Oracle 11g开始,推出了内置的IO测试包，原理和上文提到的Orion工具基本相同。现在是具体使用的例子

SQL> select group_number, name, total_mb, free_mb, total_mb-free_mb used_mb from v$asm_disk_stat;

GROUP_NUMBER NAME                             TOTAL_MB    FREE_MB    USED_MB

------------ ------------------------------ ---------- ---------- ----------

1 DATA_0002                          511999     438029      73970

1 DATA_0003                          511999     438022      73977

2 FRA_0000                           614399     549359      65040

2 FRA_0001                           614399     549357      65042

1 DATA_0000                          511999     437995      74004

1 DATA_0001                          511999     438035      73964

set timing on serveroutput on;

SQL> set timing on serveroutput on;

SQL> declare

2    v_max_iops BINARY_INTEGER;

3    v_max_mbps BINARY_INTEGER;

4    v_act_lat BINARY_INTEGER;

5  begin

6    dbms_resource_manager.CALIBRATE_IO(6,20,v_max_iops,v_max_mbps,v_act_lat);

7    dbms_output.put_line('max iops : ' || v_max_iops );

8    dbms_output.put_line('max mbps : ' || v_max_mbps );

9    dbms_output.put_line('actual latency : ' || v_act_lat );

10  end;

11  /

max iops : 9277

max mbps : 549

actual latency : 20

PROCEDURE CALIBRATE_IO

参数名称                       类型                    输入/输出默认值

------------------------------ ----------------------- ------ --------

NUM_PHYSICAL_DISKS             BINARY_INTEGER          IN     DEFAULT

MAX_LATENCY                    BINARY_INTEGER          IN     DEFAULT

MAX_IOPS                       BINARY_INTEGER          OUT

MAX_MBPS                       BINARY_INTEGER          OUT

ACTUAL_LATENCY                 BINARY_INTEGER          OUT

运行后的结果也可通过查询dba_rsrc_io_calibrate视图实现

SQL> select * from dba_rsrc_io_calibrate;

START_TIME                     END_TIME                         MAX_IOPS   MAX_MBPS  MAX_PMBPS    LATENCY NUM_PHYSICAL_DISKS

------------------------------ ------------------------------ ---------- ---------- ---------- ---------- ------------------

03-7?? -12 09.42.42.414132 é?  03-7?? -12 09.54.10.118080 é?        9277        549        200         20                  6