标签归档:asm恢复

kfed找出来asm 磁盘组中数据文件别名对应的文件号—amdu恢复

前段时间有多个朋友问我,在amdu中,如果数据文件命名不是omf的方式,该如何找出来数据文件的asm file_number,从而实现通过amdu对不能mount的磁盘组中的数据文件进行恢复,这里通过测试给出来处理方法.根据我们对asm的理解,asm file_number 6为asm file的别名文件记录所在地,我们通过分析kfed这些au中的记录即可获得相关数据文件的别名对应的asm文件号

模拟各种别名

D:\app\product\10.2.0\db_1\bin>sqlplus / as sysdba

SQL*Plus: Release 10.2.0.3.0 - Production on 星期三 7月 27 22:48:48 2016

Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.


连接到:
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Production
With the Partitioning, OLAP and Data Mining options

SQL> select name from v$datafile;

NAME
--------------------------------------------------------------------------------
+DATA/ora10g/datafile/system.256.914797317
+DATA/ora10g/datafile/undotbs1.258.914797317
+DATA/ora10g/datafile/sysaux.257.914797317
+DATA/ora10g/datafile/users.259.914797317

SQL> create tablespace xifenfei
  2  datafile '+data/xifenfei01.dbf' size 10M;

表空间已创建。

SQL> alter tablespace xifenfei add
  2  datafile '+data/ora10g/datafile/xifenfei02.dbf' size 10m;

表空间已更改。

SQL> alter tablespace xifenfei add
  2  datafile '+data/ora10g/xifenfei03.dbf' size 10m;

表空间已更改。

SQL> select name from v$datafile;

NAME
--------------------------------------------------------------------------------
+DATA/ora10g/datafile/system.256.914797317
+DATA/ora10g/datafile/undotbs1.258.914797317
+DATA/ora10g/datafile/sysaux.257.914797317
+DATA/ora10g/datafile/users.259.914797317
+DATA/xifenfei01.dbf
+DATA/ora10g/datafile/xifenfei02.dbf
+DATA/ora10g/xifenfei03.dbf

已选择7行。

分析磁盘组和别名信息

SQL> select name from v$asm_disk;

NAME
------------------------------
DATA_0000
DATA_0001

SQL> select path from v$asm_disk;

PATH
-----------------------------------------
H:\ASMDISK\ASMDISK1.DD
H:\ASMDISK\ASMDISK2.DD

SQL> SELECT NAME,FILE_NUMBER FROM V$ASM_ALIAS where file_number<>4294967295;

NAME                           FILE_NUMBER
------------------------------ -----------
SYSTEM.256.914797317                   256
SYSAUX.257.914797317                   257
UNDOTBS1.258.914797317                 258
USERS.259.914797317                    259
XIFENFEI.266.918341361                 266
XIFENFEI.267.918341389                 267
xifenfei02.dbf                         267
XIFENFEI.268.918341409                 268
Current.260.914797381                  260
group_1.261.914797385                  261
group_2.262.914797385                  262
group_3.263.914797387                  263
TEMP.264.914797393                     264
spfile.265.914797421                   265
spfileora10g.ora                       265
xifenfei03.dbf                         268
xifenfei01.dbf                         266

已选择17行。

SQL> SELECT NAME,FILE_NUMBER FROM V$ASM_ALIAS;

NAME                           FILE_NUMBER
------------------------------ -----------
ORA10G                          4294967295
DATAFILE                        4294967295
SYSTEM.256.914797317                   256
SYSAUX.257.914797317                   257
UNDOTBS1.258.914797317                 258
USERS.259.914797317                    259
XIFENFEI.266.918341361                 266
XIFENFEI.267.918341389                 267
xifenfei02.dbf                         267
XIFENFEI.268.918341409                 268
CONTROLFILE                     4294967295
Current.260.914797381                  260
ONLINELOG                       4294967295
group_1.261.914797385                  261
group_2.262.914797385                  262
group_3.263.914797387                  263
TEMPFILE                        4294967295
TEMP.264.914797393                     264
PARAMETERFILE                   4294967295
spfile.265.914797421                   265
spfileora10g.ora                       265
xifenfei03.dbf                         268
xifenfei01.dbf                         266

已选择23行。

从sql查询,我们可以确定xifenfei0n.dbf对应的文件号分别为:xifenfei01.dbf==>266,xifenfei02.dbf==>267,xifenfei03.dbf==>268

通过kfed file 6所在位置

www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD |grep f1b1
kfdhdb.f1b1locn:                      2 ; 0x0d4: 0x00000002
kfdhdb.f1b1fcn.base:                  0 ; 0x100: 0x00000000
kfdhdb.f1b1fcn.wrap:                  0 ; 0x104: 0x00000000

www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=2 blkn=6|grep kfffde|more
kfffde[0].xptr.au:                   26 ; 0x4a0: 0x0000001a
kfffde[0].xptr.disk:                  0 ; 0x4a4: 0x0000
kfffde[0].xptr.flags:                 0 ; 0x4a6: L=0 E=0 D=0 S=0
kfffde[0].xptr.chk:                  48 ; 0x4a7: 0x30
kfffde[1].xptr.au:           4294967295 ; 0x4a8: 0xffffffff
kfffde[1].xptr.disk:              65535 ; 0x4ac: 0xffff

