigning number (1,42) to disk (o/192.168.10.5/DATA_XFF_CD_01_XFFCEL03) NOTE: Assigning number (1,43) to disk (o/192.168.10.5/DATA_XFF_CD_09_XFFCEL03) NOTE: Assigning number (1,44) to disk (o/192.168.10.5/DATA_XFF_CD_06_XFFCEL03) NOTE: Assigning number (1,45) to disk (o/192.168.10.5/DATA_XFF_CD_07_XFFCEL03) NOTE: Assigning number (1,46) to disk (o/192.168.10.5/DATA_XFF_CD_02_XFFCEL03) NOTE: Assigning number (1,22) to disk (o/192.168.10.4/DATA_XFF_CD_10_XFFCEL02) NOTE: Assigning number (1,18) to disk (o/192.168.10.4/DATA_XFF_CD_06_XFFCEL02) NOTE: Assigning number (1,19) to disk (o/192.168.10.4/DATA_XFF_CD_07_XFFCEL02) NOTE: Assigning number (1,15) to disk (o/192.168.10.4/DATA_XFF_CD_03_XFFCEL02) NOTE: Assigning number (1,20) to disk (o/192.168.10.4/DATA_XFF_CD_08_XFFCEL02) NOTE: Assigning number (1,17) to disk (o/192.168.10.4/DATA_XFF_CD_05_XFFCEL02) NOTE: Assigning number (1,16) to disk (o/192.168.10.4/DATA_XFF_CD_04_XFFCEL02) NOTE: Assigning number (1,23) to disk (o/192.168.10.4/DATA_XFF_CD_11_XFFCEL02) NOTE: Assigning number (1,12) to disk (o/192.168.10.4/DATA_XFF_CD_00_XFFCEL02) NOTE: Assigning number (1,21) to disk (o/192.168.10.4/DATA_XFF_CD_09_XFFCEL02) NOTE: Assigning number (1,13) to disk (o/192.168.10.4/DATA_XFF_CD_01_XFFCEL02) NOTE: Assigning number (1,14) to disk (o/192.168.10.4/DATA_XFF_CD_02_XFFCEL02) NOTE: Assigning number (1,1) to disk (o/192.168.10.3/DATA_XFF_CD_05_XFFCEL01) NOTE: Assigning number (1,2) to disk (o/192.168.10.3/DATA_XFF_CD_03_XFFCEL01) NOTE: Assigning number (1,3) to disk (o/192.168.10.3/DATA_XFF_CD_06_XFFCEL01) NOTE: Assigning number (1,4) to disk (o/192.168.10.3/DATA_XFF_CD_09_XFFCEL01) NOTE: Assigning number (1,5) to disk (o/192.168.10.3/DATA_XFF_CD_04_XFFCEL01) NOTE: Assigning number (1,6) to disk (o/192.168.10.3/DATA_XFF_CD_07_XFFCEL01) NOTE: Assigning number (1,7) to disk (o/192.168.10.3/DATA_XFF_CD_11_XFFCEL01) NOTE: Assigning number (1,8) to disk (o/192.168.10.3/DATA_XFF_CD_01_XFFCEL01) NOTE: Assigning number (1,9) to disk (o/192.168.10.3/DATA_XFF_CD_00_XFFCEL01) NOTE: Assigning number (1,10) to disk (o/192.168.10.3/DATA_XFF_CD_10_XFFCEL01) NOTE: Assigning number (1,11) to disk (o/192.168.10.3/DATA_XFF_CD_08_XFFCEL01) Wed Dec 12 21:29:10 2018 NOTE: GMON heartbeating for grp 1 GMON querying group 1 at 101 for pid 27, osid 62541 NOTE: Assigning number (1,0) to disk () GMON querying group 1 at 102 for pid 27, osid 62541 NOTE: process _user62541_+asm2 (62541) initiating offline of disk 0.3915937355 () with mask 0x7e[0x7f] in group 1 NOTE: initiating PST update: grp = 1, dsk = 0/0xe968764b, mask = 0x6a, op = clear GMON updating disk modes for group 1 at 103 for pid 27, osid 62541 ERROR: Disk 0 cannot be offlined, since all the disks [0, 25] with mirrored data would be offline. ERROR: too many offline disks in PST (grp 1) WARNING: Offline of disk 0 () in group 1 and mode 0x7f failed on ASM inst 2 NOTE: cache dismounting (not clean) group 1/0x5FE882CB (DATA_XFF) NOTE: dbwr not being msg'd to dismount NOTE: lgwr not being msg'd to dismount NOTE: cache dismounted group 1/0x5FE882CB (DATA_XFF) NOTE: cache ending mount (fail) of group DATA_XFF number=1 incarn=0x5fe882cb NOTE: cache deleting context for group DATA_XFF 1/0x5fe882cb GMON dismounting group 1 at 104 for pid 27, osid 62541 ERROR: diskgroup DATA_XFF was not mounted ORA-15032: not all alterations performed ORA-15040: diskgroup is incomplete ORA-15066: offlining disk "0" in group "DATA_XFF" may result in a data loss ORA-15042: ASM disk "0" is missing from group number "1" ERROR: alter diskgroup DATA_XFF mount force
检查底层损坏情况
CellCLI> list physicaldisk
20:0 KN3VZL normal
20:1 KNAWLL normal
20:2 KN4E4L warning - predictive failure, poor performance
20:3 KNAN5L normal
20:4 KMJKYL normal
20:5 KN5DGL normal
20:6 KMDLWL normal
20:7 KMDKPL normal
20:8 KMDA7L normal
20:9 KN1YJL normal
20:10 KMH1YL normal
20:11 KMVHAL normal
CellCLI> list griddisk
DATA_XFF_CD_00_XFFCEL01 active
DATA_XFF_CD_01_XFFCEL01 active
DATA_XFF_CD_02_XFFCEL01 proactive failure
DATA_XFF_CD_03_XFFCEL01 active
DATA_XFF_CD_04_XFFCEL01 active
DATA_XFF_CD_05_XFFCEL01 active
DATA_XFF_CD_06_XFFCEL01 active
DATA_XFF_CD_07_XFFCEL01 active
DATA_XFF_CD_08_XFFCEL01 active
DATA_XFF_CD_09_XFFCEL01 active
DATA_XFF_CD_10_XFFCEL01 active
DATA_XFF_CD_11_XFFCEL01 active
在db节点无法发现异常磁盘的asm disk
[grid@ycdwdb01 grid]$ kfod disk=all -------------------------------------------------------------------------------- Disk Size Path User Group ============================================================ 1: 433152 Mb o/192.168.10.3/DATA_XFF_CD_00_XFFCEL01 <unknown> <unknown> 2: 433152 Mb o/192.168.10.3/DATA_XFF_CD_01_XFFCEL01 <unknown> <unknown> 3: 433152 Mb o/192.168.10.3/DATA_XFF_CD_03_XFFCEL01 <unknown> <unknown> 4: 433152 Mb o/192.168.10.3/DATA_XFF_CD_04_XFFCEL01 <unknown> <unknown> 5: 433152 Mb o/192.168.10.3/DATA_XFF_CD_05_XFFCEL01 <unknown> <unknown> 6: 433152 Mb o/192.168.10.3/DATA_XFF_CD_06_XFFCEL01 <unknown> <unknown> 7: 433152 Mb o/192.168.10.3/DATA_XFF_CD_07_XFFCEL01 <unknown> <unknown> 8: 433152 Mb o/192.168.10.3/DATA_XFF_CD_08_XFFCEL01 <unknown> <unknown> 9: 433152 Mb o/192.168.10.3/DATA_XFF_CD_09_XFFCEL01 <unknown> <unknown> 10: 433152 Mb o/192.168.10.3/DATA_XFF_CD_10_XFFCEL01 <unknown> <unknown> 11: 433152 Mb o/192.168.10.3/DATA_XFF_CD_11_XFFCEL01 <unknown> <unknown>
根据客户的反馈该磁盘组几乎全部被使用,asmcmd lsdg看到Usable_file_MB已经出现负值.证明该磁盘组本身的normal没有完全存储两份数据,在这样的情况下,继续坏盘会导致部分数据只有一份,因此也就出现了这里的磁盘组无法正常mount成功.
