KCVFH means kernel cache recovery file header.The length of datafile header for different version is different.
9i kcvfh
10g kcvfh 676 bytes
11g kcvfh 860 bytes
12c kcvfh 1112 bytes
BBED> p kcvfh
struct kcvfh, 860 bytes @0
struct kcvfhbfh, 20 bytes @0
ub1 type_kcbh @0 0x0b --Block type
ub1 frmt_kcbh @1 0xa2 --Block format
ub1 spare1_kcbh @2 0x00
ub1 spare2_kcbh @3 0x00
ub4 rdba_kcbh @4 0x00400001 --Block address
ub4 bas_kcbh @8 0x00000000 --Scn base
ub2 wrp_kcbh @12 0x0000 --Scn wrap
ub1 seq_kcbh @14 0x01 --Sequence
ub1 flg_kcbh @15 0x04 (KCBHFCKV) --Block flag
ub2 chkval_kcbh @16 0x40d1 --Block checksum
ub2 spare3_kcbh @18 0x0000
struct kcvfhhdr, 76 bytes @20
ub4 kccfhswv @20 0x00000000 --Software version
ub4 kccfhcvn @24 0x0b200400 --Compatibility Version
ub4 kccfhdbi @28 0x028f3abc --Dbid
text kccfhdbn[0] @32 U --Dbname
text kccfhdbn[1] @33 P
text kccfhdbn[2] @34 G
text kccfhdbn[3] @35 R
text kccfhdbn[4] @36
text kccfhdbn[5] @37
text kccfhdbn[6] @38
text kccfhdbn[7] @39
ub4 kccfhcsq @40 0x000008da --Controlfile Seq at last ckpt
ub4 kccfhfsz @44 0x00019a00 --Filesize
s_blkz kccfhbsz @48 0x00 --The logical block size for flashback
ub2 kccfhfno @52 0x0001 --File number
ub2 kccfhtyp @54 0x0003 --File type
ub4 kccfhacid @56 0x00000000 --Activation identifier
ub4 kccfhcks @60 0x00000000 --File checksum
text kccfhtag[0] @64 --Control file tag based on date and time
text kccfhtag[1] @65
text kccfhtag[2] @66
text kccfhtag[3] @67
text kccfhtag[4] @68
text kccfhtag[5] @69
text kccfhtag[6] @70
text kccfhtag[7] @71
text kccfhtag[8] @72
text kccfhtag[9] @73
text kccfhtag[10] @74
text kccfhtag[11] @75
text kccfhtag[12] @76
text kccfhtag[13] @77
text kccfhtag[14] @78
text kccfhtag[15] @79
text kccfhtag[16] @80
text kccfhtag[17] @81
text kccfhtag[18] @82
text kccfhtag[19] @83
text kccfhtag[20] @84
text kccfhtag[21] @85
text kccfhtag[22] @86
text kccfhtag[23] @87
text kccfhtag[24] @88
text kccfhtag[25] @89
text kccfhtag[26] @90
text kccfhtag[27] @91
text kccfhtag[28] @92
text kccfhtag[29] @93
text kccfhtag[30] @94
text kccfhtag[31] @95
ub4 kcvfhrdb @96 0x00400208 --Root dba block
struct kcvfhcrs, 8 bytes @100
ub4 kscnbas @100 0x00000007 --File created scn
ub2 kscnwrp @104 0x0000
ub4 kcvfhcrt @108 0x3121c97d --Datafile create time
ub4 kcvfhrlc @112 0x360233bd --Last resetlog time
struct kcvfhrls, 8 bytes @116 --Last resetlog scn
ub4 kscnbas @116 0x000e2006
ub2 kscnwrp @120 0x0000
ub4 kcvfhbti @124 0x00000000 --Hot backup time(begin backup)
struct kcvfhbsc, 8 bytes @128 --Hot backup scn
ub4 kscnbas @128 0x00000000
ub2 kscnwrp @132 0x0000
ub2 kcvfhbth @136 0x0000 --Hot backup thread
ub2 kcvfhsta @138 0x2004 (KCVFHOFZ) --File status
struct kcvfhckp, 36 bytes @484
struct kcvcpscn, 8 bytes @484 --Checkpoint scn
ub4 kscnbas @484 0x2719a36e
ub2 kscnwrp @488 0x0d87