从这里我们可以确定别名的au只有一个位于disk 0, au 26(0x1a)的位置
通过kfed分析别名

www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 |more
kfbh.endian:                          1 ; 0x000: 0x01
kfbh.hard:                          130 ; 0x001: 0x82
kfbh.type:                           11 ; 0x002: KFBTYP_ALIASDIR
kfbh.datfmt:                          1 ; 0x003: 0x01
kfbh.block.blk:                       0 ; 0x004: blk=0
kfbh.block.obj:                       6 ; 0x008: file=6
kfbh.check:                  1563703526 ; 0x00c: 0x5d3438e6
kfbh.fcn.base:                     3461 ; 0x010: 0x00000d85
kfbh.fcn.wrap:                        0 ; 0x014: 0x00000000
kfbh.spare1:                          0 ; 0x018: 0x00000000
kfbh.spare2:                          0 ; 0x01c: 0x00000000
kffdnd.bnode.incarn:                  1 ; 0x000: A=1 NUMM=0x0
kffdnd.bnode.frlist.number:  4294967295 ; 0x004: 0xffffffff
kffdnd.bnode.frlist.incarn:           0 ; 0x008: A=0 NUMM=0x0
kffdnd.overfl.number:        4294967295 ; 0x00c: 0xffffffff
kffdnd.overfl.incarn:                 0 ; 0x010: A=0 NUMM=0x0
kffdnd.parent.number:                 0 ; 0x014: 0x00000000
kffdnd.parent.incarn:                 1 ; 0x018: A=1 NUMM=0x0
kffdnd.fstblk.number:                 0 ; 0x01c: 0x00000000
kffdnd.fstblk.incarn:                 1 ; 0x020: A=1 NUMM=0x0
kfade[0].entry.incarn:                1 ; 0x024: A=1 NUMM=0x0
kfade[0].entry.hash:         2080305534 ; 0x028: 0x7bfef17e
kfade[0].entry.refer.number:          1 ; 0x02c: 0x00000001
kfade[0].entry.refer.incarn:          1 ; 0x030: A=1 NUMM=0x0
kfade[0].name:                   ORA10G ; 0x034: length=6
kfade[0].fnum:               4294967295 ; 0x064: 0xffffffff
kfade[0].finc:               4294967295 ; 0x068: 0xffffffff
kfade[0].flags:                       4 ; 0x06c: U=0 S=0 S=1 U=0 F=0
kfade[0].ub1spare:                    0 ; 0x06d: 0x00
kfade[0].freeblock:                   0 ; 0x06e: 0x0000
kfade[1].entry.incarn:                1 ; 0x070: A=1 NUMM=0x0
kfade[1].entry.hash:         3085841201 ; 0x074: 0xb7ee3331
kfade[1].entry.refer.number: 4294967295 ; 0x078: 0xffffffff
kfade[1].entry.refer.incarn:          0 ; 0x07c: A=0 NUMM=0x0
kfade[1].name:           xifenfei01.dbf ; 0x080: length=14
kfade[1].fnum:                      266 ; 0x0b0: 0x0000010a
kfade[1].finc:                918341361 ; 0x0b4: 0x36bcc6f1
kfade[1].flags:                      17 ; 0x0b8: U=1 S=0 S=0 U=0 F=1
kfade[1].ub1spare:                    0 ; 0x0b9: 0x00
kfade[1].freeblock:                   0 ; 0x0ba: 0x0000
kfade[2].entry.incarn:                0 ; 0x0bc: A=0 NUMM=0x0
kfade[2].entry.hash:                  0 ; 0x0c0: 0x00000000
kfade[2].entry.refer.number:          0 ; 0x0c4: 0x00000000
kfade[2].entry.refer.incarn:          0 ; 0x0c8: A=0 NUMM=0x0
kfade[2].name:                          ; 0x0cc: length=0
kfade[2].fnum:                        0 ; 0x0fc: 0x00000000
kfade[2].finc:                        0 ; 0x100: 0x00000000
kfade[2].flags:                       0 ; 0x104: U=0 S=0 S=0 U=0 F=0
kfade[2].ub1spare:                    0 ; 0x105: 0x00
kfade[2].freeblock:                   0 ; 0x106: 0x0000

www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 |grep name
kfade[0].name:                   ORA10G ; 0x034: length=6
kfade[1].name:           xifenfei01.dbf ; 0x080: length=14
kfade[2].name:                          ; 0x0cc: length=0
kfade[3].name:                          ; 0x118: length=0
kfade[4].name:                          ; 0x164: length=0


