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博客园 - 惜分飞

使用deepseek进行Oracle恢复,引起重大故障---惜分飞 硬件故障后数据文件大小不对故障处理—Oracle碎片扫描恢复 1.5T MySQL数据库完美恢复---惜分飞 asm dd 10M导致system文件部分坏块修复---惜分飞 一次断电引起的Oracle故障恢复-ora-600 2662故障---惜分飞 Oracle故障第一现场被恢复混乱的数据库恢复--惜分飞 OraScan (Oracle碎片扫描工具)使用说明 imp导入dmp报IMP-00098: INTERNAL ERROR: impgst2故障处理 记录一次win删除数据文件完美恢复案例 国产信创库fio破坏主备库以及备份故障处理--惜分飞 .wman扩展名勒索mysql数据库恢复 Oracle数据库被勒索加密一键open工具–OraFHR rose双机引起文件系统损坏导致数据库异常故障处理---惜分飞 ORA-704 ORA-604 ORA-1578故障处理 csc(0x0006.d75a14f4) higher than block scn(0x0000.00000000)--故障处理--obet ORA-600 kcratr_nab_less_than_odr和ORA-600 4193故障处理---惜分飞 aix环境10g由于控制器异常导致ORA-600 4000故障处理---惜分飞 不当恢复truncate数据导致数据库不能open处理 在生产环境错误执行dd命令破坏asm磁盘故障恢复---惜分飞 Patch_SCN快速解决ORA-600 2663故障 obet快速修改scn/resetlogs恢复数据库(缺少归档,ORA-00308) sql server 事务日志备份异常恢复案例---惜分飞 linux异常磁盘lvm恢复---惜分飞 win平台挂起Oracle数据库启动进程 expdp dmp 导出不完整导入ORA-39059 ORA-39246 故障抢救数据 mysql drop database 无有效备份恢复思路 mysql drop database 无法备份恢复思路
obet实现对数据文件坏块检测功能(obet dbv)
惜分飞 · 2026-01-11 · via 博客园 - 惜分飞

3. oracle dbv一条命令执行检测一个数据文件,如果数据文件多,检查起来很繁琐
4. oracle dbv么有检查进度,对于io性能较慢,数据文件较大的情况,无法跟踪检查进度.

obet的dbv功能使用
1. 配置listfile.txt文件,格式为file# name

2. 启动obet,执行open listfile.txt(如果不在obet目录提供完整路径)

3. 执行dbv命令(logfile 部分为可选),默认会记录日志在obet目录下面dbv_年月日时分秒.log的日志

OBET> dbv

===============================================

DBV (Data Block Verification)

Block Size: 8192 bytes

===============================================

Verifying file

file 1, block 0: checksum error (expected 0xC4DA, got 0xC478), bad block

file 1, block 1: checksum error (expected 0xF835, got 0xB835), bad block

  Progress: 10000 / 131841 blocks checked...

  Progress: 20000 / 131841 blocks checked...

……………….

  Progress: 120000 / 131841 blocks checked...

  Progress: 130000 / 131841 blocks checked...

  File

Verifying file

  Progress: 10000 / 4194303 blocks checked...

  Progress: 20000 / 4194303 blocks checked...

……………………

  Progress: 260000 / 4194303 blocks checked...

  Progress: 270000 / 4194303 blocks checked...

file 5, block 277678: tailchk error (expected 0x0228BB21, got 0x0228AD21), bad block

file 5, block 277679: rdba error (expected 277679, got 277615), bad block

file 5, block 277680: rdba error (expected 277680, got 277616), bad block

file 5, block 277681: rdba error (expected 277681, got 277617), bad block

………………

file 5, block 277692: rdba error (expected 277692, got 277628), bad block

file 5, block 277693: rdba error (expected 277693, got 277629), bad block

file 5, block 277694: rdba error (expected 277694, got 277630), bad block

file 5, block 279406: tailchk error (expected 0x02281E22, got 0x00000700), bad block

file 5, block 279407: rdba error (expected 279407, got 448), bad block

file 5, block 279408: rdba error (expected 279408, got 0), bad block

………………

  Progress: 280000 / 4194303 blocks checked...

  Progress: 290000 / 4194303 blocks checked...

  Progress: 300000 / 4194303 blocks checked...

  Progress: 310000 / 4194303 blocks checked...

file 5, block 312932: tailchk error (expected 0x0106C0B8, got 0x010629B8), bad block

file 5, block 312933: rdba error (expected 312933, got 312869), bad block

file 5, block 312934: rdba error (expected 312934, got 312870), bad block

file 5, block 312935: rdba error (expected 312935, got 312871), bad block

file 5, block 312936: rdba error (expected 312936, got 312872), bad block

file 5, block 312937: rdba error (expected 312937, got 312873), bad block

file 5, block 312938: rdba error (expected 312938, got 312874), bad block

file 5, block 312939: rdba error (expected 312939, got 312875), bad block

………………

  Progress: 4180000 / 4194303 blocks checked...

  Progress: 4190000 / 4194303 blocks checked...

  File

DBV completed at: 2026-01-11 18:09:30

===============================================

DBV Summary:

Total blocks checked: 4325872

Total all zero blocks found: 1

Total all rdba error blocks found: 255

Total all tailchk error blocks found: 13

Total all soft corrupted blocks found: 0

Total all checksum error blocks found: 3

Total bad blocks found: 272

===============================================

Detailed report saved to: dbv_20260111180358.log

OBET>