ub4 kcvcptim @492 0x362e681b --Checkpoint time
ub2 kcvcpthr @496 0x0001 --Checkpoint thread
union u, 12 bytes @500
struct kcvcprba, 12 bytes @500 --Checkpoint rba
ub4 kcrbaseq @500 0x00000014
ub4 kcrbabno @504 0x00009af7
ub2 kcrbabof @508 0x0010
ub1 kcvcpetb[0] @512 0x02 --Backup Enabled Threads
ub1 kcvcpetb[1] @513 0x00
ub1 kcvcpetb[2] @514 0x00
ub1 kcvcpetb[3] @515 0x00
ub1 kcvcpetb[4] @516 0x00
ub1 kcvcpetb[5] @517 0x00
ub1 kcvcpetb[6] @518 0x00
ub1 kcvcpetb[7] @519 0x00
ub4 kcvfhcpc @140 0x00000081 --Checkpoint count
ub4 kcvfhrts @144 0x36292c33 --Recovery timestamp
ub4 kcvfhccc @148 0x00000080 --Controlfile Checkpoint Count
struct kcvfhbcp, 36 bytes @152
struct kcvcpscn, 8 bytes @152 --Backup ckpt scn
ub4 kscnbas @152 0x00000000
ub2 kscnwrp @156 0x0000
ub4 kcvcptim @160 0x00000000 --Backup ckpt time
ub2 kcvcpthr @164 0x0000 --Backup thread
union u, 12 bytes @168 --Backup rba
struct kcvcprba, 12 bytes @168
ub4 kcrbaseq @168 0x00000000
ub4 kcrbabno @172 0x00000000
ub2 kcrbabof @176 0x0000
ub1 kcvcpetb[0] @180 0x00 --Ckpt enable thread bit
ub1 kcvcpetb[1] @181 0x00
ub1 kcvcpetb[2] @182 0x00
ub1 kcvcpetb[3] @183 0x00
ub1 kcvcpetb[4] @184 0x00
ub1 kcvcpetb[5] @185 0x00
ub1 kcvcpetb[6] @186 0x00
ub1 kcvcpetb[7] @187 0x00
ub4 kcvfhbhz @312 0x00000000 --File size when hot backup begins
struct kcvfhxcd, 16 bytes @316 --External cache id
ub4 space_kcvmxcd[0] @316 0x00000000
ub4 space_kcvmxcd[1] @320 0x00000000
ub4 space_kcvmxcd[2] @324 0x00000000
ub4 space_kcvmxcd[3] @328 0x00000000
sword kcvfhtsn @332 0 --Tablespace number
ub2 kcvfhtln @336 0x0006 --The length of tablespace name
text kcvfhtnm[0] @338 S --Tablespace name
text kcvfhtnm[1] @339 Y
text kcvfhtnm[2] @340 S
text kcvfhtnm[3] @341 T
text kcvfhtnm[4] @342 E
text kcvfhtnm[5] @343 M
text kcvfhtnm[6] @344
text kcvfhtnm[7] @345
text kcvfhtnm[8] @346
text kcvfhtnm[9] @347
text kcvfhtnm[10] @348
text kcvfhtnm[11] @349
text kcvfhtnm[12] @350
text kcvfhtnm[13] @351
text kcvfhtnm[14] @352
text kcvfhtnm[15] @353
text kcvfhtnm[16] @354
text kcvfhtnm[17] @355
text kcvfhtnm[18] @356
text kcvfhtnm[19] @357
text kcvfhtnm[20] @358
text kcvfhtnm[21] @359
text kcvfhtnm[22] @360
text kcvfhtnm[23] @361
text kcvfhtnm[24] @362
text kcvfhtnm[25] @363
text kcvfhtnm[26] @364
text kcvfhtnm[27] @365
text kcvfhtnm[28] @366
text kcvfhtnm[29] @367
ub4 kcvfhrfn @368 0x00000001 --Relateive file number
struct kcvfhrfs, 8 bytes @372 --Recovery Fuzzy SCN
ub4 kscnbas @372 0x00000000
ub2 kscnwrp @376 0x0000
ub4 kcvfhrft @380 0x00000000 --Recovery fuzzy time
struct kcvfhafs, 8 bytes @384 --Absolute Fuzzy SCN(Minimum PITR SCN)
ub4 kscnbas @384 0x00000000
ub2 kscnwrp @388 0x0000
ub4 kcvfhbbc @392 0x00000000 --Backup blocks count(except image copies)
ub4 kcvfhncb @396 0x00000000 --New media corrupt blocks
ub4 kcvfhmcb @400 0x00000000 --Media corrupt blocks