www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blkn=1|more
kfbh.endian:                          1 ; 0x000: 0x01
kfbh.hard:                          130 ; 0x001: 0x82
kfbh.type:                           11 ; 0x002: KFBTYP_ALIASDIR
kfbh.datfmt:                          1 ; 0x003: 0x01
kfbh.block.blk:                       1 ; 0x004: blk=1
kfbh.block.obj:                       6 ; 0x008: file=6
kfbh.check:                   239000469 ; 0x00c: 0x0e3edb95
kfbh.fcn.base:                     3536 ; 0x010: 0x00000dd0
kfbh.fcn.wrap:                        0 ; 0x014: 0x00000000
kfbh.spare1:                          0 ; 0x018: 0x00000000
kfbh.spare2:                          0 ; 0x01c: 0x00000000
kffdnd.bnode.incarn:                  1 ; 0x000: A=1 NUMM=0x0
kffdnd.bnode.frlist.number:  4294967295 ; 0x004: 0xffffffff
kffdnd.bnode.frlist.incarn:           0 ; 0x008: A=0 NUMM=0x0
kffdnd.overfl.number:        4294967295 ; 0x00c: 0xffffffff
kffdnd.overfl.incarn:                 0 ; 0x010: A=0 NUMM=0x0
kffdnd.parent.number:                 0 ; 0x014: 0x00000000
kffdnd.parent.incarn:                 1 ; 0x018: A=1 NUMM=0x0
kffdnd.fstblk.number:                 1 ; 0x01c: 0x00000001
kffdnd.fstblk.incarn:                 1 ; 0x020: A=1 NUMM=0x0
kfade[0].entry.incarn:                1 ; 0x024: A=1 NUMM=0x0
kfade[0].entry.hash:          710518681 ; 0x028: 0x2a59a799
kfade[0].entry.refer.number:          2 ; 0x02c: 0x00000002
kfade[0].entry.refer.incarn:          1 ; 0x030: A=1 NUMM=0x0
kfade[0].name:                 DATAFILE ; 0x034: length=8
kfade[0].fnum:               4294967295 ; 0x064: 0xffffffff
kfade[0].finc:               4294967295 ; 0x068: 0xffffffff
kfade[0].flags:                       4 ; 0x06c: U=0 S=0 S=1 U=0 F=0
kfade[0].ub1spare:                    0 ; 0x06d: 0x00
kfade[0].freeblock:                   0 ; 0x06e: 0x0000
kfade[1].entry.incarn:                3 ; 0x070: A=1 NUMM=0x1
kfade[1].entry.hash:         4053320104 ; 0x074: 0xf198c1a8
kfade[1].entry.refer.number:          3 ; 0x078: 0x00000003
kfade[1].entry.refer.incarn:          3 ; 0x07c: A=1 NUMM=0x1
kfade[1].name:              CONTROLFILE ; 0x080: length=11
kfade[1].fnum:               4294967295 ; 0x0b0: 0xffffffff
kfade[1].finc:               4294967295 ; 0x0b4: 0xffffffff
kfade[1].flags:                       4 ; 0x0b8: U=0 S=0 S=1 U=0 F=0
kfade[1].ub1spare:                    0 ; 0x0b9: 0x00
kfade[1].freeblock:                   0 ; 0x0ba: 0x0000
kfade[2].entry.incarn:                1 ; 0x0bc: A=1 NUMM=0x0
kfade[2].entry.hash:         2803485489 ; 0x0c0: 0xa719cb31
kfade[2].entry.refer.number:          4 ; 0x0c4: 0x00000004
kfade[2].entry.refer.incarn:          1 ; 0x0c8: A=1 NUMM=0x0
kfade[2].name:                ONLINELOG ; 0x0cc: length=9
kfade[2].fnum:               4294967295 ; 0x0fc: 0xffffffff
kfade[2].finc:               4294967295 ; 0x100: 0xffffffff
kfade[2].flags:                       4 ; 0x104: U=0 S=0 S=1 U=0 F=0
kfade[2].ub1spare:                    0 ; 0x105: 0x00
kfade[2].freeblock:                   0 ; 0x106: 0x0000
kfade[3].entry.incarn:                1 ; 0x108: A=1 NUMM=0x0
kfade[3].entry.hash:         2905271101 ; 0x10c: 0xad2aeb3d
kfade[3].entry.refer.number:          5 ; 0x110: 0x00000005
kfade[3].entry.refer.incarn:          1 ; 0x114: A=1 NUMM=0x0
kfade[3].name:                 TEMPFILE ; 0x118: length=8
kfade[3].fnum:               4294967295 ; 0x148: 0xffffffff
kfade[3].finc:               4294967295 ; 0x14c: 0xffffffff
kfade[3].flags:                       4 ; 0x150: U=0 S=0 S=1 U=0 F=0
kfade[3].ub1spare:                    0 ; 0x151: 0x00
kfade[3].freeblock:                   0 ; 0x152: 0x0000
kfade[4].entry.incarn:                1 ; 0x154: A=1 NUMM=0x0
kfade[4].entry.hash:         3261836913 ; 0x158: 0xc26bae71
kfade[4].entry.refer.number:          6 ; 0x15c: 0x00000006
kfade[4].entry.refer.incarn:          1 ; 0x160: A=1 NUMM=0x0
kfade[4].name:            PARAMETERFILE ; 0x164: length=13
kfade[4].fnum:               4294967295 ; 0x194: 0xffffffff
kfade[4].finc:               4294967295 ; 0x198: 0xffffffff
kfade[4].flags:                       4 ; 0x19c: U=0 S=0 S=1 U=0 F=0
kfade[4].ub1spare:                    0 ; 0x19d: 0x00
kfade[4].freeblock:                   0 ; 0x19e: 0x0000
kfade[5].entry.incarn:                1 ; 0x1a0: A=1 NUMM=0x0
kfade[5].entry.hash:         3373604202 ; 0x1a4: 0xc9151d6a
kfade[5].entry.refer.number: 4294967295 ; 0x1a8: 0xffffffff
kfade[5].entry.refer.incarn:          0 ; 0x1ac: A=0 NUMM=0x0
kfade[5].name:         spfileora10g.ora ; 0x1b0: length=16
kfade[5].fnum:                      265 ; 0x1e0: 0x00000109
kfade[5].finc:                914797421 ; 0x1e4: 0x3686b36d
kfade[5].flags:                      17 ; 0x1e8: U=1 S=0 S=0 U=0 F=1
kfade[5].ub1spare:                    0 ; 0x1e9: 0x00
kfade[5].freeblock:                   0 ; 0x1ea: 0x0000
kfade[6].entry.incarn:                1 ; 0x1ec: A=1 NUMM=0x0
kfade[6].entry.hash:         3992241470 ; 0x1f0: 0xedf4c53e
kfade[6].entry.refer.number: 4294967295 ; 0x1f4: 0xffffffff
kfade[6].entry.refer.incarn:          0 ; 0x1f8: A=0 NUMM=0x0
kfade[6].name:           xifenfei03.dbf ; 0x1fc: length=14
kfade[6].fnum:                      268 ; 0x22c: 0x0000010c
kfade[6].finc:                918341409 ; 0x230: 0x36bcc721
kfade[6].flags:                      17 ; 0x234: U=1 S=0 S=0 U=0 F=1
kfade[6].ub1spare:                    0 ; 0x235: 0x00
kfade[6].freeblock:                   0 ; 0x236: 0x0000
kfade[7].entry.incarn:                0 ; 0x238: A=0 NUMM=0x0
kfade[7].entry.hash:                  0 ; 0x23c: 0x00000000
kfade[7].entry.refer.number:          0 ; 0x240: 0x00000000
kfade[7].entry.refer.incarn:          0 ; 0x244: A=0 NUMM=0x0
kfade[7].name:                          ; 0x248: length=0
kfade[7].fnum:                        0 ; 0x278: 0x00000000
kfade[7].finc:                        0 ; 0x27c: 0x00000000
kfade[7].flags:                       0 ; 0x280: U=0 S=0 S=0 U=0 F=0
kfade[7].ub1spare:                    0 ; 0x281: 0x00
kfade[7].freeblock:                   0 ; 0x282: 0x0000


www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blkn=1|grep name
kfade[0].name:                 DATAFILE ; 0x034: length=8
kfade[1].name:              CONTROLFILE ; 0x080: length=11
kfade[2].name:                ONLINELOG ; 0x0cc: length=9
kfade[3].name:                 TEMPFILE ; 0x118: length=8
kfade[4].name:            PARAMETERFILE ; 0x164: length=13
kfade[5].name:         spfileora10g.ora ; 0x1b0: length=16
kfade[6].name:           xifenfei03.dbf ; 0x1fc: length=14
kfade[7].name:                          ; 0x248: length=0
kfade[8].name:                          ; 0x294: length=0


