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主题： [转帖]一次asm磁盘头部信息丢失故障

derek

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发表于：

2011-10-27 13:05:57 | [全部帖] [楼主帖]

楼主

一、首先介绍下kfed这个工具配置
kfed这个工具默认是没有编译的，需要手工编译

cd $ORACLE_HOME/rdbms/lib
make -f ins_rdbms.mk ikfed

使用kfed dump出裸设备头信息，还是比较容易看懂对应的内容的

$kfed read /dev/drsk/c4t6001438007F3072900008000004A0000d0s6 > disk_header6.txt
$cat disk_header6.txt
kfbh.endian:                          0 ; 0x000: 0x00
kfbh.hard:                          130 ; 0x001: 0x82
kfbh.type:                            1 ; 0x002: KFBTYP_DISKHEAD
kfbh.datfmt:                          1 ; 0x003: 0x01
kfbh.block.blk:                       0 ; 0x004: T=0 NUMB=0x0
kfbh.block.obj:              2147483650 ; 0x008: TYPE=0x8 NUMB=0x2
kfbh.check:                  3404284687 ; 0x00c: 0xcae9430f
kfbh.fcn.base:                        0 ; 0x010: 0x00000000
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:                186646528 ; 0x020: 0x0b200000
kfdhdb.dsknum:                        2 ; 0x024: 0x0002
kfdhdb.grptyp:                        2 ; 0x026: KFDGTP_NORMAL
kfdhdb.hdrsts:                        3 ; 0x027: KFDHDR_MEMBER
kfdhdb.dskname:         DSMDB_DATA_0002 ; 0x028: length=15
kfdhdb.grpname:              DSMDB_DATA ; 0x048: length=10
kfdhdb.fgname:          DSMDB_DATA_0002 ; 0x068: length=15
kfdhdb.capname:                         ; 0x088: length=0
kfdhdb.crestmp.hi:             32953839 ; 0x0a8: HOUR=0xf DAYS=0xf MNTH=0x5 YEAR=0x7db
kfdhdb.crestmp.lo:           3104781312 ; 0x0ac: USEC=0x0 MSEC=0x3cd SECS=0x10 MINS=0x2e
kfdhdb.mntstmp.hi:             32958032 ; 0x0b0: HOUR=0x10 DAYS=0x12 MNTH=0x9 YEAR=0x7db
kfdhdb.mntstmp.lo:            300389376 ; 0x0b4: USEC=0x0 MSEC=0x1e5 SECS=0x1e MINS=0x4
kfdhdb.secsize:                     512 ; 0x0b8: 0x0200
kfdhdb.blksize:                    4096 ; 0x0ba: 0x1000
kfdhdb.ausize:                  1048576 ; 0x0bc: 0x00100000
kfdhdb.mfact:                    113792 ; 0x0c0: 0x0001bc80
kfdhdb.dsksize:                  307160 ; 0x0c4: 0x0004afd8
kfdhdb.pmcnt:                         4 ; 0x0c8: 0x00000004
kfdhdb.fstlocn:                       1 ; 0x0cc: 0x00000001
kfdhdb.altlocn:                       2 ; 0x0d0: 0x00000002
kfdhdb.f1b1locn:                      2 ; 0x0d4: 0x00000002
kfdhdb.redomirrors[0]:                0 ; 0x0d8: 0x0000
kfdhdb.redomirrors[1]:                0 ; 0x0da: 0x0000
kfdhdb.redomirrors[2]:                0 ; 0x0dc: 0x0000
kfdhdb.redomirrors[3]:                0 ; 0x0de: 0x0000
kfdhdb.dbcompat:              168820736 ; 0x0e0: 0x0a100000
kfdhdb.grpstmp.hi:             32953839 ; 0x0e4: HOUR=0xf DAYS=0xf MNTH=0x5 YEAR=0x7db
kfdhdb.grpstmp.lo:           3104054272 ; 0x0e8: USEC=0x0 MSEC=0x107 SECS=0x10 MINS=0x2e
kfdhdb.vfstart:                       0 ; 0x0ec: 0x00000000
kfdhdb.vfend:                         0 ; 0x0f0: 0x00000000
kfdhdb.spfile:                        0 ; 0x0f4: 0x00000000
kfdhdb.spfflg:                        0 ; 0x0f8: 0x00000000
kfdhdb.ub4spare[0]:                   0 ; 0x0fc: 0x00000000
kfdhdb.ub4spare[1]:                   0 ; 0x100: 0x00000000
kfdhdb.ub4spare[2]:                   0 ; 0x104: 0x00000000
kfdhdb.ub4spare[3]:                   0 ; 0x108: 0x00000000
