Usuário
User Process
orelha
Listener
Server Process
PGA

ORACLE INSTANCE

SGA

  • Shared Pool

    SQL_ID:  

  • DB Buffer Cache

  • Redo Log Buffer

PMON
SMON
DBWn
CKPT
LGWR
ARCn

data files

controlfile1.ctl
controlfile2.ctl

control files

Disco A

LOG1_A
LOG2_A

Disco B

LOG1_B
LOG2_B

redo log files

archived log files

ARC_01
ARC_02
ARC_03
ARC_04
ARC_05
ARC_06
parameter-file
undo

Oracle Database

Client
Server