www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blkn=2
kfbh.endian:                          1 ; 0x000: 0x01
kfbh.hard:                          130 ; 0x001: 0x82
kfbh.type:                           11 ; 0x002: KFBTYP_ALIASDIR
kfbh.datfmt:                          1 ; 0x003: 0x01
kfbh.block.blk:                       2 ; 0x004: blk=2
kfbh.block.obj:                       6 ; 0x008: file=6
kfbh.check:                  3937052433 ; 0x00c: 0xeaaaa711
kfbh.fcn.base:                     3535 ; 0x010: 0x00000dcf
kfbh.fcn.wrap:                        0 ; 0x014: 0x00000000
kfbh.spare1:                          0 ; 0x018: 0x00000000
kfbh.spare2:                          0 ; 0x01c: 0x00000000
kffdnd.bnode.incarn:                  1 ; 0x000: A=1 NUMM=0x0
kffdnd.bnode.frlist.number:  4294967295 ; 0x004: 0xffffffff
kffdnd.bnode.frlist.incarn:           0 ; 0x008: A=0 NUMM=0x0
kffdnd.overfl.number:        4294967295 ; 0x00c: 0xffffffff
kffdnd.overfl.incarn:                 0 ; 0x010: A=0 NUMM=0x0
kffdnd.parent.number:                 1 ; 0x014: 0x00000001
kffdnd.parent.incarn:                 1 ; 0x018: A=1 NUMM=0x0
kffdnd.fstblk.number:                 2 ; 0x01c: 0x00000002
kffdnd.fstblk.incarn:                 1 ; 0x020: A=1 NUMM=0x0
kfade[0].entry.incarn:                1 ; 0x024: A=1 NUMM=0x0
kfade[0].entry.hash:         1410293950 ; 0x028: 0x540f60be
kfade[0].entry.refer.number: 4294967295 ; 0x02c: 0xffffffff
kfade[0].entry.refer.incarn:          0 ; 0x030: A=0 NUMM=0x0
kfade[0].name:                   SYSTEM ; 0x034: length=6
kfade[0].fnum:                      256 ; 0x064: 0x00000100
kfade[0].finc:                914797317 ; 0x068: 0x3686b305
kfade[0].flags:                      18 ; 0x06c: U=0 S=1 S=0 U=0 F=1
kfade[0].ub1spare:                    0 ; 0x06d: 0x00
kfade[0].freeblock:                   0 ; 0x06e: 0x0000
kfade[1].entry.incarn:                1 ; 0x070: A=1 NUMM=0x0
kfade[1].entry.hash:         1052386617 ; 0x074: 0x3eba2539
kfade[1].entry.refer.number: 4294967295 ; 0x078: 0xffffffff
kfade[1].entry.refer.incarn:          0 ; 0x07c: A=0 NUMM=0x0
kfade[1].name:                   SYSAUX ; 0x080: length=6
kfade[1].fnum:                      257 ; 0x0b0: 0x00000101
kfade[1].finc:                914797317 ; 0x0b4: 0x3686b305
kfade[1].flags:                      18 ; 0x0b8: U=0 S=1 S=0 U=0 F=1
kfade[1].ub1spare:                    0 ; 0x0b9: 0x00
kfade[1].freeblock:                   0 ; 0x0ba: 0x0000
kfade[2].entry.incarn:                1 ; 0x0bc: A=1 NUMM=0x0
kfade[2].entry.hash:         2341166852 ; 0x0c0: 0x8b8b5f04
kfade[2].entry.refer.number: 4294967295 ; 0x0c4: 0xffffffff
kfade[2].entry.refer.incarn:          0 ; 0x0c8: A=0 NUMM=0x0
kfade[2].name:                 UNDOTBS1 ; 0x0cc: length=8
kfade[2].fnum:                      258 ; 0x0fc: 0x00000102
kfade[2].finc:                914797317 ; 0x100: 0x3686b305
kfade[2].flags:                      18 ; 0x104: U=0 S=1 S=0 U=0 F=1
kfade[2].ub1spare:                    0 ; 0x105: 0x00
kfade[2].freeblock:                   0 ; 0x106: 0x0000
kfade[3].entry.incarn:                1 ; 0x108: A=1 NUMM=0x0
kfade[3].entry.hash:           18985629 ; 0x10c: 0x0121b29d
kfade[3].entry.refer.number: 4294967295 ; 0x110: 0xffffffff
kfade[3].entry.refer.incarn:          0 ; 0x114: A=0 NUMM=0x0
kfade[3].name:                    USERS ; 0x118: length=5
kfade[3].fnum:                      259 ; 0x148: 0x00000103
kfade[3].finc:                914797317 ; 0x14c: 0x3686b305
kfade[3].flags:                      18 ; 0x150: U=0 S=1 S=0 U=0 F=1
kfade[3].ub1spare:                    0 ; 0x151: 0x00
kfade[3].freeblock:                   0 ; 0x152: 0x0000
kfade[4].entry.incarn:                1 ; 0x154: A=1 NUMM=0x0
kfade[4].entry.hash:          379856949 ; 0x158: 0x16a42835
kfade[4].entry.refer.number: 4294967295 ; 0x15c: 0xffffffff
kfade[4].entry.refer.incarn:          0 ; 0x160: A=0 NUMM=0x0
kfade[4].name:                 XIFENFEI ; 0x164: length=8
kfade[4].fnum:                      266 ; 0x194: 0x0000010a
kfade[4].finc:                918341361 ; 0x198: 0x36bcc6f1
kfade[4].flags:                      18 ; 0x19c: U=0 S=1 S=0 U=0 F=1
kfade[4].ub1spare:                    0 ; 0x19d: 0x00
kfade[4].freeblock:                   0 ; 0x19e: 0x0000
kfade[5].entry.incarn:                1 ; 0x1a0: A=1 NUMM=0x0
kfade[5].entry.hash:          889929475 ; 0x1a4: 0x350b3f03
kfade[5].entry.refer.number: 4294967295 ; 0x1a8: 0xffffffff
kfade[5].entry.refer.incarn:          0 ; 0x1ac: A=0 NUMM=0x0
kfade[5].name:                 XIFENFEI ; 0x1b0: length=8
kfade[5].fnum:                      267 ; 0x1e0: 0x0000010b
kfade[5].finc:                918341389 ; 0x1e4: 0x36bcc70d
kfade[5].flags:                      18 ; 0x1e8: U=0 S=1 S=0 U=0 F=1
kfade[5].ub1spare:                    0 ; 0x1e9: 0x00
kfade[5].freeblock:                   0 ; 0x1ea: 0x0000
kfade[6].entry.incarn:                1 ; 0x1ec: A=1 NUMM=0x0
kfade[6].entry.hash:         3416790953 ; 0x1f0: 0xcba817a9
kfade[6].entry.refer.number: 4294967295 ; 0x1f4: 0xffffffff
kfade[6].entry.refer.incarn:          0 ; 0x1f8: A=0 NUMM=0x0
kfade[6].name:           xifenfei02.dbf ; 0x1fc: length=14
kfade[6].fnum:                      267 ; 0x22c: 0x0000010b
kfade[6].finc:                918341389 ; 0x230: 0x36bcc70d
kfade[6].flags:                      17 ; 0x234: U=1 S=0 S=0 U=0 F=1
kfade[6].ub1spare:                    0 ; 0x235: 0x00
kfade[6].freeblock:                   0 ; 0x236: 0x0000
kfade[7].entry.incarn:                1 ; 0x238: A=1 NUMM=0x0
kfade[7].entry.hash:         3200622536 ; 0x23c: 0xbec59fc8
kfade[7].entry.refer.number: 4294967295 ; 0x240: 0xffffffff
kfade[7].entry.refer.incarn:          0 ; 0x244: A=0 NUMM=0x0
kfade[7].name:                 XIFENFEI ; 0x248: length=8
kfade[7].fnum:                      268 ; 0x278: 0x0000010c
kfade[7].finc:                918341409 ; 0x27c: 0x36bcc721
kfade[7].flags:                      18 ; 0x280: U=0 S=1 S=0 U=0 F=1
kfade[7].ub1spare:                    0 ; 0x281: 0x00
kfade[7].freeblock:                   0 ; 0x282: 0x0000

