oracle asm disk被格式化为ntfs文件系统

发布时间：2020-07-29 15:11:39 所属栏目：Oracle 来源：互联网

导读：数据库实例日志： Tue Mar 01 12:18:12 2016 SUCCESS: diskgroup ORADISKGRP1 was dismounted SUCCESS: diskgroup ORADISKGRP1 was dismounted Errors in file C:APPORACLEPRODUCT11.2.0diagrdbmsbflexbflex1trace

数据库实例日志：

Tue Mar 01 12:18:12 2016

SUCCESS: diskgroup ORADISKGRP1 was dismounted

Errors in file C:APPORACLEPRODUCT11.2.0diagrdbmsbflexbflex1tracebflex1_ckpt_6376.trc:

ORA-00206: error in writing (block 3,# blocks 1) of control file

ORA-00202: control file: '+ORADISKGRP1/bflex/controlfile/current.287.925642037'

ORA-15078: ASM diskgroup was forcibly dismounted

再看asm日志

ASM Health Checker found 1 new failures

Dirty Detach Reconfiguration complete

Tue Nov 01 12:18:12 2016

WARNING: dirty detached from domain 1

NOTE: cache dismounted group 1/0x5DD073B7 (ORADISKGRP1)

SQL> alter diskgroup ORADISKGRP1 dismount force /* ASM SERVER:1573942199 */

NOTE: cache deleting context for group ORADISKGRP1 1/0x5dd073b7

GMON dismounting group 1 at 6 for pid 30,osid 7684

NOTE: Disk ORADISKGRP1_0000 in mode 0x7f marked for de-assignment

NOTE: Disk ORADISKGRP1_0001 in mode 0x7f marked for de-assignment

NOTE: Disk ORADISKGRP1_0002 in mode 0x7f marked for de-assignment

SUCCESS: alter diskgroup ORADISKGRP1 dismount force /* ASM SERVER:1573942199 */

SUCCESS: ASM-initiated MANDATORY DISMOUNT of group ORADISKGRP1

这里的asm日志很明显由于asm disk无法正常访问,报ORA-27072错误,磁盘组被强制dismount. 一般出现这样故障的原因大多都是人为误操作造成的，比如挂到A机的裸盘被挂至B机，然后被误格式化。

处理办法：

先用kfed恢复磁盘头

C:UsersAdministrator> kfed repair '.J:'C:UsersAdministrator>kfed  
 read'.J:'kfbh.endian: 1 ; 0x000: 0x01 
 
kfbh.hard: 130 ; 0x001: 0x82 
 
kfbh. 
 type: 1 ; 0x002: KFBTYP_DISKHEADkfbh.datfmt: 1 ; 0x003: 0x01 
 
kfbh.block.blk: 254 ; 0x004: T=0 NUMB=0xfe 
 
kfbh.block.obj: 2147483654 ; 0x008: TYPE=0x8 NUMB=0x6 
 
kfbh.check: 717599272 ; 0x00c: 0x2ac5b228 
 
kfbh.fcn.base: 0 ; 0x010: 0x00000000 
 
kfbh.fcn.wrap: 0 ; 0x014: 0x00000000 
 
kfbh.spare1: 0 ; 0x018: 0x00000000 
 
kfbh.spare2: 0 ; 0x01c: 0x00000000 
 
kfdhdb.driver.provstr: ORCLDISKDATA6 ; 0x000: length=13 
 
kfdhdb.driver.reserved[0]: 1096040772 ; 0x008: 0x41544144 
 
kfdhdb.driver.reserved[1]: 54 ; 0x00c: 0x00000036 
 
kfdhdb.driver.reserved[2]: 0 ; 0x010: 0x00000000 
 
kfdhdb.driver.reserved[3]: 0 ; 0x014: 0x00000000 
 
kfdhdb.driver.reserved[4]: 0 ; 0x018: 0x00000000 
 
kfdhdb.driver.reserved[5]: 0 ; 0x01c: 0x00000000 
 
使用asmtool -list查看相关磁盘信息
然后用dbv检测是否有坏块，没有就好办了。幸好asm有备份，用备份恢复即可。
SQL> recover database;完成介质恢复。 
 
SQL>  
 alterdatabaseopen;数据库已更改。
（编辑：鄂州站长网）
【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!