kfdhdb.ub4spare[4]:                   0 ; 0x10c: 0x00000000
kfdhdb.ub4spare[5]:                   0 ; 0x110: 0x00000000
kfdhdb.ub4spare[6]:                   0 ; 0x114: 0x00000000
kfdhdb.ub4spare[7]:                   0 ; 0x118: 0x00000000
kfdhdb.ub4spare[8]:                   0 ; 0x11c: 0x00000000
kfdhdb.ub4spare[9]:                   0 ; 0x120: 0x00000000
kfdhdb.ub4spare[10]:                  0 ; 0x124: 0x00000000
kfdhdb.ub4spare[11]:                  0 ; 0x128: 0x00000000
kfdhdb.ub4spare[12]:                  0 ; 0x12c: 0x00000000
kfdhdb.ub4spare[13]:                  0 ; 0x130: 0x00000000
kfdhdb.ub4spare[14]:                  0 ; 0x134: 0x00000000
kfdhdb.ub4spare[15]:                  0 ; 0x138: 0x00000000
kfdhdb.ub4spare[16]:                  0 ; 0x13c: 0x00000000
kfdhdb.ub4spare[17]:                  0 ; 0x140: 0x00000000
kfdhdb.ub4spare[18]:                  0 ; 0x144: 0x00000000
kfdhdb.ub4spare[19]:                  0 ; 0x148: 0x00000000
kfdhdb.ub4spare[20]:                  0 ; 0x14c: 0x00000000
kfdhdb.ub4spare[21]:                  0 ; 0x150: 0x00000000
kfdhdb.ub4spare[22]:                  0 ; 0x154: 0x00000000
kfdhdb.ub4spare[23]:                  0 ; 0x158: 0x00000000
kfdhdb.ub4spare[24]:                  0 ; 0x15c: 0x00000000
kfdhdb.ub4spare[25]:                  0 ; 0x160: 0x00000000
kfdhdb.ub4spare[26]:                  0 ; 0x164: 0x00000000
kfdhdb.ub4spare[27]:                  0 ; 0x168: 0x00000000
kfdhdb.ub4spare[28]:                  0 ; 0x16c: 0x00000000
kfdhdb.ub4spare[29]:                  0 ; 0x170: 0x00000000
kfdhdb.ub4spare[30]:                  0 ; 0x174: 0x00000000
kfdhdb.ub4spare[31]:                  0 ; 0x178: 0x00000000
kfdhdb.ub4spare[32]:                  0 ; 0x17c: 0x00000000
kfdhdb.ub4spare[33]:                  0 ; 0x180: 0x00000000
kfdhdb.ub4spare[34]:                  0 ; 0x184: 0x00000000
kfdhdb.ub4spare[35]:                  0 ; 0x188: 0x00000000
kfdhdb.ub4spare[36]:                  0 ; 0x18c: 0x00000000
kfdhdb.ub4spare[37]:                  0 ; 0x190: 0x00000000
kfdhdb.ub4spare[38]:                  0 ; 0x194: 0x00000000
kfdhdb.ub4spare[39]:                  0 ; 0x198: 0x00000000
kfdhdb.ub4spare[40]:                  0 ; 0x19c: 0x00000000
kfdhdb.ub4spare[41]:                  0 ; 0x1a0: 0x00000000
kfdhdb.ub4spare[42]:                  0 ; 0x1a4: 0x00000000
kfdhdb.ub4spare[43]:                  0 ; 0x1a8: 0x00000000
kfdhdb.ub4spare[44]:                  0 ; 0x1ac: 0x00000000
kfdhdb.ub4spare[45]:                  0 ; 0x1b0: 0x00000000
kfdhdb.ub4spare[46]:                  0 ; 0x1b4: 0x00000000
kfdhdb.ub4spare[47]:                  0 ; 0x1b8: 0x00000000
kfdhdb.ub4spare[48]:                  0 ; 0x1bc: 0x00000000
kfdhdb.ub4spare[49]:                  0 ; 0x1c0: 0x00000000
kfdhdb.ub4spare[50]:                  0 ; 0x1c4: 0x00000000
kfdhdb.ub4spare[51]:                  0 ; 0x1c8: 0x00000000
kfdhdb.ub4spare[52]:                  0 ; 0x1cc: 0x00000000
kfdhdb.ub4spare[53]:                  0 ; 0x1d0: 0x00000000
kfdhdb.acdb.aba.seq:                  0 ; 0x1d4: 0x00000000
kfdhdb.acdb.aba.blk:                  0 ; 0x1d8: 0x00000000
kfdhdb.acdb.ents:                     0 ; 0x1dc: 0x0000
kfdhdb.acdb.ub2spare:                 0 ; 0x1de: 0x0000