www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blkn=2|grep name
kfade[0].name:                   SYSTEM ; 0x034: length=6
kfade[1].name:                   SYSAUX ; 0x080: length=6
kfade[2].name:                 UNDOTBS1 ; 0x0cc: length=8
kfade[3].name:                    USERS ; 0x118: length=5
kfade[4].name:                 XIFENFEI ; 0x164: length=8
kfade[5].name:                 XIFENFEI ; 0x1b0: length=8
kfade[6].name:           xifenfei02.dbf ; 0x1fc: length=14
kfade[7].name:                 XIFENFEI ; 0x248: length=8
kfade[8].name:                          ; 0x294: length=0


www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blkn=3
kfbh.endian:                          1 ; 0x000: 0x01
kfbh.hard:                          130 ; 0x001: 0x82
kfbh.type:                           11 ; 0x002: KFBTYP_ALIASDIR
kfbh.datfmt:                          1 ; 0x003: 0x01
kfbh.block.blk:                       3 ; 0x004: blk=3
kfbh.block.obj:                       6 ; 0x008: file=6
kfbh.check:                   362685464 ; 0x00c: 0x159e2418
kfbh.fcn.base:                     1938 ; 0x010: 0x00000792
kfbh.fcn.wrap:                        0 ; 0x014: 0x00000000
kfbh.spare1:                          0 ; 0x018: 0x00000000
kfbh.spare2:                          0 ; 0x01c: 0x00000000
kffdnd.bnode.incarn:                  3 ; 0x000: A=1 NUMM=0x1
kffdnd.bnode.frlist.number:  4294967295 ; 0x004: 0xffffffff
kffdnd.bnode.frlist.incarn:           0 ; 0x008: A=0 NUMM=0x0
kffdnd.overfl.number:        4294967295 ; 0x00c: 0xffffffff
kffdnd.overfl.incarn:                 0 ; 0x010: A=0 NUMM=0x0
kffdnd.parent.number:                 1 ; 0x014: 0x00000001
kffdnd.parent.incarn:                 1 ; 0x018: A=1 NUMM=0x0
kffdnd.fstblk.number:                 3 ; 0x01c: 0x00000003
kffdnd.fstblk.incarn:                 3 ; 0x020: A=1 NUMM=0x1
kfade[0].entry.incarn:                3 ; 0x024: A=1 NUMM=0x1
kfade[0].entry.hash:         2951411460 ; 0x028: 0xafeaf704
kfade[0].entry.refer.number: 4294967295 ; 0x02c: 0xffffffff
kfade[0].entry.refer.incarn:          0 ; 0x030: A=0 NUMM=0x0
kfade[0].name:                  Current ; 0x034: length=7
kfade[0].fnum:                      260 ; 0x064: 0x00000104
kfade[0].finc:                914797381 ; 0x068: 0x3686b345
kfade[0].flags:                      18 ; 0x06c: U=0 S=1 S=0 U=0 F=1
kfade[0].ub1spare:                    0 ; 0x06d: 0x00
kfade[0].freeblock:                   0 ; 0x06e: 0x0000
kfade[1].entry.incarn:                0 ; 0x070: A=0 NUMM=0x0
kfade[1].entry.hash:                  0 ; 0x074: 0x00000000
kfade[1].entry.refer.number:          0 ; 0x078: 0x00000000
kfade[1].entry.refer.incarn:          0 ; 0x07c: A=0 NUMM=0x0
kfade[1].name:                          ; 0x080: length=0
kfade[1].fnum:                        0 ; 0x0b0: 0x00000000
kfade[1].finc:                        0 ; 0x0b4: 0x00000000
kfade[1].flags:                       0 ; 0x0b8: U=0 S=0 S=0 U=0 F=0
kfade[1].ub1spare:                    0 ; 0x0b9: 0x00
kfade[1].freeblock:                   0 ; 0x0ba: 0x0000

www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blkn=3|grep name
kfade[0].name:                  Current ; 0x034: length=7
kfade[1].name:                          ; 0x080: length=0
kfade[2].name:                          ; 0x0cc: length=0
kfade[3].name:                          ; 0x118: length=0
kfade[4].name:                          ; 0x164: length=0