ub4 kcvfhlcb @404 0x00000000 --Logical corrupt blocks
ub4 kcvfhbcs @408 0x00000000 --
ub2 kcvfhofb @412 0x000a --It should be the related with RDBA format
ub2 kcvfhnfb @414 0x000a --It should be the related with RDBA format
ub4 kcvfhprc @416 0x3121c97a --Previous Resetlog count
struct kcvfhprs, 8 bytes @420 --Previous Resetlog SCN from database
ub4 kscnbas @420 0x00000001
ub2 kscnwrp @424 0x0000
struct kcvfhprfs, 8 bytes @428 --Previous media recovery fuzzy scn
ub4 kscnbas @428 0x00000000
ub2 kscnwrp @432 0x0000
ub4 kcvfhtrt @444 0x00000000 --Terminal Recovery TimeStamp
BBED>
Datafile Header
DATA FILE #1:
name #7: /oradata/upgr/system01.dbf
creation size=0 block size=8192 status=0xe head=7 tail=7 dup=1
tablespace 0, index=1 krfil=1 prev_file=0
unrecoverable scn: 0x0000.00000000 01/01/1988 00:00:00
Checkpoint cnt:132 scn: 0x0d87.271a3866 04/15/2016 00:07:47
Stop scn: 0xffff.ffffffff 04/14/2016 21:11:16
Creation Checkpointed at scn: 0x0000.00000007 08/24/2013 11:37:33
thread:0 rba:(0x0.0.0)
enabled threads: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000
Offline scn: 0x0000.000e2005 prev_range: 0
Online Checkpointed at scn: 0x0000.000e2006 03/10/2016 10:19:41
thread:1 rba:(0x1.2.0)
enabled threads: 01000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000
Hot Backup end marker scn: 0x0000.00000000
aux_file is NOT DEFINED
Plugged readony: NO
Plugin scnscn: 0x0000.00000000
Plugin resetlogs scn/timescn: 0x0000.00000000 01/01/1988 00:00:00
Foreign creation scn/timescn: 0x0000.00000000 01/01/1988 00:00:00
Foreign checkpoint scn/timescn: 0x0000.00000000 01/01/1988 00:00:00
Online move state: 0
V10 STYLE FILE HEADER:
Compatibility Vsn = 186647552=0xb200400
Db ID=42941116=0x28f3abc, Db Name='UPGR'
Activation ID=0=0x0
Control Seq=2472=0x9a8, File size=104960=0x19a00
File Number=1, Blksiz=8192, File Type=3 DATA
Tablespace #0 - SYSTEM rel_fn:1
Creation at scn: 0x0000.00000007 08/24/2013 11:37:33
Backup taken at scn: 0x0000.00000000 01/01/1988 00:00:00 thread:0
reset logs count:0x360233bd scn: 0x0000.000e2006
prev reset logs count:0x3121c97a scn: 0x0000.00000001
recovered at 04/15/2016 00:07:48
status:0x2004 root dba:0x00400208 chkpt cnt: 132 ctl cnt:131
begin-hot-backup file size: 0
Checkpointed at scn: 0x0d87.271a3866 04/15/2016 00:07:47
thread:1 rba:(0x15.2.10)
enabled threads: 01000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000
Backup Checkpointed at scn: 0x0000.00000000
thread:0 rba:(0x0.0.0)
enabled threads: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000
External cache id: 0x0 0x0 0x0 0x0
Absolute fuzzy scn: 0x0000.00000000
Recovery fuzzy scn: 0x0000.00000000 01/01/1988 00:00:00
Terminal Recovery Stamp 01/01/1988 00:00:00
Platform Information: Creation Platform ID: 13
Current Platform ID: 13 Last Platform ID: 13
