Oracle数据库中的Cache对象（3）

DATA FILE #1: 
(name #9) /opt/oracle/oradata/eygle/system01.dbf
creation size=0 block size=8192 status=0xe 
head=9 tail=9 dup=1
tablespace 0, index=1 krfil=1 prev_file=0
unrecoverable scn: 0x0004.6c4b5cba 
                   04/10/2007 13:34:26
Checkpoint cnt:6933 scn: 0x0004.6c4dfc0c 
                   04/16/2007 14:38:05
Stop scn: 0xffff.ffffffff 04/07/2007 21:03:02
Creation Checkpointed at scn: 
                0x0000.00000007 04/24/2006 11:34:39
thread:0 rba:(0x0.0.0)
enabled  threads:  00000000 00000000 
00000000 00000000 00000000 00000000
  00000000 00000000
Offline scn: 0x0004.6c432ebf prev_range: 0
Online Checkpointed at scn:  
0x0004.6c432ec0 03/28/2007 11:22:37
thread:1 rba:(0x1.2.0)
enabled  threads:  01000000 00000000 
00000000 00000000 00000000 00000000
  00000000 00000000
Hot Backup end marker scn: 0x0000.00000000
aux_file is NOT DEFINED 
FILE HEADER:
        Software vsn=153092096=0x9200000, 
       Compatibility Vsn=134217728=0x8000000
        Db ID=1407686520=0x53e79778, Db Name='EYGLE'
        Activation ID=0=0x0
        Control Seq=1299557=0x13d465, 
        File size=27017=0x6989
        File Number=1, Blksiz=8192, File Type=3 DATA
Tablespace #0 - SYSTEM  rel_fn:1 
Creation  at  scn: 0x0000.00000007  
          04/24/2006 11:34:39
Backup taken at scn: 0x0004.6c2d657e 
          02/12/2007 15:54:52 thread:1
reset logs count:0x24dc1f7d scn: 0x0004.6c432ec0 
          recovered at 04/07/2007 21:04:11
status:0x4 root dba:0x004001a1 chkpt cnt: 
          6933 ctl cnt:6932
begin-hot-backup file size: 32000
Checkpointed at scn:  0x0004.6c4dfc0c 
          04/16/2007 14:38:05
thread:1 rba:(0x17.2.10)
enabled  threads:  01000000 00000000 00000000 
          00000000 00000000 00000000
          00000000 00000000
Backup Checkpointed at scn:  
          0x0004.6c2d657e 02/12/2007 15:54:52
thread:1 rba:(0x18e1.30.10)
enabled  threads:  01000000 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 scn: 0x0000.00000000 
                   01/01/1988 00:00:00

Start dump data blocks tsn: 0 file#: 1 minblk 417 maxblk 419
buffer tsn: 0 rdba: 0x004001a1 (1/417)
scn: 0x0004.6c47f014 seq: 0x01 flg: 0x04 tail: 0xf0140d01
frmt: 0x02 chkval: 0xa59e type: 0x0d=Compatibility segment
Header:  size 12  next rdba 0x0  entries 25  offset 536f
Compatibility entry for 'COMPATSG':
  Size: 24  Release 0x134217728  By 0x153092096
Dump of memory from 0x0AA84E34 to 0x0AA84E38
AA84E30          00000000                        [....]        
Compatibility entry for 'BOOTSTRP':
  Size: 24  Release 0x134217728  By 0x153092096
Dump of memory from 0x0AA84E4C to 0x0AA84E50
AA84E40                            00400179             [y.@.]
Compatibility entry for 'UNDODATA':
  Size: 36  Release 0x153092096  By 0x153092096
Dump of memory from 0x0AA84E64 to 0x0AA84E74
AA84E60          00000042 5221003E 6C47F00D      [B...>.!R..Gl]
AA84E70 00000004                            [....]