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maximum protected phsical standy database

  • From: <A.Bahar@xxxxxxxxxxxxxxxxxxxxxx>
  • To: <Oracle-L@xxxxxxxxxxxxx>
  • Date: Wed, 1 Dec 2004 18:14:31 +0100
  =20
   I have configured a physical standby database in maximum performance =
mode by=20
using ARCH. I have tested and It worked.

  Then I wanted to turn on "maximum protection mode". After I set =
parameters ,=20
I issued "alter database set standby database to maximize protection;".

  And I have tested configuration while stanby database up and running. =
Redo=20
logs have been fetched from primary to standby site and they have been =
applied.

  And then I have shutdown standby server. I have shutdown listener on =
standby=20
site. And I have issued "alter system swich logfile;". Andddd... It has=20
switched. Primary database did not shutdown as explained in metalink =
note:239100.1.

   Why...? What is the wrong ? How can I realize a "maximum protected =
physical standby database"
   Do you have any idea ?
   Is there any thing such "max.protected.phsy.standy.database" in real =
life or is it only a fable in oracle documentation which is read to =
children before they sleep.

Rgds.
Arslan BAHAR.

Parameters on primary site ;
---------------------------------------------------------------
db_name =3D ODG1
instance_name =3D ODG1
service_names =3D ODG1.db.corp.dir
db_domain =3D db.corp.dir
log_archive_start =3D TRUE
remote_archive_enable =3D TRUE
log_archive_format =3D "log%S_%T.arc"
log_archive_dest_1 =3D "LOCATION=3D/disk1/oradata/admin/odg1/arch"
log_archive_dest_state_1 =3D enable
log_archive_dest_2 =3D "SERVICE=3Dodg2 LGWR SYNC AFFIRM"
log_archive_dest_state_2 =3D enable
---------------------------------------------------------------
parameters on standby  side
---------------------------------------------------------------
db_name =3D ODG1
instance_name =3D ODG2
service_names =3D ODG2.db.corp.dir
db_domain =3D db.corp.dir
log_archive_start =3D TRUE
log_archive_format =3D "log%S_%T.arc"=20
log_archive_dest_1 =3D "LOCATION=3D/disk1/oradata/admin/odg2/arch"
log_archive_dest_state_1 =3D enable
standby_archive_dest =3D "/disk1/oradata/admin/odg2/arch"
db_file_name_convert =3D=20
("/disk1/oradata/odg1/","/disk1/oradata/odg2/")
log_file_name_convert =3D=20
("/disk1/oradata/odg1/","/disk1/oradata/odg2/")
standby_file_management =3D Auto
control_files =3D=20
("/disk1/oradata/odg2/ctrl/odg2_cntrl01.ctl","/disk1/oradata/odg2/ctrl/od=
g2_cnt
r
l02.ctl")
-----------------------------------------------------------------------
Protection mode of standby database=20
---------------------------------------------
SQL> select=20
name,open_mode,protection_mode,protection_level,database_role,switchover_=
status

from v$database
2 ;
NAME OPEN_MODE PROTECTION_MODE PROTECTION_LEVEL DATABASE_ROLE
--------- ---------- -------------------- -------------------- =
----------------
SWITCHOVER_STATUS
------------------
ODG1 MOUNTED MAXIMUM PERFORMANCE MAXIMUM PERFORMANCE PHYSICAL STANDBY
NOT ALLOWED
SQL>=20
---------------------------------------------------------
--
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