ASM之ARCH磁盘组挂了学习笔记

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alter diskgroup arch mount
*
ERROR at line 1:
ORA-15032: not all alterations performed
ORA-15130: diskgroup "ARCH" is being dismounted
ORA-15066: offlining disk "ARCH_0001" in group "ARCH" may result in a data loss
ORA-15196: invalid ASM block header [kfr.c:8522] [endian_kfbh] [3] [10805] [0!= 1]

重启时磁盘头有问题，粗暴地解决的这个问题 。前提是磁盘组ARCH 内容可弃。
ALTER DISKGROUP ARCH DROP DISK '/dev/asm-diskg' force;

DROP DISKGROUP ARCH FORCE

清一下磁盘头信息：

dd if=/dev/zero of=/dev/asm-diskg  bs=8192 count=128000

su - grid

asmca  重新创建diskgorup  ARCH

以下是学习笔记：

清除ASM磁盘信息：
dd if=/dev/zero of=/dev/sdxx bs=8192 count=128000

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 alter diskgroup DATA dismount;
 drop diskgroup DATA force including contents;
 srvctl remove diskgroup -g DATA -f

 create diskgroup data2 external redundancy disk '/dev/asm-diskd';