二、asm磁盘丢失故障描述
故障环境描述：
操作系统：solaris 10
oracle组件：oracle 11g r2 rac
阵列存储：asm
故障描述：
2011-09-18，接到领导电话说：湖南数据库客户端连不上数据库，需要进行问题处理。
故障检查：
1）检查客户端tnsnames.ora文件，配置没有问题。
2）检查数据库crs服务，发现节点172.20.1.6有很多服务没有起来，于是尝试重启crs。在启动的过程中发现磁盘组ora_data_dg启动失败，报错显示asm disk "6" 丢失。
3）经常检查确认 disk "6" 在系统和阵列存储上都没有问题，可读可写可操作。

启动crs服务时，asm的报错信息如下：
节点 172.20.1.6

-bash-3.00$ crs_start -all
CRS-5702: Resource 'ora.CRS.dg' is already running on 'dsmdb1'
CRS-5702: Resource 'ora.DSMDB_DATA.dg' is already running on 'dsmdb1'
CRS-5702: Resource 'ora.FRA.dg' is already running on 'dsmdb1'
CRS-5702: Resource 'ora.asm' is already running on 'dsmdb1'
CRS-5702: Resource 'ora.asm' is already running on 'dsmdb1'
CRS-2501: Resource 'ora.gsd' is disabled
CRS-5702: Resource 'ora.ons' is already running on 'dsmdb1'
CRS-5702: Resource 'ora.asm' is already running on 'dsmdb2'
CRS-2501: Resource 'ora.gsd' is disabled
CRS-5702: Resource 'ora.ons' is already running on 'dsmdb2'
CRS-2501: Resource 'ora.gsd' is disabled
CRS-5702: Resource 'ora.net1.network' is already running on 'dsmdb1'
CRS-5702: Resource 'ora.ons' is already running on 'dsmdb1'
CRS-5702: Resource 'ora.registry.acfs' is already running on 'dsmdb1'
Attempting to start `ora.gns.vip` on member `dsmdb2`
Attempting to start `ora.ORA_DATA_DG.dg` on member `dsmdb2`
Attempting to start `ora.oc4j` on member `dsmdb2`
Attempting to start `ora.cvu` on member `dsmdb2`
Start of `ora.cvu` on member `dsmdb2` succeeded.
Start of `ora.gns.vip` on member `dsmdb2` succeeded.
Attempting to start `ora.gns` on member `dsmdb2`
Start of `ora.gns` on member `dsmdb2` succeeded.
Attempting to start `ora.dsmdb2.vip` on member `dsmdb2`
Attempting to start `ora.scan1.vip` on member `dsmdb1`
Attempting to start `ora.scan2.vip` on member `dsmdb2`
Attempting to start `ora.scan3.vip` on member `dsmdb1`
Start of `ora.scan2.vip` on member `dsmdb2` succeeded.
Attempting to start `ora.LISTENER_SCAN2.lsnr` on member `dsmdb2`
Start of `ora.scan1.vip` on member `dsmdb1` succeeded.
Attempting to start `ora.LISTENER_SCAN1.lsnr` on member `dsmdb1`
Start of `ora.dsmdb2.vip` on member `dsmdb2` succeeded.
Attempting to start `ora.LISTENER.lsnr` on member `dsmdb2`
Start of `ora.scan3.vip` on member `dsmdb1` succeeded.
Attempting to start `ora.LISTENER_SCAN3.lsnr` on member `dsmdb1`
------------------------------------------------------------------------------------------
CRS-5017: The resource action "ora.ORA_DATA_DG.dg start" encountered the following error: |
ORA-15032: not all alterations performed                             |
ORA-15040: diskgroup is incomplete                                 |
ORA-15042: ASM disk "6" is missing from group number "4"                     |
------------------------------------------------------------------------------------------
Start of `ora.ORA_DATA_DG.dg` on member `dsmdb2` failed.
Attempting to stop `ora.ORA_DATA_DG.dg` on member `dsmdb2`
Stop of `ora.ORA_DATA_DG.dg` on member `dsmdb2` succeeded.
Start of `ora.LISTENER_SCAN3.lsnr` on member `dsmdb1` succeeded.
Attempting to start `ora.dsmdb.db` on member `dsmdb2`
Start of `ora.LISTENER_SCAN1.lsnr` on member `dsmdb1` succeeded.
Start of `ora.LISTENER.lsnr` on member `dsmdb2` succeeded.
Start of `ora.LISTENER_SCAN2.lsnr` on member `dsmdb2` succeeded.
Start of `ora.oc4j` on member `dsmdb2` succeeded.
-----------------------------------------------------------------------------------------
CRS-5017: The resource action "ora.dsmdb.db start" encountered the following error:     |
ORA-01157: cannot identify/lock data file 6 - see DBWR trace file                 |
ORA-01110: data file 6: '+ORA_DATA_DG/dsmdb/statis_tb01.dbf'                |
-----------------------------------------------------------------------------------------
Start of `ora.dsmdb.db` on member `dsmdb2` failed.
Attempting to stop `ora.dsmdb.db` on member `dsmdb2`
Stop of `ora.dsmdb.db` on member `dsmdb2` succeeded.
CRS-2632: There are no more servers to try to place resource 'ora.dsmdb.db' on that would satisfy its placement policy
Attempting to start `ora.dsmdb1.vip` on member `dsmdb1`
Start of `ora.dsmdb1.vip` on member `dsmdb1` succeeded.
Attempting to start `ora.LISTENER.lsnr` on member `dsmdb1`
Start of `ora.LISTENER.lsnr` on member `dsmdb1` succeeded.
Attempting to start `ora.ORA_DATA_DG.dg` on member `dsmdb1`
CRS-5017: The resource action "ora.ORA_DATA_DG.dg start" encountered the following error:
ORA-15032: not all alterations performed
ORA-15040: diskgroup is incomplete
ORA-15042: ASM disk "6" is missing from group number "4"
Start of `ora.ORA_DATA_DG.dg` on member `dsmdb1` failed.
Attempting to stop `ora.ORA_DATA_DG.dg` on member `dsmdb1`
Stop of `ora.ORA_DATA_DG.dg` on member `dsmdb1` succeeded.
CRS-0223: Resource 'ora.CRS.dg' has placement error.
CRS-0223: Resource 'ora.DSMDB_DATA.dg' has placement error.
CRS-0223: Resource 'ora.FRA.dg' has placement error.
CRS-0223: Resource 'ora.asm' has placement error.
CRS-0215: Could not start resource 'ora.dsmdb.db 1 1'.
CRS-0223: Resource 'ora.dsmdb.db 2 1' has placement error.
CRS-0223: Resource 'ora.dsmdb1.ASM1.asm' has placement error.
CRS-2660: Resource 'ora.dsmdb1.gsd' or all of its instances are disabled
CRS-0223: Resource 'ora.dsmdb1.ons' has placement error.
CRS-0223: Resource 'ora.dsmdb2.ASM2.asm' has placement error.
CRS-2660: Resource 'ora.dsmdb2.gsd' or all of its instances are disabled
CRS-0223: Resource 'ora.dsmdb2.ons' has placement error.
CRS-2660: Resource 'ora.gsd' or all of its instances are disabled
CRS-0223: Resource 'ora.net1.network' has placement error.
CRS-0223: Resource 'ora.ons' has placement error.
CRS-0223: Resource 'ora.registry.acfs' has placement error.
==============================================================

