kfbh.type: 1 ; 0x002: KFBTYP_DISKHEAD
kfbh.datfmt: 1 ; 0x003: 0x01
kfbh.block.blk: 0 ; 0x004: T=0 NUMB=0x0
kfbh.block.obj: 2147483648 ; 0x008: TYPE=0x8 NUMB=0x0
kfbh.check: 883602253 ; 0x00c: 0x34aab34d
kfbh.fcn.base: 0 ; 0x010: 0x00000000
kfbh.fcn.wrap: 0 ; 0x014: 0x00000000
kfbh.spare1: 0 ; 0x018: 0x00000000
kfbh.spare2: 0 ; 0x01c: 0x00000000
--#########################################################################
4.使用kfed merge恢复asm disk header
rac1-> dd if=/dev/zero of=/dev/raw/raw1 bs=4096 count=1
1+0 records in
1+0 records out
rac1-> kfed read /dev/raw/raw1 blknum=0
kfbh.endian: 0 ; 0x000: 0x00
kfbh.hard: 0 ; 0x001: 0x00
kfbh.type: 0 ; 0x002: KFBTYP_INVALID
kfbh.datfmt: 0 ; 0x003: 0x00
kfbh.block.blk: 0 ; 0x004: T=0 NUMB=0x0
kfbh.check: 0 ; 0x00c: 0x00000000
kfbh.fcn.base: 0 ; 0x010: 0x00000000
kfbh.fcn.wrap: 0 ; 0x014: 0x00000000
kfbh.spare1: 0 ; 0x018: 0x00000000
kfbh.spare2: 0 ; 0x01c: 0x00000000
http://www.itpub.net/thread-1597605-1-1.html 具体信息参考这里：
[oracle@rac1 ~]$ kfod disk=all
--------------------------------------------------------------------------------
Disk Size Path User Group
================================================================================
1: 10236 Mb ORCL:VOL1
2: 10236 Mb ORCL:VOL2
--------------------------------------------------------------------------------
ORACLE_SID ORACLE_HOME
================================================================================
+ASM /orac/orahome/app/11.2.0/grid
[oracle@rac1 ~]$