Oracle - 11G - 题库337 - 图文(16)

Answer: C

QUESTION NO: 128

What is the default AU size of an ASM disk group? What is the maximum AU size in an ASM disk group? ASM磁盘组的AU默认大小是什么？ ASM磁盘组的最大AU值是多大？

A. 100KB default, 10TB maximum B. 256KB default, 1024MB maximum C. 10MB default, 126PB maximum D. 64KB default, 1EB maximum E. 1MB default, 64MB maximum Answer: E

AU（Allocation units分配单元）在Oracle 10gR2中，ASM AU的缺省单位大小是1M，相应的条带大小是 128K。

在ASM中，可以通过调整asm_ausize隐含参数的大小来进行调整，_asm_stripesize控制相应的条带化参 数。

QUESTION NO: 129

Which initialization parameter in an ASM instance specifies the disk groups to be automatically mounted at instance startup? 哪一个在ASM实例中的初始化参数在实例启动时指定被自动挂载的磁盘组？ A. ASM_DISKMOUNT

B. ASM_DISKGROUP ASM_磁盘组 C. ASM_DISKSTRING D. ASM_MOUNTGROUP Answer: B

QUESTION NO: 130？

When an ASM instance receives a SHUTDOWN NORMAL command, what command does it pass on to all database instances that rely on the ASM instance‘s disk groups? 当ASM实例接收一个正常关闭命令， 它传递什么命令给依赖于ASM实例的磁盘组的所有数据库实例？ A. TRANSACTIONAL B. IMMEDIATE C. ABORT D. NORMAL

E．None of the above

Answer: E

SQL> shutdown normal;

ORA-15097: cannot SHUTDOWN ASM instance with connected client (process 18597) SQL> shutdown immediate;

ORA-15097: cannot SHUTDOWN ASM instance with connected client (process 18597) If you do a normal shutdown of the ASM instance, an error will be returned if any Oracle