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Oracle的home目录空间占用异常处理

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Jun 07, 2016 pm 05:21 PM

OS：HP-UX B.11.31 U ia64Oracle：10.2.0.4Oracle的home目录空间占用异常处理,情况如下：/export/home/oracle 空间占用90％了du

OS：HP-UX B.11.31 U ia64
Oracle：10.2.0.4
Oracle的home目录空间占用异常处理,情况如下：
/export/home/oracle 空间占用90％了
du出来的空间是8333060，bdf出来的是18725588

bdf结果如下：
/dev/vg00/lv_oracle
20971520 18726676 2147848 90% /export/home/oracle

du检查结果如下：
[/export/home/oracle]#du -sk
8334001 .

初步判断是由于有人直接删除了Oracle还在读写的后台日志导致。

碰下运气，检查一下.sh_history 看看是否有相关操作记录，果然发现有如下记录：
rm inas2_mmnl_8657.trc
rm inas2_diag_8612.trc

继续检查发现，进程都存在，日志已经不存在了。

试试Recreate删除的后台跟踪文件，重建Trace文件：
SYS@inas2 SQL> oradebug setospid 8612
Oracle pid: 5, Unix process pid: 8612, image: oracle@inasdb2 (DIAG)
SYS@inas2 SQL> oradebug close_trace
Statement processed.
SYS@inas2 SQL> oradebug flush
Statement processed.
SYS@inas2 SQL> exit

另外一个重建过程如上。

重建完毕之后，检查发现，空间已经释放：
bdf
/dev/vg00/lv_oracle
20971520 8485133 11748094 42% /export/home/oracle

非常幸运的处理过程，如果没有办法检查出来是哪些进程占用了空间，只能重启该数据库实例来释放空间了，Oracle日志清理需要检查清楚，不明确的情况下最好使用先备份，再清空文件的方式。

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