www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blkn=4|more
kfbh.endian:                          1 ; 0x000: 0x01
kfbh.hard:                          130 ; 0x001: 0x82
kfbh.type:                           11 ; 0x002: KFBTYP_ALIASDIR
kfbh.datfmt:                          1 ; 0x003: 0x01
kfbh.block.blk:                       4 ; 0x004: blk=4
kfbh.block.obj:                       6 ; 0x008: file=6
kfbh.check:                  3581479529 ; 0x00c: 0xd5790a69
kfbh.fcn.base:                     2167 ; 0x010: 0x00000877
kfbh.fcn.wrap:                        0 ; 0x014: 0x00000000
kfbh.spare1:                          0 ; 0x018: 0x00000000
kfbh.spare2:                          0 ; 0x01c: 0x00000000
kffdnd.bnode.incarn:                  1 ; 0x000: A=1 NUMM=0x0
kffdnd.bnode.frlist.number:  4294967295 ; 0x004: 0xffffffff
kffdnd.bnode.frlist.incarn:           0 ; 0x008: A=0 NUMM=0x0
kffdnd.overfl.number:        4294967295 ; 0x00c: 0xffffffff
kffdnd.overfl.incarn:                 0 ; 0x010: A=0 NUMM=0x0
kffdnd.parent.number:                 1 ; 0x014: 0x00000001
kffdnd.parent.incarn:                 1 ; 0x018: A=1 NUMM=0x0
kffdnd.fstblk.number:                 4 ; 0x01c: 0x00000004
kffdnd.fstblk.incarn:                 1 ; 0x020: A=1 NUMM=0x0
kfade[0].entry.incarn:                1 ; 0x024: A=1 NUMM=0x0
kfade[0].entry.hash:         1017821950 ; 0x028: 0x3caabafe
kfade[0].entry.refer.number: 4294967295 ; 0x02c: 0xffffffff
kfade[0].entry.refer.incarn:          0 ; 0x030: A=0 NUMM=0x0
kfade[0].name:                  group_1 ; 0x034: length=7
kfade[0].fnum:                      261 ; 0x064: 0x00000105
kfade[0].finc:                914797385 ; 0x068: 0x3686b349
kfade[0].flags:                      18 ; 0x06c: U=0 S=1 S=0 U=0 F=1
kfade[0].ub1spare:                    0 ; 0x06d: 0x00
kfade[0].freeblock:                   0 ; 0x06e: 0x0000
kfade[1].entry.incarn:                1 ; 0x070: A=1 NUMM=0x0
kfade[1].entry.hash:         1570256801 ; 0x074: 0x5d9837a1
kfade[1].entry.refer.number: 4294967295 ; 0x078: 0xffffffff
kfade[1].entry.refer.incarn:          0 ; 0x07c: A=0 NUMM=0x0
kfade[1].name:                  group_2 ; 0x080: length=7
kfade[1].fnum:                      262 ; 0x0b0: 0x00000106
kfade[1].finc:                914797385 ; 0x0b4: 0x3686b349
kfade[1].flags:                      18 ; 0x0b8: U=0 S=1 S=0 U=0 F=1
kfade[1].ub1spare:                    0 ; 0x0b9: 0x00
kfade[1].freeblock:                   0 ; 0x0ba: 0x0000
kfade[2].entry.incarn:                1 ; 0x0bc: A=1 NUMM=0x0
kfade[2].entry.hash:          157707762 ; 0x0c0: 0x09666df2
kfade[2].entry.refer.number: 4294967295 ; 0x0c4: 0xffffffff
kfade[2].entry.refer.incarn:          0 ; 0x0c8: A=0 NUMM=0x0
kfade[2].name:                  group_3 ; 0x0cc: length=7
kfade[2].fnum:                      263 ; 0x0fc: 0x00000107
kfade[2].finc:                914797387 ; 0x100: 0x3686b34b
kfade[2].flags:                      18 ; 0x104: U=0 S=1 S=0 U=0 F=1
kfade[2].ub1spare:                    0 ; 0x105: 0x00
kfade[2].freeblock:                   0 ; 0x106: 0x0000
kfade[3].entry.incarn:                0 ; 0x108: A=0 NUMM=0x0
kfade[3].entry.hash:                  0 ; 0x10c: 0x00000000
kfade[3].entry.refer.number:          0 ; 0x110: 0x00000000
kfade[3].entry.refer.incarn:          0 ; 0x114: A=0 NUMM=0x0
kfade[3].name:                          ; 0x118: length=0
kfade[3].fnum:                        0 ; 0x148: 0x00000000
kfade[3].finc:                        0 ; 0x14c: 0x00000000
kfade[3].flags:                       0 ; 0x150: U=0 S=0 S=0 U=0 F=0
kfade[3].ub1spare:                    0 ; 0x151: 0x00
kfade[3].freeblock:                   0 ; 0x152: 0x0000

www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blkn=4|grep name
kfade[0].name:                  group_1 ; 0x034: length=7
kfade[1].name:                  group_2 ; 0x080: length=7
kfade[2].name:                  group_3 ; 0x0cc: length=7
kfade[3].name:                          ; 0x118: length=0
kfade[4].name:                          ; 0x164: length=0
kfade[5].name:                          ; 0x1b0: length=0
kfade[6].name:                          ; 0x1fc: length=0


www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blkn=5|more
kfbh.endian:                          1 ; 0x000: 0x01
kfbh.hard:                          130 ; 0x001: 0x82
kfbh.type:                           11 ; 0x002: KFBTYP_ALIASDIR
kfbh.datfmt:                          1 ; 0x003: 0x01
kfbh.block.blk:                       5 ; 0x004: blk=5
kfbh.block.obj:                       6 ; 0x008: file=6
kfbh.check:                  1153372471 ; 0x00c: 0x44bf1137
kfbh.fcn.base:                     2212 ; 0x010: 0x000008a4
kfbh.fcn.wrap:                        0 ; 0x014: 0x00000000
kfbh.spare1:                          0 ; 0x018: 0x00000000
kfbh.spare2:                          0 ; 0x01c: 0x00000000
kffdnd.bnode.incarn:                  1 ; 0x000: A=1 NUMM=0x0
kffdnd.bnode.frlist.number:  4294967295 ; 0x004: 0xffffffff
kffdnd.bnode.frlist.incarn:           0 ; 0x008: A=0 NUMM=0x0
kffdnd.overfl.number:        4294967295 ; 0x00c: 0xffffffff
kffdnd.overfl.incarn:                 0 ; 0x010: A=0 NUMM=0x0
kffdnd.parent.number:                 1 ; 0x014: 0x00000001
kffdnd.parent.incarn:                 1 ; 0x018: A=1 NUMM=0x0
kffdnd.fstblk.number:                 5 ; 0x01c: 0x00000005
kffdnd.fstblk.incarn:                 1 ; 0x020: A=1 NUMM=0x0
kfade[0].entry.incarn:                1 ; 0x024: A=1 NUMM=0x0
kfade[0].entry.hash:         3699413877 ; 0x028: 0xdc809375
kfade[0].entry.refer.number: 4294967295 ; 0x02c: 0xffffffff
kfade[0].entry.refer.incarn:          0 ; 0x030: A=0 NUMM=0x0
kfade[0].name:                     TEMP ; 0x034: length=4
kfade[0].fnum:                      264 ; 0x064: 0x00000108
kfade[0].finc:                914797393 ; 0x068: 0x3686b351
kfade[0].flags:                      18 ; 0x06c: U=0 S=1 S=0 U=0 F=1
kfade[0].ub1spare:                    0 ; 0x06d: 0x00
kfade[0].freeblock:                   0 ; 0x06e: 0x0000
kfade[1].entry.incarn:                0 ; 0x070: A=0 NUMM=0x0
kfade[1].entry.hash:                  0 ; 0x074: 0x00000000
kfade[1].entry.refer.number:          0 ; 0x078: 0x00000000
kfade[1].entry.refer.incarn:          0 ; 0x07c: A=0 NUMM=0x0
kfade[1].name:                          ; 0x080: length=0
kfade[1].fnum:                        0 ; 0x0b0: 0x00000000
kfade[1].finc:                        0 ; 0x0b4: 0x00000000
kfade[1].flags:                       0 ; 0x0b8: U=0 S=0 S=0 U=0 F=0
kfade[1].ub1spare:                    0 ; 0x0b9: 0x00
kfade[1].freeblock:                   0 ; 0x0ba: 0x0000

www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blkn=5|grep name
kfade[0].name:                     TEMP ; 0x034: length=4
kfade[1].name:                          ; 0x080: length=0
kfade[2].name:                          ; 0x0cc: length=0
kfade[3].name:                          ; 0x118: length=0
kfade[4].name:                          ; 0x164: length=0

