从oracle 11gR2版本,amdu工具可以直接使用,不需要单独下载

命令放在$ORACLE_HOME/bin目录下
amdu 运行后输出的格式如下 会在当前目录下生成个以amdu+日期格式的文件夹
在这个文件夹下,会生成report.txt文件,report.txt文件格式如下:
********************************* DISCOVERY **********************************
----------------------------- DISK REPORT N0001 ------------------------------
Disk Path: /dev/rhdiskpower0
Unique Disk ID:
Disk Label:
Physical Sector Size: 512 bytes
Disk Size: 46462 megabytes
Group Name: DATADG
Disk Name: DATADG_0000
Failure Group Name: DATADG_0000
Disk Number: 0
Header Status: 3
Disk Creation Time: 2010/08/05 16:12:08.084000
Last Mount Time: 2010/08/06 11:55:54.262000
Compatibility Version: 0x0b200000(11020000)
Disk Sector Size: 512 bytes
Disk size in AUs: 46462 AUs
Group Redundancy: 1
Metadata Block Size: 4096 bytes
AU Size: 1048576 bytes
Stride: 113792 AUs
Group Creation Time: 2010/08/05 16:12:07.766000
File 1 Block 1 location: AU 2
OCR Present: NO
----------------------------- DISK REPORT N0002 ------------------------------
Disk Path: /dev/rhdiskpower1
Unique Disk ID:
Disk Label:
Physical Sector Size: 512 bytes
Disk Size: 46462 megabytes
** NOT A VALID ASM DISK HEADER. BAD VALUE IN FIELD blksize_kfdhdb **
----------------------------- DISK REPORT N0003 ------------------------------
Disk Path: /dev/rhdiskpower2
Unique Disk ID:
Disk Label:
Physical Sector Size: 512 bytes
Disk Size: 46462 megabytes
** NOT A VALID ASM DISK HEADER. BAD VALUE IN FIELD blksize_kfdhdb **
******************************* END OF REPORT ********************************