通过底层修复celldisk之后
CellCLI> list griddisk
DATA_XFF_CD_00_XFFCEL01 active
DATA_XFF_CD_01_XFFCEL01 active
DATA_XFF_CD_02_XFFCEL01 active
DATA_XFF_CD_03_XFFCEL01 active
DATA_XFF_CD_04_XFFCEL01 active
DATA_XFF_CD_05_XFFCEL01 active
DATA_XFF_CD_06_XFFCEL01 active
DATA_XFF_CD_07_XFFCEL01 active
DATA_XFF_CD_08_XFFCEL01 active
DATA_XFF_CD_09_XFFCEL01 active
DATA_XFF_CD_10_XFFCEL01 active
DATA_XFF_CD_11_XFFCEL01 active
[grid@ycdwdb01 grid]$ kfod disk=all
--------------------------------------------------------------------------------
Disk Size Path User Group
============================================================
1: 433152 Mb o/192.168.10.3/DATA_XFF_CD_00_XFFCEL01 <unknown> <unknown>
2: 433152 Mb o/192.168.10.3/DATA_XFF_CD_01_XFFCEL01 <unknown> <unknown>
3: 433152 Mb o/192.168.10.3/DATA_XFF_CD_02_XFFCEL01 <unknown> <unknown>
4: 433152 Mb o/192.168.10.3/DATA_XFF_CD_03_XFFCEL01 <unknown> <unknown>
5: 433152 Mb o/192.168.10.3/DATA_XFF_CD_04_XFFCEL01 <unknown> <unknown>
6: 433152 Mb o/192.168.10.3/DATA_XFF_CD_05_XFFCEL01 <unknown> <unknown>
7: 433152 Mb o/192.168.10.3/DATA_XFF_CD_06_XFFCEL01 <unknown> <unknown>
8: 433152 Mb o/192.168.10.3/DATA_XFF_CD_07_XFFCEL01 <unknown> <unknown>
9: 433152 Mb o/192.168.10.3/DATA_XFF_CD_08_XFFCEL01 <unknown> <unknown>
10: 433152 Mb o/192.168.10.3/DATA_XFF_CD_09_XFFCEL01 <unknown> <unknown>
11: 433152 Mb o/192.168.10.3/DATA_XFF_CD_10_XFFCEL01 <unknown> <unknown>
12: 433152 Mb o/192.168.10.3/DATA_XFF_CD_11_XFFCEL01 <unknown> <unknown>
data磁盘组直接mount成功
Fri Dec 14 14:04:59 2018 SQL> alter diskgroup DATA_XFF mount NOTE: cache registered group DATA_XFF number=1 incarn=0x78a886e7 NOTE: cache began mount (not first) of group DATA_XFF number=1 incarn=0x78a886e7 NOTE: Assigning number (1,36) to disk (o/192.168.10.5/DATA_XFF_CD_11_XFFCEL03) NOTE: Assigning number (1,34) to disk (o/192.168.10.5/DATA_XFF_CD_10_XFFCEL03) NOTE: Assigning number (1,37) to disk (o/192.168.10.5/DATA_XFF_CD_04_XFFCEL03) NOTE: Assigning number (1,38) to disk (o/192.168.10.5/DATA_XFF_CD_00_XFFCEL03) NOTE: Assigning number (1,39) to disk (o/192.168.10.5/DATA_XFF_CD_03_XFFCEL03) NOTE: Assigning number (1,40) to disk (o/192.168.10.5/DATA_XFF_CD_05_XFFCEL03) NOTE: Assigning number (1,41) to disk (o/192.168.10.5/DATA_XFF_CD_08_XFFCEL03) NOTE: Assigning number (1,42) to disk (o/192.168.10.5/DATA_XFF_CD_01_XFFCEL03) NOTE: Assigning number (1,43) to disk (o/192.168.10.5/DATA_XFF_CD_09_XFFCEL03) NOTE: Assigning number (1,44) to disk (o/192.168.10.5/DATA_XFF_CD_06_XFFCEL03) NOTE: Assigning number (1,45) to disk (o/192.168.10.5/DATA_XFF_CD_07_XFFCEL03) NOTE: Assigning number (1,46) to disk (o/192.168.10.5/DATA_XFF_CD_02_XFFCEL03) NOTE: Assigning number (1,22) to disk (o/192.168.10.4/DATA_XFF_CD_10_XFFCEL02) NOTE: Assigning number (1,18) to disk (o/192.168.10.4/DATA_XFF_CD_06_XFFCEL02) NOTE: Assigning number (1,19) to disk (o/192.168.10.4/DATA_XFF_CD_07_XFFCEL02) NOTE: Assigning number (1,15) to disk (o/192.168.10.4/DATA_XFF_CD_03_XFFCEL02) NOTE: Assigning number (1,20) to disk (o/192.168.10.4/DATA_XFF_CD_08_XFFCEL02) NOTE: Assigning number (1,17) to disk (o/192.168.10.4/DATA_XFF_CD_05_XFFCEL02) NOTE: Assigning number (1,16) to disk (o/192.168.10.4/DATA_XFF_CD_04_XFFCEL02) NOTE: Assigning number (1,23) to disk (o/192.168.10.4/DATA_XFF_CD_11_XFFCEL02) NOTE: Assigning number (1,12) to disk (o/192.168.10.4/DATA_XFF_CD_00_XFFCEL02) NOTE: Assigning number (1,21) to disk (o/192.168.10.4/DATA_XFF_CD_09_XFFCEL02) NOTE: Assigning number (1,13) to disk (o/192.168.10.4/DATA_XFF_CD_01_XFFCEL02) NOTE: Assigning number (1,14) to disk (o/192.168.10.4/DATA_XFF_CD_02_XFFCEL02) NOTE: Assigning number (1,1) to disk (o/192.168.10.3/DATA_XFF_CD_05_XFFCEL01) NOTE: Assigning number (1,2) to disk (o/192.168.10.3/DATA_XFF_CD_03_XFFCEL01) NOTE: Assigning number (1,3) to disk (o/192.168.10.3/DATA_XFF_CD_06_XFFCEL01) NOTE: Assigning number (1,4) to disk (o/192.168.10.3/DATA_XFF_CD_09_XFFCEL01) NOTE: Assigning number (1,5) to disk (o/192.168.10.3/DATA_XFF_CD_04_XFFCEL01) NOTE: Assigning number (1,6) to disk (o/192.168.10.3/DATA_XFF_CD_07_XFFCEL01) NOTE: Assigning number (1,7) to disk (o/192.168.10.3/DATA_XFF_CD_11_XFFCEL01) NOTE: Assigning number (1,8) to disk (o/192.168.10.3/DATA_XFF_CD_01_XFFCEL01) NOTE: Assigning number (1,9) to disk (o/192.168.10.3/DATA_XFF_CD_00_XFFCEL01) NOTE: Assigning number (1,10) to disk (o/192.168.10.3/DATA_XFF_CD_10_XFFCEL01) NOTE: Assigning number (1,11) to disk (o/192.168.10.3/DATA_XFF_CD_08_XFFCEL01) NOTE: Assigning number (1,0) to disk (o/192.168.10.3/DATA_XFF_CD_02_XFFCEL01) Fri Dec 14 14:04:59 2018 GMON querying group 1 at 78 for pid 28, osid 76016 NOTE: Assigning number (1,24) to disk () NOTE: Assigning number (1,25) to disk () NOTE: Assigning number (1,26) to disk () NOTE: Assigning number (1,27) to disk () NOTE: Assigning number (1,28) to disk () NOTE: Assigning number (1,29) to disk () NOTE: Assigning number (1,30) to disk () NOTE: Assigning number (1,31) to disk () NOTE: Assigning number (1,32) to disk () NOTE: Assigning number (1,33) to disk () NOTE: Assigning number (1,35) to disk () GMON querying group 1 at 79 for pid 28, osid 76016 NOTE: cache opening disk 0 of grp 1: DATA_XFF_CD_02_XFFCEL01 