www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blkn=6|more
kfbh.endian:                          1 ; 0x000: 0x01
kfbh.hard:                          130 ; 0x001: 0x82
kfbh.type:                           11 ; 0x002: KFBTYP_ALIASDIR
kfbh.datfmt:                          1 ; 0x003: 0x01
kfbh.block.blk:                       6 ; 0x004: blk=6
kfbh.block.obj:                       6 ; 0x008: file=6
kfbh.check:                  1230193442 ; 0x00c: 0x49534322
kfbh.fcn.base:                     2267 ; 0x010: 0x000008db
kfbh.fcn.wrap:                        0 ; 0x014: 0x00000000
kfbh.spare1:                          0 ; 0x018: 0x00000000
kfbh.spare2:                          0 ; 0x01c: 0x00000000
kffdnd.bnode.incarn:                  1 ; 0x000: A=1 NUMM=0x0
kffdnd.bnode.frlist.number:  4294967295 ; 0x004: 0xffffffff
kffdnd.bnode.frlist.incarn:           0 ; 0x008: A=0 NUMM=0x0
kffdnd.overfl.number:        4294967295 ; 0x00c: 0xffffffff
kffdnd.overfl.incarn:                 0 ; 0x010: A=0 NUMM=0x0
kffdnd.parent.number:                 1 ; 0x014: 0x00000001
kffdnd.parent.incarn:                 1 ; 0x018: A=1 NUMM=0x0
kffdnd.fstblk.number:                 6 ; 0x01c: 0x00000006
kffdnd.fstblk.incarn:                 1 ; 0x020: A=1 NUMM=0x0
kfade[0].entry.incarn:                1 ; 0x024: A=1 NUMM=0x0
kfade[0].entry.hash:         3897004393 ; 0x028: 0xe8479169
kfade[0].entry.refer.number: 4294967295 ; 0x02c: 0xffffffff
kfade[0].entry.refer.incarn:          0 ; 0x030: A=0 NUMM=0x0
kfade[0].name:                   spfile ; 0x034: length=6
kfade[0].fnum:                      265 ; 0x064: 0x00000109
kfade[0].finc:                914797421 ; 0x068: 0x3686b36d
kfade[0].flags:                      18 ; 0x06c: U=0 S=1 S=0 U=0 F=1
kfade[0].ub1spare:                    0 ; 0x06d: 0x00
kfade[0].freeblock:                   0 ; 0x06e: 0x0000
kfade[1].entry.incarn:                0 ; 0x070: A=0 NUMM=0x0
kfade[1].entry.hash:                  0 ; 0x074: 0x00000000
kfade[1].entry.refer.number:          0 ; 0x078: 0x00000000
kfade[1].entry.refer.incarn:          0 ; 0x07c: A=0 NUMM=0x0
kfade[1].name:                          ; 0x080: length=0
kfade[1].fnum:                        0 ; 0x0b0: 0x00000000
kfade[1].finc:                        0 ; 0x0b4: 0x00000000
kfade[1].flags:                       0 ; 0x0b8: U=0 S=0 S=0 U=0 F=0
kfade[1].ub1spare:                    0 ; 0x0b9: 0x00
kfade[1].freeblock:                   0 ; 0x0ba: 0x0000


www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blkn=6|grep name
kfade[0].name:                   spfile ; 0x034: length=6
kfade[1].name:                          ; 0x080: length=0
kfade[2].name:                          ; 0x0cc: length=0
kfade[3].name:                          ; 0x118: length=0
kfade[4].name:                          ; 0x164: length=0


www.xifenfei.com>kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blkn=7|grep name
kfade[0].name:                          ; 0x034: length=0
kfade[1].name:                          ; 0x080: length=0
kfade[2].name:                          ; 0x0cc: length=0
kfade[3].name:                          ; 0x118: length=0
kfade[4].name:                          ; 0x164: length=0
kfade[5].name:                          ; 0x1b0: length=0
kfade[6].name:                          ; 0x1fc: length=0

通过上述分析我们发现目前数据主要分布在au=26,block in(0-6)的几个block中,通过kfed已经找出来了所有的asm中文件的file_number

非win平台脚本实现

for (( i=0; i<255; i++ ))
do
   kfed read H:\ASMDISK\ASMDISK1.DD aun=26 blknum=$i 
  \|egrep 'name|fnum'|grep -v length=0 |grep -v 0x00000000 >>asm_file.out
done

注意需要按照file 6的au依次处理,否则会不全,更加简单的方法,直接通过dul扫描磁盘获取相关file number

发表在 Oracle ASM, Oracle备份恢复 | 标签为 , , , | 评论关闭

oracle asm系列文章汇总

为了方便大家更容易的查看相关asm内容,今天(2016年7月28日)对asm的相关文章进行了汇总整理.如果有asm相关的其他问题,可以通过手机(13429648788)或者QQ(107644445)交流
远程访问ASM
ASMCMD常用命令
ASM简单管理(1)
ASM简单管理(2)
找回ASM中数据文件
bbed修改ASM中数据
ASM迁移至文件系统
普通库迁移至ASM存储
使用dd复制asm中文件
配置Oracle ASM磁盘
ASM中磁盘组权限设置
监控asm disk磁盘性能
create spfile to asm
pvid=yes导致asm无法mount—ASM恢复案例
asm数据文件迁移(os–>asm)
asm数据文件迁移(asm–>asm)
asm数据文件迁移(asm–>os)
通过ftp/http拷贝asm中文件
ASM DISK HEADER 备份与恢复
手工修复ASM DISK HEADER 异常
asm disk header 彻底损坏恢复—ASM恢复案例
ASM未正常启动,使用dd找回数据文件
ORACLE 12C ASM 新特性:共享密码文件
asm备份元数据之md_backup和md_restore
分区无法识别导致asm diskgroup无法mount—ASM恢复案例
使用losetup实现linux普通文件做asm disk
asm 加磁盘导致磁盘组损坏恢复—ASM恢复案例
asm磁盘头全部损坏数据0丢失恢复—ASM恢复案例
Oracle异常恢复前备份保护现场建议—ASM环境
多cpu环境中运行root.sh失败,asm报ORA-04031
asmlib异常报ORA-00600[kfklLibFetchNext00]
存储精简卷导致asm磁盘组异常
因asm sga_target设置不当导致11gr2 rac无法正常启动
asm disk误设置pvid导致asm diskgroup无法mount恢复—ASM恢复案例
oracle asm disk格式化恢复—格式化为ntfs文件系统—ASM恢复案例
aoracle asm disk格式化恢复—格式化为ext4文件系统—ASM恢复案例
使用_asm_allow_only_raw_disks实现普通文件做asm disk
ORACLE 12C RAC修改ocr/votedisk/asm spfile所在磁盘组名称
使用asm disk header 自动备份信息恢复异常asm disk header
分享oracleasm createdisk重新创建asm disk后数据0丢失恢复案例—ASM恢复案例
asm磁盘组操作不当导致数据文件丢失恢复—ASM恢复案例
ADHU(ASM Disk Header Utility)—asm disk header备份恢复工具
How to Get the Contents of an Spfile on ASM when ASM/GRID is down
ORA-15042: ASM disk “N” is missing from group number “M” 故障恢复—ASM恢复案例

