ocp-143

QUESTION NO: 143

As the DBA, you run the following query on your ASM instance. What is the implication of the results of

the query? (Choose two.)

SQL> select group_number, name, state from v$ASM_DISKGROUP;

GROUP_NUMBER NAME STATE

0 DGROUP1 DISMOUNTED

2 DGROUP2 MOUNTED

3 DGROUP3 MOUNTED

A. The DGROUP1 disk group was unmounted by another DBA.

B. A datafile has been lost, causing the ASM disk group DGROUP1 to go into the DISMOUNTED state

C. One of the redundant disks (DGROUP1) has been lost in a disk group.

D. This query has no meaning in an ASM instance.

E. A disk associated with a disk group was discovered after the ASM instance initially opened.

Answer: A,E

作为一个DBA，你运行以下的ASM实例查询。查询结果的含义是什么？

SQL> select group_number, name, state from v$ASM_DISKGROUP;

GROUP_NUMBER NAME STATE

0 DGROUP1 DISMOUNTED

2 DGROUP2 MOUNTED

3 DGROUP3 MOUNTED

SQL>从ASM磁盘组选择组号，姓名，状态

0 磁盘组1卸载

2 磁盘组2挂载

3 磁盘组3挂载

A.由另一DBA卸载DGROUP1磁盘组

E.ASM实例最初打开后发现一个关联磁盘组的磁盘。

显然，出于某种原因， 当ASM实例

启动时磁盘组1未挂载或者在 ASM实例启动后磁盘丢失然后又出现了（也许是硬件故障）。 ASM会发现新

的磁盘，即使在ASM实例打开之后。