下面是alert日志摘要信息如下：
节点172.20.1.6

SQL> ALTER DISKGROUP ORA_DATA_DG MOUNT
NOTE: cache registered group ORA_DATA_DG number=4 incarn=0x6cf88256
NOTE: cache began mount (first) of group ORA_DATA_DG number=4 incarn=0x6cf88256
NOTE: Assigning number (4,21) to disk (/dev/rdsk/c4t6001438007F307290000900000360000d0s6)
NOTE: Assigning number (4,20) to disk (/dev/rdsk/c4t6001438007F307290000900000320000d0s6)
NOTE: Assigning number (4,19) to disk (/dev/rdsk/c4t6001438007F3072900009000002E0000d0s6)
NOTE: Assigning number (4,18) to disk (/dev/rdsk/c4t6001438007F307290000900000260000d0s6)
NOTE: Assigning number (4,17) to disk (/dev/rdsk/c4t6001438007F307290000900000220000d0s6)
NOTE: Assigning number (4,16) to disk (/dev/rdsk/c4t6001438007F3072900009000001E0000d0s6)
NOTE: Assigning number (4,15) to disk (/dev/rdsk/c4t6001438007F307290000900000120000d0s6)
NOTE: Assigning number (4,14) to disk (/dev/rdsk/c4t6001438007F3072900009000000E0000d0s6)
NOTE: Assigning number (4,13) to disk (/dev/rdsk/c4t6001438007F307290000900000060000d0s6)
NOTE: Assigning number (4,12) to disk (/dev/rdsk/c4t6001438007F3072900008000006E0000d0s6)
NOTE: Assigning number (4,11) to disk (/dev/rdsk/c4t6001438007F3072900008000005E0000d0s6)
NOTE: Assigning number (4,10) to disk (/dev/rdsk/c4t6001438007F3072900008000004E0000d0s6)
NOTE: Assigning number (4,9) to disk (/dev/rdsk/c4t6001438007F3072900008000003E0000d0s6)
NOTE: Assigning number (4,8) to disk (/dev/rdsk/c4t6001438007F307290000800000360000d0s6)
NOTE: Assigning number (4,7) to disk (/dev/rdsk/c4t6001438007F307290000800000320000d0s6)
NOTE: Assigning number (4,5) to disk (/dev/rdsk/c4t6001438007F3072900008000002E0000d0s6)
NOTE: Assigning number (4,4) to disk (/dev/rdsk/c4t6001438007F307290000800000260000d0s6)
NOTE: Assigning number (4,3) to disk (/dev/rdsk/c4t6001438007F307290000800000220000d0s6)
NOTE: Assigning number (4,2) to disk (/dev/rdsk/c4t6001438007F3072900008000001E0000d0s6)
NOTE: Assigning number (4,1) to disk (/dev/rdsk/c4t6001438007F3072900008000001A0000d0s6)
NOTE: Assigning number (4,0) to disk (/dev/rdsk/c4t6001438007F3072900008000000E0000d0s6)
Sun Sep 18 16:07:20 2011
NOTE: start heartbeating (grp 4)
GMON querying group 4 at 30 for pid 24, osid 9107
NOTE: Assigning number (4,6) to disk ()
GMON querying group 4 at 31 for pid 24, osid 9107
NOTE: cache dismounting (clean) group 4/0x6CF88256 (ORA_DATA_DG)
NOTE: dbwr not being msg'd to dismount
NOTE: lgwr not being msg'd to dismount
NOTE: cache dismounted group 4/0x6CF88256 (ORA_DATA_DG)
NOTE: cache ending mount (fail) of group ORA_DATA_DG number=4 incarn=0x6cf88256
NOTE: cache deleting context for group ORA_DATA_DG 4/0x6cf88256
GMON dismounting group 4 at 32 for pid 24, osid 9107
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
NOTE: Disk  in mode 0x8 marked for de-assignment
ERROR: diskgroup ORA_DATA_DG was not mounted
ORA-15032: not all alterations performed
ORA-15040: diskgroup is incomplete
ORA-15042: ASM disk "6" is missing from group number "4"
ERROR: ALTER DISKGROUP ORA_DATA_DG MOUNT
Sun Sep 18 16:07:28 2011
ASM Health Checker found 1 new failures

诊断确定：
引起问题的原因可能是asm磁盘组的头部记录disk "6"信息发生了改变，asm磁盘组在启动时会找disk "6"改变之前的信息发现不到，磁盘组启动时报错磁盘"6"丢失。

时间：

2011-09-18

三、使用kfed备份磁盘头部信息

1）使用kfed获取磁盘组ORA_DATA_DG number (4,6) /dev/drsk/c4t6001438007F3072900008000004A0000d0s6头部信息

