Oracle兵器谱上古神器之-KFED(二)
/ksum Update checksum before each write [CHKSUM=YES/NO]
cn/t Count of AUs to process [CNT=number]
d/ev ASM device to examine or update [DEV=string]
o/p KFED operation type [OP=READ/WRITE/MERGE/REPAIR
/NEW/FORM/FIND/STRUCT]
/NEW/FORM/FIND/STRUCT]
p/rovnm Name for provisioning purposes [PROVNM=string]
s/eek AU number to seek to [SEEK=number]
te/xt File name for translated block text [TEXT=string]
ty/pe ASM metadata block type number [TYPE=number]
2. KFED查看header信息
这个工具可以在ASM没有启动的情况下使用，因此我们就关闭ASM验证下到底可不可以。
[oracle@gtser1 lib]$ export ORACLE_SID=+ASM
[oracle@gtser1 lib]$ sqlplus "/as sysdba"
SQL*Plus: Release 10.2.0.5.0 - Production on Sat Mar 2 16:24:14 2013
Copyright (c) 1982, 2010, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> shutdown immediate;
ASM diskgroups dismounted
ASM instance shutdown
SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release
10.2.0.5.0 - 64bit Production
10.2.0.5.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing
options
options
在10.2.0.5版本之前header信息是没有额外保护的，而且header信息非
常容易损坏，好在之后版本做了额外的备份保护，我们后面会描述到。
常容易损坏，好在之后版本做了额外的备份保护，我们后面会描述到。
使用KFED查看header信息：
[oracle@gtser1 lib]$ kfed read /dev/raw/raw1
kfbh.endian: 1 ; 0x000: 0x01
kfbh.hard: 130 ; 0x001: 0x82
kfbh.type: 1 ; 0x002: KFBTYP_DISKHEAD--表示这是HEAD数据信息
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: 3544975665 ; 0x00c: 0xd34c0931
kfbh.fcn.base: 48 ; 0x010: 0x00000030
kfbh.fcn.wrap: 0 ; 0x014: 0x00000000
kfbh.spare1: 0 ; 0x018: 0x00000000
kfbh.spare2: 0 ; 0x01c: 0x00000000
kfdhdb.driver.provstr: ORCLDISK ; 0x000: length=8
kfdhdb.driver.reserved[0]: 0 ; 0x008: 0x00000000
kfdhdb.driver.reserved[1]: 0 ; 0x00c: 0x00000000
kfdhdb.driver.reserved[2]: 0 ; 0x010: 0x00000000
kfdhdb.driver.reserved[3]: 0 ; 0x014: 0x00000000
kfdhdb.driver.reserved[4]: 0 ; 0x018: 0x00000000
kfdhdb.driver.reserved[5]: 0 ; 0x01c: 0x00000000
kfdhdb.compat: 168820736 ; 0x020: 0x0a100000
kfdhdb.dsknum: 0 ; 0x024: 0x0000--disk号
kfdhdb.grptyp: 1 ; 0x026: KFDGTP_EXTERNAL--DG冗余类型
kfdhdb.hdrsts: 3 ; 0x027: KFDHDR_MEMBER--disk status信息
kfdhdb.dskname: DISK1 ; 0x028: length=5--disk name
kfdhdb.grpname: DATA01 ; 0x048: length=6--dg name
kfdhdb.fgname: DISK1 ; 0x068: length=5--fg name
kfdhdb.capname: ; 0x088: length=0
kfdhdb.crestmp.hi: 32983791 ; 0x0a8: HOUR=0xf DAYS=0x17
MNTH=0x2 YEAR=0x7dd
kfdhdb.crestmp.lo: 2630343680 ; 0x0ac: USEC=0x0 MSEC=0x1f7
SECS=0xc MINS=0x27
SECS=0xc MINS=0x27
kfdhdb.mntstmp.hi: 32984143 ; 0x0b0: HOUR=0xf DAYS=0x2
MNTH=0x3 YEAR=0x7dd
MNTH=0x3 YEAR=0x7dd
kfdhdb.mntstmp.lo: 1001101312 ; 0x0b4: USEC=0x0 MSEC=
0x2e6 SECS=0x3a MINS=0xe
0x2e6 SECS=0x3a MINS=0xe
kfdhdb.secsize: 512 ; 0x0b8: 0x0200--sector size
kfdhdb.blksize: 4096 ; 0x0ba: 0x1000--blo