path:o/192.168.10.3/DATA_XFF_CD_02_XFFCEL01 NOTE: cache opening disk 1 of grp 1: DATA_XFF_CD_05_XFFCEL01 path:o/192.168.10.3/DATA_XFF_CD_05_XFFCEL01 NOTE: cache opening disk 2 of grp 1: DATA_XFF_CD_03_XFFCEL01 path:o/192.168.10.3/DATA_XFF_CD_03_XFFCEL01 NOTE: F1X0 found on disk 2 au 5 fcn 0.15948262 NOTE: cache opening disk 3 of grp 1: DATA_XFF_CD_06_XFFCEL01 path:o/192.168.10.3/DATA_XFF_CD_06_XFFCEL01 NOTE: cache opening disk 4 of grp 1: DATA_XFF_CD_09_XFFCEL01 path:o/192.168.10.3/DATA_XFF_CD_09_XFFCEL01 NOTE: cache opening disk 5 of grp 1: DATA_XFF_CD_04_XFFCEL01 path:o/192.168.10.3/DATA_XFF_CD_04_XFFCEL01 NOTE: cache opening disk 6 of grp 1: DATA_XFF_CD_07_XFFCEL01 path:o/192.168.10.3/DATA_XFF_CD_07_XFFCEL01 NOTE: cache opening disk 7 of grp 1: DATA_XFF_CD_11_XFFCEL01 path:o/192.168.10.3/DATA_XFF_CD_11_XFFCEL01 NOTE: cache opening disk 8 of grp 1: DATA_XFF_CD_01_XFFCEL01 path:o/192.168.10.3/DATA_XFF_CD_01_XFFCEL01 NOTE: cache opening disk 9 of grp 1: DATA_XFF_CD_00_XFFCEL01 path:o/192.168.10.3/DATA_XFF_CD_00_XFFCEL01 NOTE: cache opening disk 10 of grp 1: DATA_XFF_CD_10_XFFCEL01 path:o/192.168.10.3/DATA_XFF_CD_10_XFFCEL01 NOTE: cache opening disk 11 of grp 1: DATA_XFF_CD_08_XFFCEL01 path:o/192.168.10.3/DATA_XFF_CD_08_XFFCEL01 NOTE: cache opening disk 12 of grp 1: DATA_XFF_CD_00_XFFCEL02 path:o/192.168.10.4/DATA_XFF_CD_00_XFFCEL02 NOTE: cache opening disk 13 of grp 1: DATA_XFF_CD_01_XFFCEL02 path:o/192.168.10.4/DATA_XFF_CD_01_XFFCEL02 NOTE: cache opening disk 14 of grp 1: DATA_XFF_CD_02_XFFCEL02 path:o/192.168.10.4/DATA_XFF_CD_02_XFFCEL02 NOTE: cache opening disk 15 of grp 1: DATA_XFF_CD_03_XFFCEL02 path:o/192.168.10.4/DATA_XFF_CD_03_XFFCEL02 NOTE: cache opening disk 16 of grp 1: DATA_XFF_CD_04_XFFCEL02 path:o/192.168.10.4/DATA_XFF_CD_04_XFFCEL02 NOTE: cache opening disk 17 of grp 1: DATA_XFF_CD_05_XFFCEL02 path:o/192.168.10.4/DATA_XFF_CD_05_XFFCEL02 NOTE: cache opening disk 18 of grp 1: DATA_XFF_CD_06_XFFCEL02 path:o/192.168.10.4/DATA_XFF_CD_06_XFFCEL02 NOTE: cache opening disk 19 of grp 1: DATA_XFF_CD_07_XFFCEL02 path:o/192.168.10.4/DATA_XFF_CD_07_XFFCEL02 NOTE: cache opening disk 20 of grp 1: DATA_XFF_CD_08_XFFCEL02 path:o/192.168.10.4/DATA_XFF_CD_08_XFFCEL02 NOTE: cache opening disk 21 of grp 1: DATA_XFF_CD_09_XFFCEL02 path:o/192.168.10.4/DATA_XFF_CD_09_XFFCEL02 NOTE: F1X0 found on disk 21 au 2 fcn 0.15948262 NOTE: cache opening disk 22 of grp 1: DATA_XFF_CD_10_XFFCEL02 path:o/192.168.10.4/DATA_XFF_CD_10_XFFCEL02 NOTE: cache opening disk 23 of grp 1: DATA_XFF_CD_11_XFFCEL02 path:o/192.168.10.4/DATA_XFF_CD_11_XFFCEL02 NOTE: cache