$ kfed read /dev/drsk/c4t6001438007F3072900008000004A0000d0s6 > disk_header6.txt
$ cat disk_header6.txt
kfbh.endian:                          0 ; 0x000: 0x00
kfbh.hard:                          130 ; 0x001: 0x82
kfbh.type:                            1 ; 0x002: KFBTYP_DISKHEAD
kfbh.datfmt:                          1 ; 0x003: 0x01
kfbh.block.blk:                       0 ; 0x004: T=0 NUMB=0x0
kfbh.block.obj:              2147483650 ; 0x008: TYPE=0x8 NUMB=0x2
kfbh.check:                  3404284687 ; 0x00c: 0xcae9430f
kfbh.fcn.base:                        0 ; 0x010: 0x00000000
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:                186646528 ; 0x020: 0x0b200000
kfdhdb.dsknum:                        2 ; 0x024: 0x0002
kfdhdb.grptyp:                        2 ; 0x026: KFDGTP_NORMAL
kfdhdb.hdrsts:                        3 ; 0x027: KFDHDR_MEMBER
kfdhdb.dskname:         DSMDB_DATA_0002 ; 0x028: length=15
kfdhdb.grpname:              DSMDB_DATA ; 0x048: length=10
kfdhdb.fgname:          DSMDB_DATA_0002 ; 0x068: length=15
kfdhdb.capname:                         ; 0x088: length=0
kfdhdb.crestmp.hi:             32953839 ; 0x0a8: HOUR=0xf DAYS=0xf MNTH=0x5 YEAR=0x7db
kfdhdb.crestmp.lo:           3104781312 ; 0x0ac: USEC=0x0 MSEC=0x3cd SECS=0x10 MINS=0x2e
kfdhdb.mntstmp.hi:             32958032 ; 0x0b0: HOUR=0x10 DAYS=0x12 MNTH=0x9 YEAR=0x7db
kfdhdb.mntstmp.lo:            300389376 ; 0x0b4: USEC=0x0 MSEC=0x1e5 SECS=0x1e MINS=0x4
kfdhdb.secsize:                     512 ; 0x0b8: 0x0200
kfdhdb.blksize:                    4096 ; 0x0ba: 0x1000
kfdhdb.ausize:                  1048576 ; 0x0bc: 0x00100000
kfdhdb.mfact:                    113792 ; 0x0c0: 0x0001bc80
kfdhdb.dsksize:                  307160 ; 0x0c4: 0x0004afd8
kfdhdb.pmcnt:                         4 ; 0x0c8: 0x00000004
kfdhdb.fstlocn:                       1 ; 0x0cc: 0x00000001
kfdhdb.altlocn:                       2 ; 0x0d0: 0x00000002
kfdhdb.f1b1locn:                      2 ; 0x0d4: 0x00000002
kfdhdb.redomirrors[0]:                0 ; 0x0d8: 0x0000
kfdhdb.redomirrors[1]:                0 ; 0x0da: 0x0000
kfdhdb.redomirrors[2]:                0 ; 0x0dc: 0x0000
kfdhdb.redomirrors[3]:                0 ; 0x0de: 0x0000
kfdhdb.dbcompat:              168820736 ; 0x0e0: 0x0a100000
kfdhdb.grpstmp.hi:             32953839 ; 0x0e4: HOUR=0xf DAYS=0xf MNTH=0x5 YEAR=0x7db
kfdhdb.grpstmp.lo:           3104054272 ; 0x0e8: USEC=0x0 MSEC=0x107 SECS=0x10 MINS=0x2e
kfdhdb.vfstart:                       0 ; 0x0ec: 0x00000000
kfdhdb.vfend:                         0 ; 0x0f0: 0x00000000
kfdhdb.spfile:                        0 ; 0x0f4: 0x00000000
kfdhdb.spfflg:                        0 ; 0x0f8: 0x00000000
kfdhdb.ub4spare[0]:                   0 ; 0x0fc: 0x00000000
kfdhdb.ub4spare[1]:                   0 ; 0x100: 0x00000000
kfdhdb.ub4spare[2]:                   0 ; 0x104: 0x00000000
kfdhdb.ub4spare[3]:                   0 ; 0x108: 0x00000000
kfdhdb.ub4spare[4]:                   0 ; 0x10c: 0x00000000
kfdhdb.ub4spare[5]:                   0 ; 0x110: 0x00000000
kfdhdb.ub4spare[6]:                   0 ; 0x114: 0x00000000
kfdhdb.ub4spare[7]:                   0 ; 0x118: 0x00000000
kfdhdb.ub4spare[8]:                   0 ; 0x11c: 0x00000000
kfdhdb.ub4spare[9]:                   0 ; 0x120: 0x00000000
kfdhdb.ub4spare[10]:                  0 ; 0x124: 0x00000000
kfdhdb.ub4spare[11]:                  0 ; 0x128: 0x00000000
kfdhdb.ub4spare[12]:                  0 ; 0x12c: 0x00000000
kfdhdb.ub4spare[13]:                  0 ; 0x130: 0x00000000
kfdhdb.ub4spare[14]:                  0 ; 0x134: 0x00000000
kfdhdb.ub4spare[15]:                  0 ; 0x138: 0x00000000
kfdhdb.ub4spare[16]:                  0 ; 0x13c: 0x00000000
kfdhdb.ub4spare[17]:                  0 ; 0x140: 0x00000000
kfdhdb.ub4spare[18]:                  0 ; 0x144: 0x00000000
kfdhdb.ub4spare[19]:                  0 ; 0x148: 0x00000000
kfdhdb.ub4spare[20]:                  0 ; 0x14c: 0x00000000
kfdhdb.ub4spare[21]:                  0 ; 0x150: 0x00000000
kfdhdb.ub4spare[22]:                  0 ; 0x154: 0x00000000
kfdhdb.ub4spare[23]:                  0 ; 0x158: 0x00000000
kfdhdb.ub4spare[24]:                  0 ; 0x15c: 0x00000000
kfdhdb.ub4spare[25]:                  0 ; 0x160: 0x00000000
kfdhdb.ub4spare[26]:                  0 ; 0x164: 0x00000000
kfdhdb.ub4spare[27]:                  0 ; 0x168: 0x00000000
kfdhdb.ub4spare[28]:                  0 ; 0x16c: 0x00000000
kfdhdb.ub4spare[29]:                  0 ; 0x170: 0x00000000
kfdhdb.ub4spare[30]:                  0 ; 0x174: 0x00000000
kfdhdb.ub4spare[31]:                  0 ; 0x178: 0x00000000
kfdhdb.ub4spare[32]:                  0 ; 0x17c: 0x00000000
kfdhdb.ub4spare[33]:                  0 ; 0x180: 0x00000000
kfdhdb.ub4spare[34]:                  0 ; 0x184: 0x00000000
kfdhdb.ub4spare[35]:                  0 ; 0x188: 0x00000000
kfdhdb.ub4spare[36]:                  0 ; 0x18c: 0x00000000
kfdhdb.ub4spare[37]:                  0 ; 0x190: 0x00000000
kfdhdb.ub4spare[38]:                  0 ; 0x194: 0x00000000
kfdhdb.ub4spare[39]:                  0 ; 0x198: 0x00000000
kfdhdb.ub4spare[40]:                  0 ; 0x19c: 0x00000000
kfdhdb.ub4spare[41]:                  0 ; 0x1a0: 0x00000000
kfdhdb.ub4spare[42]:                  0 ; 0x1a4: 0x00000000
kfdhdb.ub4spare[43]:                  0 ; 0x1a8: 0x00000000
kfdhdb.ub4spare[44]:                  0 ; 0x1ac: 0x00000000
kfdhdb.ub4spare[45]:                  0 ; 0x1b0: 0x00000000
kfdhdb.ub4spare[46]:                  0 ; 0x1b4: 0x00000000
kfdhdb.ub4spare[47]:                  0 ; 0x1b8: 0x00000000
kfdhdb.ub4spare[48]:                  0 ; 0x1bc: 0x00000000
kfdhdb.ub4spare[49]:                  0 ; 0x1c0: 0x00000000
kfdhdb.ub4spare[50]:                  0 ; 0x1c4: 0x00000000
kfdhdb.ub4spare[51]:                  0 ; 0x1c8: 0x00000000
kfdhdb.ub4spare[52]:                  0 ; 0x1cc: 0x00000000
kfdhdb.ub4spare[53]:                  0 ; 0x1d0: 0x00000000
kfdhdb.acdb.aba.seq:                  0 ; 0x1d4: 0x00000000
kfdhdb.acdb.aba.blk:                  0 ; 0x1d8: 0x00000000
kfdhdb.acdb.ents:                     0 ; 0x1dc: 0x0000
kfdhdb.acdb.ub2spare:                 0 ; 0x1de: 0x0000

