oracle 10g asm 推出了kfod 工具，可以查看asm磁盘组和asm实例的信息

[oracle@p650:/oracle/app/oracle]$kfod -h
_asm_a/llow_only_raw_disks              KFOD allow only raw devices [_asm_allow_only_raw_disks=TRUE/(FALSE)]
_asm_l/ibraries         ASM Libraries[_asm_libraries='lib1','lib2',...]
_asms/id                ASM Instance[_asmsid=sid]
a/sm_diskstring         ASM Diskstring [asm_diskstring='discoverystring', 'discoverystring' ...]
d/isks          Disks to discover [disks=raw,asm,all]
g/roup          Group discover [group=controlfile]
n/ohdr          KFOD header suppression [nohdr=TRUE/(FALSE)]
o/p             KFOD options type [OP=DISKS/GROUPS/ALL]
p/file          ASM parameter file [pfile='parameterfile']
s/tatus         Include disk header status [status=TRUE/(FALSE)]
v/erbose                KFOD verbose errors [verbose=TRUE/(FALSE)]
[oracle@p650:/oracle/app/oracle]$

比如我们查看asm磁盘组信息

[oracle@p650:/oracle/app/oracle]$kfod disks=all status=true
--------------------------------------------------------------------------------
 Disk          Size Header    Path     
================================================================================
   1:       1024 Mb FOREIGN   /dev/rhdisk4
   2:       1024 Mb FOREIGN   /dev/rhdisk5
   3:       1024 Mb FOREIGN   /dev/rhdisk6
   4:      30720 Mb MEMBER    /dev/rhdisk7
   5:       2048 Mb CANDIDATE /dev/rhdisk8
   6:       3072 Mb CANDIDATE /dev/rhdisk9