opening disk 36 of grp 1: DATA_XFF_CD_11_XFFCEL03 path:o/192.168.10.5/DATA_XFF_CD_11_XFFCEL03 NOTE: cache opening disk 37 of grp 1: DATA_XFF_CD_04_XFFCEL03 path:o/192.168.10.5/DATA_XFF_CD_04_XFFCEL03 NOTE: cache opening disk 38 of grp 1: DATA_XFF_CD_00_XFFCEL03 path:o/192.168.10.5/DATA_XFF_CD_00_XFFCEL03 NOTE: cache opening disk 39 of grp 1: DATA_XFF_CD_03_XFFCEL03 path:o/192.168.10.5/DATA_XFF_CD_03_XFFCEL03 NOTE: cache opening disk 40 of grp 1: DATA_XFF_CD_05_XFFCEL03 path:o/192.168.10.5/DATA_XFF_CD_05_XFFCEL03 NOTE: cache opening disk 41 of grp 1: DATA_XFF_CD_08_XFFCEL03 path:o/192.168.10.5/DATA_XFF_CD_08_XFFCEL03 NOTE: cache opening disk 42 of grp 1: DATA_XFF_CD_01_XFFCEL03 path:o/192.168.10.5/DATA_XFF_CD_01_XFFCEL03 NOTE: cache opening disk 43 of grp 1: DATA_XFF_CD_09_XFFCEL03 path:o/192.168.10.5/DATA_XFF_CD_09_XFFCEL03 NOTE: cache opening disk 44 of grp 1: DATA_XFF_CD_06_XFFCEL03 path:o/192.168.10.5/DATA_XFF_CD_06_XFFCEL03 NOTE: F1X0 found on disk 44 au 2 fcn 0.15948262 NOTE: cache opening disk 45 of grp 1: DATA_XFF_CD_07_XFFCEL03 path:o/192.168.10.5/DATA_XFF_CD_07_XFFCEL03 NOTE: cache opening disk 46 of grp 1: DATA_XFF_CD_02_XFFCEL03 path:o/192.168.10.5/DATA_XFF_CD_02_XFFCEL03 NOTE: cache mounting (not first) normal redundancy group 1/0x78A886E7 (DATA_XFF) Fri Dec 14 14:04:59 2018 kjbdomatt send to inst 2 Fri Dec 14 14:04:59 2018 NOTE: attached to recovery domain 1 NOTE: redo buffer size is 512 blocks (2101760 bytes) Fri Dec 14 14:04:59 2018 NOTE: LGWR attempting to mount thread 2 for diskgroup 1 (DATA_XFF) NOTE: LGWR found thread 2 closed at ABA 98.4672 NOTE: LGWR mounted thread 2 for diskgroup 1 (DATA_XFF) NOTE: LGWR opening thread 2 at fcn 0.18931129 ABA 99.4673 NOTE: cache mounting group 1/0x78A886E7 (DATA_XFF) succeeded NOTE: cache ending mount (success) of group DATA_XFF number=1 incarn=0x78a886e7 GMON querying group 1 at 80 for pid 19, osid 9805 Fri Dec 14 14:04:59 2018 NOTE: Instance updated compatible.asm to 11.2.0.3.0 for grp 1 SUCCESS: diskgroup DATA_XFF was mounted SUCCESS: alter diskgroup DATA_XFF mount
恢复后的asm磁盘状态
ASMCMD> lsdg State Type Rebal Sector Block AU Total_MB Free_MB Req_mir_free_MB Usable_file_MB Offline_disks Voting_files Name MOUNTED NORMAL Y 512 4096 4194304 15160320 4776184 5197824 -210820 12 N DATA_XFF/ MOUNTED NORMAL N 512 4096 4194304 864896 863400 298240 282580 0 Y DBFS_DG/ MOUNTED NORMAL N 512 4096 4194304 3787840 2157232 1298688 429272 0 N RECO_XFF/
后续数据库open成功,有部分坏块通过技术手段进行二次处理,至此数据库恢复完成,成功抢救了客户Oracle Exadata中的绝大部分数据.如果有类似xd故障恢复,无法自行解决,需要恢复支持请联系我们
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