Some excellent experiment From Honcho
为了保护disks 上的数据，Oracle ASM 对disk groups 有3种冗余方式:
（1）external redundancy 表示Oracle不帮你管理镜像，功能由外部存储系统实现，比如通过RAID技[……]
November 25, 2012 oracle, RAC No comments asm
September 26, 2012 Exadata, oracle 2 comments asm
问题描述：在Exadata迁移中使用的DG被直接用asmcmd从asm中rm掉了所有datafile.但是最后的一级目录无法删除,并且影响到了其他实例.在rm hang之后 diskgroup无法添加任何文件.原来的实例的所有add datafile drop directory操作均被hang住[……]
June 13, 2012 oracle, RAC No comments asm
Why ASM?
. ASM is an Oracle provided Database/Cluster filesystem and Storage Volume manager, optimized for Oracle for any kind of workload (b[……]
April 26, 2012 maintain, oracle, RAC No comments 11g new feature, asm
ASM – ora.asm error
11.2.0.3 RAC CRS 无法启动
[ohasd(25286)]CRS-2112:The OLR service started on node db-41.
2012-04-25 14:46:13.120
[ohas[……]
April 25, 2012 oracle, RAC 2 comments asm
ASM Preferred mirror Read
Introduction
The concept of the Preferred Read is not a new idea, but is now implemented in Oracle’s ASM volume[……]
October 19, 2011 oracle, RAC 2 comments asm
ASMLIB是一种基于Linux module，专门为Oracle Automatic Storage Management特性设计的内核支持库
(kernel support library)。
长久以来我们对ASMLIB的认识并不全面，这里我们来具体了解一下使用ASMLIB的优缺点。[……]