发表在 Oracle ASM, 专题索引 | 标签为 , , , | 评论关闭

pvid=yes导致asm无法mount

今天凌晨接到客户恢复请求,对于aix rac,两个ibm存储做mirror的环境中,客户做存储容灾演练,发现磁盘的名称发生改变,然后对其中一个磁盘设置pvid,结果悲剧了导致asm一个磁盘组无法正常起来。然后又aix端删除这些设备,然后重新扫描设备。结果不是一个磁盘组不能mount,而是整个gi就无法正常启动。希望我们给予技术支持。
查看asm 日志,确定asm disk信息
asm-disk1
asm-disk2


从这里可以确定,一共有两个asm diskgroup,每个group有两个磁盘,hdisk2和hdisk3 为hisdata,hdisk4,和hdisk5为emrdata.

使用kfed分析磁盘头

dd if=/dev/rhdisk2 of=/tmp/xifenfei/rhdisk2.dd bs=1024k count=10
dd if=/dev/rhdisk3 of=/tmp/xifenfei/rhdisk3.dd bs=1024k count=10
dd if=/dev/rhdisk4 of=/tmp/xifenfei/rhdisk4.dd bs=1024k count=10
dd if=/dev/rhdisk5 of=/tmp/xifenfei/rhdisk5.dd bs=1024k count=10
--传输到我电脑上分析

C:\Users\FAL>kfed read H:\temp\xifenfei\tmp\xifenfei\rhdisk2.dd|grep name
kfdhdb.dskname:            HISDATA_0000 ; 0x028: length=12
kfdhdb.grpname:                 HISDATA ; 0x048: length=7
kfdhdb.fgname:             HISDATA_0000 ; 0x068: length=12
kfdhdb.capname:                         ; 0x088: length=0

C:\Users\FAL>kfed read H:\temp\xifenfei\tmp\xifenfei\rhdisk3.dd|grep name
kfdhdb.dskname:            HISDATA_0001 ; 0x028: length=12
kfdhdb.grpname:                 HISDATA ; 0x048: length=7
kfdhdb.fgname:             HISDATA_0001 ; 0x068: length=12
kfdhdb.capname:                         ; 0x088: length=0

C:\Users\FAL>kfed read H:\temp\xifenfei\tmp\xifenfei\rhdisk4.dd|grep name
kfdhdb.dskname:            EMRDATA_0000 ; 0x028: length=12
kfdhdb.grpname:                 EMRDATA ; 0x048: length=7
kfdhdb.fgname:             EMRDATA_0000 ; 0x068: length=12
kfdhdb.capname:                         ; 0x088: length=0

C:\Users\FAL>kfed read H:\temp\xifenfei\tmp\xifenfei\rhdisk5.dd|grep name

C:\Users\FAL>kfed read H:\temp\xifenfei\tmp\xifenfei\rhdisk5.dd
kfbh.endian:                        201 ; 0x000: 0xc9
kfbh.hard:                          194 ; 0x001: 0xc2
kfbh.type:                          212 ; 0x002: *** Unknown Enum ***
kfbh.datfmt:                        193 ; 0x003: 0xc1
kfbh.block.blk:                       0 ; 0x004: blk=0
kfbh.block.obj:                       0 ; 0x008: file=0
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
000000000 C1D4C2C9 00000000 00000000 00000000  [................]
000000010 00000000 00000000 00000000 00000000  [................]
  Repeat 254 times
KFED-00322: Invalid content encountered during block traversal: [kfbtTraverseBlock][Invalid OSM block type][][212]

C:\Users\FAL>kfed read H:\temp\xifenfei\tmp\xifenfei\rhdisk5.dd blkn=2|grep kfbh
kfbh.endian:                          0 ; 0x000: 0x00
kfbh.hard:                          130 ; 0x001: 0x82
kfbh.type:                            3 ; 0x002: KFBTYP_ALLOCTBL
kfbh.datfmt:                          2 ; 0x003: 0x02
kfbh.block.blk:                33554432 ; 0x004: blk=33554432
kfbh.block.obj:                16777344 ; 0x008: file=128
kfbh.check:                  2654889601 ; 0x00c: 0x9e3e6681
kfbh.fcn.base:               1696071680 ; 0x010: 0x65180000
kfbh.fcn.wrap:                        0 ; 0x014: 0x00000000
kfbh.spare1:                          0 ; 0x018: 0x00000000
kfbh.spare2:                          0 ; 0x01c: 0x00000000

C:\Users\FAL>kfed read H:\temp\xifenfei\tmp\xifenfei\rhdisk5.dd blkn=510|grep name
kfdhdb.dskname:            EMRDATA_0001 ; 0x028: length=12
kfdhdb.grpname:                 EMRDATA ; 0x048: length=7
kfdhdb.fgname:             EMRDATA_0001 ; 0x068: length=12
kfdhdb.capname:                         ; 0x088: length=0

通过上述分析,基本上确定由于对hdisk5设置了pvid导致该asm disk的磁盘头损坏.这个可以直接使用asm repair功能修复(注意要clear pvid)

C:\Users\FAL>kfed read H:\temp\xifenfei\tmp\xifenfei\rhdisk5.dd |grep name
kfdhdb.dskname:            EMRDATA_0001 ; 0x028: length=12
kfdhdb.grpname:                 EMRDATA ; 0x048: length=7
kfdhdb.fgname:             EMRDATA_0001 ; 0x068: length=12
kfdhdb.capname:                         ; 0x088: length=0

启动crs到cssd进程报错分析
1. 由于删除磁盘,扫描设备导致hdisk[2-5] 权限和用户组不对
2. 由于删除,扫描磁盘导致磁盘共享模式不对
修复磁盘头和解决这两个问题之后,gi启动正常,磁盘组也正常mount,数据库也正常启动,数据0丢失,至此完美恢复
oracle-open


类似客户恢复案例:asm disk误设置pvid导致asm diskgroup无法mount恢复
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