2）获取disk 7的头部信息

$ kfed read /dev/rdsk/c4t6001438007F307290000800000320000d0s6 > disk_header7.txt
$cat disk_header7.txt
kfbh.endian:                          0 ; 0x000: 0x00
kfbh.hard:                          130 ; 0x001: 0x82
kfbh.type:                            1 ; 0x002: KFBTYP_DISKHEAD
kfbh.datfmt:                          1 ; 0x003: 0x01
kfbh.block.blk:                       0 ; 0x004: T=0 NUMB=0x0
kfbh.block.obj:              2147483655 ; 0x008: TYPE=0x8 NUMB=0x7
kfbh.check:                   158480328 ; 0x00c: 0x097237c8
kfbh.fcn.base:                        0 ; 0x010: 0x00000000
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:                186646528 ; 0x020: 0x0b200000
kfdhdb.dsknum:                        7 ; 0x024: 0x0007
kfdhdb.grptyp:                        1 ; 0x026: KFDGTP_EXTERNAL
kfdhdb.hdrsts:                        3 ; 0x027: KFDHDR_MEMBER
kfdhdb.dskname:        ORA_DATA_DG_0007 ; 0x028: length=16
kfdhdb.grpname:             ORA_DATA_DG ; 0x048: length=11
kfdhdb.fgname:         ORA_DATA_DG_0007 ; 0x068: length=16
kfdhdb.capname:                         ; 0x088: length=0
kfdhdb.crestmp.hi:             32956017 ; 0x0a8: HOUR=0x11 DAYS=0x13 MNTH=0x7 YEAR=0x7db
kfdhdb.crestmp.lo:           2311484416 ; 0x0ac: USEC=0x0 MSEC=0x19d SECS=0x1c MINS=0x22
kfdhdb.mntstmp.hi:             32956043 ; 0x0b0: HOUR=0xb DAYS=0x14 MNTH=0x7 YEAR=0x7db
kfdhdb.mntstmp.lo:           3560723456 ; 0x0b4: USEC=0x0 MSEC=0x315 SECS=0x3 MINS=0x35
kfdhdb.secsize:                     512 ; 0x0b8: 0x0200
kfdhdb.blksize:                    4096 ; 0x0ba: 0x1000
kfdhdb.ausize:                  1048576 ; 0x0bc: 0x00100000
kfdhdb.mfact:                    113792 ; 0x0c0: 0x0001bc80
kfdhdb.dsksize:                  307160 ; 0x0c4: 0x0004afd8
kfdhdb.pmcnt:                         4 ; 0x0c8: 0x00000004
kfdhdb.fstlocn:                       1 ; 0x0cc: 0x00000001
kfdhdb.altlocn:                       2 ; 0x0d0: 0x00000002
kfdhdb.f1b1locn:                      0 ; 0x0d4: 0x00000000
kfdhdb.redomirrors[0]:                0 ; 0x0d8: 0x0000
kfdhdb.redomirrors[1]:                0 ; 0x0da: 0x0000
kfdhdb.redomirrors[2]:                0 ; 0x0dc: 0x0000
kfdhdb.redomirrors[3]:                0 ; 0x0de: 0x0000
kfdhdb.dbcompat:              168820736 ; 0x0e0: 0x0a100000
kfdhdb.grpstmp.hi:             32956017 ; 0x0e4: HOUR=0x11 DAYS=0x13 MNTH=0x7 YEAR=0x7db
kfdhdb.grpstmp.lo:           2308081664 ; 0x0e8: USEC=0x0 MSEC=0xa2 SECS=0x19 MINS=0x22
kfdhdb.vfstart:                       0 ; 0x0ec: 0x00000000
kfdhdb.vfend:                         0 ; 0x0f0: 0x00000000
kfdhdb.spfile:                        0 ; 0x0f4: 0x00000000
kfdhdb.spfflg:                        0 ; 0x0f8: 0x00000000
kfdhdb.ub4spare[0]:                   0 ; 0x0fc: 0x00000000
kfdhdb.ub4spare[1]:                   0 ; 0x100: 0x00000000
kfdhdb.ub4spare[2]:                   0 ; 0x104: 0x00000000
kfdhdb.ub4spare[3]:                   0 ; 0x108: 0x00000000
kfdhdb.ub4spare[4]:                   0 ; 0x10c: 0x00000000
kfdhdb.ub4spare[5]:                   0 ; 0x110: 0x00000000
kfdhdb.ub4spare[6]:                   0 ; 0x114: 0x00000000
kfdhdb.ub4spare[7]:                   0 ; 0x118: 0x00000000
kfdhdb.ub4spare[8]:                   0 ; 0x11c: 0x00000000
kfdhdb.ub4spare[9]:                   0 ; 0x120: 0x00000000
kfdhdb.ub4spare[10]:                  0 ; 0x124: 0x00000000
kfdhdb.ub4spare[11]:                  0 ; 0x128: 0x00000000
kfdhdb.ub4spare[12]:                  0 ; 0x12c: 0x00000000
kfdhdb.ub4spare[13]:                  0 ; 0x130: 0x00000000
kfdhdb.ub4spare[14]:                  0 ; 0x134: 0x00000000
kfdhdb.ub4spare[15]:                  0 ; 0x138: 0x00000000
kfdhdb.ub4spare[16]:                  0 ; 0x13c: 0x00000000
kfdhdb.ub4spare[17]:                  0 ; 0x140: 0x00000000
kfdhdb.ub4spare[18]:                  0 ; 0x144: 0x00000000
kfdhdb.ub4spare[19]:                  0 ; 0x148: 0x00000000
kfdhdb.ub4spare[20]:                  0 ; 0x14c: 0x00000000
kfdhdb.ub4spare[21]:                  0 ; 0x150: 0x00000000
kfdhdb.ub4spare[22]:                  0 ; 0x154: 0x00000000
kfdhdb.ub4spare[23]:                  0 ; 0x158: 0x00000000
kfdhdb.ub4spare[24]:                  0 ; 0x15c: 0x00000000
kfdhdb.ub4spare[25]:                  0 ; 0x160: 0x00000000
kfdhdb.ub4spare[26]:                  0 ; 0x164: 0x00000000
kfdhdb.ub4spare[27]:                  0 ; 0x168: 0x00000000
kfdhdb.ub4spare[28]:                  0 ; 0x16c: 0x00000000
kfdhdb.ub4spare[29]:                  0 ; 0x170: 0x00000000
kfdhdb.ub4spare[30]:                  0 ; 0x174: 0x00000000
kfdhdb.ub4spare[31]:                  0 ; 0x178: 0x00000000
kfdhdb.ub4spare[32]:                  0 ; 0x17c: 0x00000000
kfdhdb.ub4spare[33]:                  0 ; 0x180: 0x00000000
kfdhdb.ub4spare[34]:                  0 ; 0x184: 0x00000000
kfdhdb.ub4spare[35]:                  0 ; 0x188: 0x00000000
kfdhdb.ub4spare[36]:                  0 ; 0x18c: 0x00000000
kfdhdb.ub4spare[37]:                  0 ; 0x190: 0x00000000
kfdhdb.ub4spare[38]:                  0 ; 0x194: 0x00000000
kfdhdb.ub4spare[39]:                  0 ; 0x198: 0x00000000
kfdhdb.ub4spare[40]:                  0 ; 0x19c: 0x00000000
kfdhdb.ub4spare[41]:                  0 ; 0x1a0: 0x00000000
kfdhdb.ub4spare[42]:                  0 ; 0x1a4: 0x00000000
kfdhdb.ub4spare[43]:                  0 ; 0x1a8: 0x00000000
kfdhdb.ub4spare[44]:                  0 ; 0x1ac: 0x00000000
kfdhdb.ub4spare[45]:                  0 ; 0x1b0: 0x00000000
kfdhdb.ub4spare[46]:                  0 ; 0x1b4: 0x00000000
kfdhdb.ub4spare[47]:                  0 ; 0x1b8: 0x00000000
kfdhdb.ub4spare[48]:                  0 ; 0x1bc: 0x00000000
kfdhdb.ub4spare[49]:                  0 ; 0x1c0: 0x00000000
kfdhdb.ub4spare[50]:                  0 ; 0x1c4: 0x00000000
kfdhdb.ub4spare[51]:                  0 ; 0x1c8: 0x00000000
kfdhdb.ub4spare[52]:                  0 ; 0x1cc: 0x00000000
kfdhdb.ub4spare[53]:                  0 ; 0x1d0: 0x00000000
kfdhdb.acdb.aba.seq:                  0 ; 0x1d4: 0x00000000
kfdhdb.acdb.aba.blk:                  0 ; 0x1d8: 0x00000000
kfdhdb.acdb.ents:                     0 ; 0x1dc: 0x0000
kfdhdb.acdb.ub2spare:                 0 ; 0x1de: 0x0000
--通过输出对比可以看出disk 6的头部信息变成另一磁盘组DSMDB_DATA成员0002的头部信息

