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[Exadata常规管理] 10g RAC asm磁盘组频繁mounted/dismounted的疑问

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发表于 2013-7-18 11:16:40 | 查看: 3676| 回复: 4

本帖最后由 kim_meng 于 2013-7-18 11:18 编辑

OS信息
Red Hat Enterprise Linux 5.0 x86_64
uname -r
2.6.18-194.el5

DB信息
64bit Oracle 10g RAC 10.2.0.5

查看RDBMS的alert日志文件，发现有个ARCH磁盘组频繁的出现mounted/dismounted的日志。
不知道为何这样，属不属于正常？
为何DATA磁盘不会。

+ARCH为archivelog存储区域
+DATA为datafile存储区域

谢谢

============有工作负载时==================
SUCCESS: diskgroup ARCH was mounted
Tue Mar 26 10:20:03 CST 2013
SUCCESS: diskgroup ARCH was dismounted
Tue Mar 26 10:37:51 CST 2013
Thread 2 advanced to log sequence 60545 (LGWR switch)
  Current log# 5 seq# 60545 mem# 0: +DATA/fezx/onlinelog/group_5.265.741384143
Tue Mar 26 10:37:51 CST 2013
SUCCESS: diskgroup ARCH was mounted
Tue Mar 26 10:38:09 CST 2013
SUCCESS: diskgroup ARCH was dismounted
Tue Mar 26 10:59:16 CST 2013
Thread 2 advanced to log sequence 60546 (LGWR switch)
  Current log# 6 seq# 60546 mem# 0: +DATA/fezx/onlinelog/group_6.263.741384145
Tue Mar 26 10:59:16 CST 2013
SUCCESS: diskgroup ARCH was mounted
Tue Mar 26 10:59:29 CST 2013
SUCCESS: diskgroup ARCH was dismounted
Tue Mar 26 11:20:30 CST 2013
Thread 2 advanced to log sequence 60547 (LGWR switch)
  Current log# 7 seq# 60547 mem# 0: +DATA/fezx/onlinelog/group_7.262.741384145
Tue Mar 26 11:20:30 CST 2013
SUCCESS: diskgroup ARCH was mounted
Tue Mar 26 11:20:47 CST 2013
SUCCESS: diskgroup ARCH was dismounted
==============================

===========无工作负载时===================
SUCCESS: diskgroup ARCH was mounted
Mon Mar 25 21:45:25 CST 2013
SUCCESS: diskgroup ARCH was dismounted
Mon Mar 25 21:45:51 CST 2013
SUCCESS: diskgroup ARCH was mounted
Mon Mar 25 21:48:06 CST 2013
SUCCESS: diskgroup ARCH was dismounted
Mon Mar 25 21:48:18 CST 2013
SUCCESS: diskgroup ARCH was mounted
Mon Mar 25 21:48:26 CST 2013
SUCCESS: diskgroup ARCH was dismounted
Mon Mar 25 21:48:56 CST 2013
SUCCESS: diskgroup ARCH was mounted
Mon Mar 25 21:51:13 CST 2013
SUCCESS: diskgroup ARCH was dismounted
Mon Mar 25 21:51:19 CST 2013
SUCCESS: diskgroup ARCH was mounted
Mon Mar 25 21:51:27 CST 2013
SUCCESS: diskgroup ARCH was dismounted
Mon Mar 25 21:51:52 CST 2013
SUCCESS: diskgroup ARCH was mounted
Mon Mar 25 21:54:06 CST 2013
SUCCESS: diskgroup ARCH was dismounted
Mon Mar 25 21:54:29 CST 2013
SUCCESS: diskgroup ARCH was mounted
Mon Mar 25 21:54:38 CST 2013
SUCCESS: diskgroup ARCH was dismounted
Mon Mar 25 21:55:03 CST 2013
SUCCESS: diskgroup ARCH was mounted
Mon Mar 25 21:57:14 CST 2013
SUCCESS: diskgroup ARCH was dismounted
Mon Mar 25 21:57:30 CST 2013
SUCCESS: diskgroup ARCH was mounted
Mon Mar 25 21:57:38 CST 2013
SUCCESS: diskgroup ARCH was dismounted
Mon Mar 25 21:58:04 CST 2013
SUCCESS: diskgroup ARCH was mounted
==============================

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