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043-152

原创 Linux操作系统 作者:jbymy2000 时间:2012-03-10 09:18:30 0 删除 编辑
152. In your Automatic Storage Management (ASM) instance, one of the
nonempty disk groups, DGROUP1, is no longer required and you want thi
s disk group to be removed. You execute the following command to achi
eve this objective:
DROP DISKGROUP dgroup1 EXCLUDING CONTENTS;
What would be the result of this command?
A. This command would result in an error because the disk group is no
t empty.
B.The command would distribute the contents of the specified disk gro
up among all other disk groups and then drop the specified disk group
C. The command would result in the contents being moved to the parent
disk group and dropping of the disk group.
D. The command would result in the disk group being marked as INVALID
because it cannot be dropped.
E. The command would drop the disk group, ignoring the EXCLUDING CONT
ENTS option.
Answer: A
Dropping Disk Groups
DROP DISKGROUP 语句可以删除一个ASM 磁盘组,可选择的,也包括其中的文件。可以指
定INCLUDING CONTENTS 删除磁盘组中的文件。默认值是EXCLUDING CONTENTS,which
provides syntactic consistency 同时阻止删除含有文件的磁盘组。
ASM 实例必须已经启动,磁盘组已经安装,并且没有打开的文件,这样DROP DISKGROUP
才能成功。在删除掉磁盘组之前,语句不会返回。

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