3）使用磁盘头部信息备份恢复disk 6的头部信息
清除磁盘头部信息

$ dd if=/dev/zero of=/dev/drsk/c4t6001438007F3072900008000004A0000d0s6 bs=4096 count=1

查看磁盘头部信息

$ kfed read /dev/rdsk/c4t6001438007F307290000800000320000d0s6

使用备份文件恢复磁盘头部信息

$ kfed read /dev/rdsk/c4t6001438007F307290000800000320000d0s6 text=disk_header6_bk.txt

再次确认磁盘头部信息

$ kfed read /dev/rdsk/c4t6001438007F307290000800000320000d0s6
kfbh.endian:                          0 ; 0x000: 0x00
kfbh.hard:                          130 ; 0x001: 0x82
kfbh.type:                            1 ; 0x002: KFBTYP_DISKHEAD
kfbh.datfmt:                          1 ; 0x003: 0x01
kfbh.block.blk:                       0 ; 0x004: T=0 NUMB=0x0
kfbh.block.obj:              2147483654 ; 0x008: TYPE=0x8 NUMB=0x6
kfbh.check:                   158487679 ; 0x00c: 0x097284c4
kfbh.fcn.base:                        0 ; 0x010: 0x00000000
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:                186646528 ; 0x020: 0x0b200000
kfdhdb.dsknum:                        6 ; 0x024: 0x0006
kfdhdb.grptyp:                        1 ; 0x026: KFDGTP_EXTERNAL
kfdhdb.hdrsts:                        3 ; 0x027: KFDHDR_MEMBER
kfdhdb.dskname:        ORA_DATA_DG_0006 ; 0x028: length=16
kfdhdb.grpname:             ORA_DATA_DG ; 0x048: length=11
kfdhdb.fgname:         ORA_DATA_DG_0006 ; 0x068: length=16
kfdhdb.capname:                         ; 0x088: length=0
kfdhdb.crestmp.hi:             32956017 ; 0x0a8: HOUR=0x11 DAYS=0x13 MNTH=0x7 YEAR=0x7db
kfdhdb.crestmp.lo:           2311484416 ; 0x0ac: USEC=0x0 MSEC=0x19d SECS=0x1c MINS=0x22
kfdhdb.mntstmp.hi:             32956043 ; 0x0b0: HOUR=0xb DAYS=0x14 MNTH=0x7 YEAR=0x7db
kfdhdb.mntstmp.lo:           3560723456 ; 0x0b4: USEC=0x0 MSEC=0x315 SECS=0x3 MINS=0x35
kfdhdb.secsize:                     512 ; 0x0b8: 0x0200
kfdhdb.blksize:                    4096 ; 0x0ba: 0x1000
kfdhdb.ausize:                  1048576 ; 0x0bc: 0x00100000
kfdhdb.mfact:                    113792 ; 0x0c0: 0x0001bc80
kfdhdb.dsksize:                  307160 ; 0x0c4: 0x0004afd8
kfdhdb.pmcnt:                         4 ; 0x0c8: 0x00000004
kfdhdb.fstlocn:                       1 ; 0x0cc: 0x00000001
kfdhdb.altlocn:                       2 ; 0x0d0: 0x00000002
kfdhdb.f1b1locn:                      0 ; 0x0d4: 0x00000000
kfdhdb.redomirrors[0]:                0 ; 0x0d8: 0x0000
kfdhdb.redomirrors[1]:                0 ; 0x0da: 0x0000
kfdhdb.redomirrors[2]:                0 ; 0x0dc: 0x0000
kfdhdb.redomirrors[3]:                0 ; 0x0de: 0x0000
kfdhdb.dbcompat:              168820736 ; 0x0e0: 0x0a100000
kfdhdb.grpstmp.hi:             32956017 ; 0x0e4: HOUR=0x11 DAYS=0x13 MNTH=0x7 YEAR=0x7db
kfdhdb.grpstmp.lo:           2308081664 ; 0x0e8: USEC=0x0 MSEC=0xa2 SECS=0x19 MINS=0x22
kfdhdb.vfstart:                       0 ; 0x0ec: 0x00000000
kfdhdb.vfend:                         0 ; 0x0f0: 0x00000000
kfdhdb.spfile:                        0 ; 0x0f4: 0x00000000
kfdhdb.spfflg:                        0 ; 0x0f8: 0x00000000
kfdhdb.ub4spare[0]:                   0 ; 0x0fc: 0x00000000
kfdhdb.ub4spare[1]:                   0 ; 0x100: 0x00000000
kfdhdb.ub4spare[2]:                   0 ; 0x104: 0x00000000
kfdhdb.ub4spare[3]:                   0 ; 0x108: 0x00000000
kfdhdb.ub4spare[4]:                   0 ; 0x10c: 0x00000000
kfdhdb.ub4spare[5]:                   0 ; 0x110: 0x00000000
kfdhdb.ub4spare[6]:                   0 ; 0x114: 0x00000000
kfdhdb.ub4spare[7]:                   0 ; 0x118: 0x00000000
kfdhdb.ub4spare[8]:                   0 ; 0x11c: 0x00000000
kfdhdb.ub4spare[9]:                   0 ; 0x120: 0x00000000
kfdhdb.ub4spare[10]:                  0 ; 0x124: 0x00000000
kfdhdb.ub4spare[11]:                  0 ; 0x128: 0x00000000
kfdhdb.ub4spare[12]:                  0 ; 0x12c: 0x00000000
kfdhdb.ub4spare[13]:                  0 ; 0x130: 0x00000000
kfdhdb.ub4spare[14]:                  0 ; 0x134: 0x00000000
kfdhdb.ub4spare[15]:                  0 ; 0x138: 0x00000000
kfdhdb.ub4spare[16]:                  0 ; 0x13c: 0x00000000
kfdhdb.ub4spare[17]:                  0 ; 0x140: 0x00000000
kfdhdb.ub4spare[18]:                  0 ; 0x144: 0x00000000
kfdhdb.ub4spare[19]:                  0 ; 0x148: 0x00000000
kfdhdb.ub4spare[20]:                  0 ; 0x14c: 0x00000000
kfdhdb.ub4spare[21]:                  0 ; 0x150: 0x00000000
kfdhdb.ub4spare[22]:                  0 ; 0x154: 0x00000000
kfdhdb.ub4spare[23]:                  0 ; 0x158: 0x00000000
kfdhdb.ub4spare[24]:                  0 ; 0x15c: 0x00000000
kfdhdb.ub4spare[25]:                  0 ; 0x160: 0x00000000
kfdhdb.ub4spare[26]:                  0 ; 0x164: 0x00000000
kfdhdb.ub4spare[27]:                  0 ; 0x168: 0x00000000
kfdhdb.ub4spare[28]:                  0 ; 0x16c: 0x00000000
kfdhdb.ub4spare[29]:                  0 ; 0x170: 0x00000000
kfdhdb.ub4spare[30]:                  0 ; 0x174: 0x00000000
kfdhdb.ub4spare[31]:                  0 ; 0x178: 0x00000000
kfdhdb.ub4spare[32]:                  0 ; 0x17c: 0x00000000
kfdhdb.ub4spare[33]:                  0 ; 0x180: 0x00000000
kfdhdb.ub4spare[34]:                  0 ; 0x184: 0x00000000
kfdhdb.ub4spare[35]:                  0 ; 0x188: 0x00000000
kfdhdb.ub4spare[36]:                  0 ; 0x18c: 0x00000000
kfdhdb.ub4spare[37]:                  0 ; 0x190: 0x00000000
kfdhdb.ub4spare[38]:                  0 ; 0x194: 0x00000000
kfdhdb.ub4spare[39]:                  0 ; 0x198: 0x00000000
kfdhdb.ub4spare[40]:                  0 ; 0x19c: 0x00000000
kfdhdb.ub4spare[41]:                  0 ; 0x1a0: 0x00000000
kfdhdb.ub4spare[42]:                  0 ; 0x1a4: 0x00000000
kfdhdb.ub4spare[43]:                  0 ; 0x1a8: 0x00000000
kfdhdb.ub4spare[44]:                  0 ; 0x1ac: 0x00000000
kfdhdb.ub4spare[45]:                  0 ; 0x1b0: 0x00000000
kfdhdb.ub4spare[46]:                  0 ; 0x1b4: 0x00000000
kfdhdb.ub4spare[47]:                  0 ; 0x1b8: 0x00000000
kfdhdb.ub4spare[48]:                  0 ; 0x1bc: 0x00000000
kfdhdb.ub4spare[49]:                  0 ; 0x1c0: 0x00000000
kfdhdb.ub4spare[50]:                  0 ; 0x1c4: 0x00000000
kfdhdb.ub4spare[51]:                  0 ; 0x1c8: 0x00000000
kfdhdb.ub4spare[52]:                  0 ; 0x1cc: 0x00000000
kfdhdb.ub4spare[53]:                  0 ; 0x1d0: 0x00000000
kfdhdb.acdb.aba.seq:                  0 ; 0x1d4: 0x00000000
kfdhdb.acdb.aba.blk:                  0 ; 0x1d8: 0x00000000
kfdhdb.acdb.ents:                     0 ; 0x1dc: 0x0000
kfdhdb.acdb.ub2spare:                 0 ; 0x1de: 0x0000
#如果你没有备份可以手动编辑一个头部信息文件

四、启动磁盘组ORA_DATA_DG

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