【DataGuarad】擷取standby 庫的配置資訊的腳本

<b>從oracle MOS 上獲得一個關于擷取standby 庫的配置資訊的腳本</b>

Note 241438.1 Script. to Collect Data Guard Physical Standby Diagnostic Information

set echo off 

set feedback off 

column timecol new_value timestamp 

column spool_extension new_value suffix 

select to_char(sysdate,'Mondd_hhmi') timecol, 

'.out' spool_extension from sys.dual; 

column output new_value dbname 

select value || '_' output 

from v$parameter where name = 'db_name'; 

spool dgdiag_phystby_&amp;&amp;dbname&amp;&amp;timestamp&amp;&amp;suffix 

set lines 200 

set pagesize 35 

set trim on 

set trims on 

alter session set nls_date_format = 'MON-DD-YYYY HH24:MI:SS'; 

set feedback on 

select to_char(sysdate) time from dual; 

set echo on  

-- 

-- ARCHIVER can be  (STOPPED | STARTED | FAILED) FAILED means that the archiver failed 

-- to archive a -- log last time, but will try again within 5 minutes. LOG_SWITCH_WAIT 

-- The ARCHIVE LOG/CLEAR LOG/CHECKPOINT event log switching is waiting for. Note that  

-- if ALTER SYSTEM SWITCH LOGFILE is hung, but there is room in the current online  

-- redo log, then value is NULL  

column host_name format a20 tru 

column version format a9 tru 

select instance_name,host_name,version,archiver,log_switch_wait from v$instance; 

-- The following select will give us the generic information about how this standby is 

-- setup.  The database_role should be standby as that is what this script. is intended  

-- to be ran on.  If protection_level is different than protection_mode then for some 

-- reason the mode listed in protection_mode experienced a need to downgrade.  Once the 

-- error condition has been corrected the protection_level should match the protection_mode 

-- after the next log switch. 

column ROLE format a7 tru 

select name,platform_id,database_role role,log_mode,

       flashback_on flashback,protection_mode,protection_level  

from v$database;

-- Force logging is not mandatory but is recommended.  Supplemental logging should be enabled 

-- on the standby if a logical standby is in the configuration. During normal  

-- operations it is acceptable for SWITCHOVER_STATUS to be SESSIONS ACTIVE or NOT ALLOWED. 

column force_logging format a13 tru 

column remote_archive format a14 tru 

column dataguard_broker format a16 tru 

select force_logging,remote_archive,supplemental_log_data_pk,supplemental_log_data_ui, 

switchover_status,dataguard_broker from v$database;  

-- This query produces a list of all archive destinations and shows if they are enabled, 

-- what process is servicing that destination, if the destination is local or remote, 

-- and if remote what the current mount ID is. For a physical standby we should have at 

-- least one remote destination that points the primary set but it should be deferred.

COLUMN destination FORMAT A35 WRAP 

column process format a7 

column archiver format a8 

column ID format 99 

select dest_id "ID",destination,status,target, 

archiver,schedule,process,mountid  

from v$archive_dest; 

-- If the protection mode of the standby is set to anything higher than max performance

-- then we need to make sure the remote destination that points to the primary is set

-- with the correct options else we will have issues during switchover.

select dest_id,process,transmit_mode,async_blocks, 

net_timeout,delay_mins,reopen_secs,register,binding 

-- The following select will show any errors that occured the last time an attempt to 

-- archive to the destination was attempted.  If ERROR is blank and status is VALID then 

-- the archive completed correctly. 

column error format a55 tru 

select dest_id,status,error from v$archive_dest;

-- Determine if any error conditions have been reached by querying thev$dataguard_status 

-- view (view only available in 9.2.0 and above): 

column message format a80 

select message, timestamp 

from v$dataguard_status 

where severity in ('Error','Fatal') 

order by timestamp; 

-- The following query is ran to get the status of the SRL's on the standby.  If the

-- primary is archiving with the LGWR process and SRL's are present (in the correct

-- number and size) then we should see a group# active.

select group#,sequence#,bytes,used,archived,status from v$standby_log;

-- The above SRL's should match in number and in size with the ORL's returned below: 

select group#,thread#,sequence#,bytes,archived,status from v$log; 

-- Query v$managed_standby to see the status of processes involved in the 

-- configuration.

select process,status,client_process,sequence#,block#,active_agents,known_agents

from v$managed_standby;

-- Verify that the last sequence# received and the last sequence# applied to standby 

-- database.

select al.thrd "Thread", almax "Last Seq Received", lhmax "Last Seq Applied"

from (select thread# thrd, max(sequence#) almax

      from v$archived_log

      where resetlogs_change#=(select resetlogs_change# from v$database)

      group by thread#) al,

     (select thread# thrd, max(sequence#) lhmax

      from v$log_history

      where first_time=(select max(first_time) from v$log_history)

      group by thread#) lh

where al.thrd = lh.thrd;

-- The V$ARCHIVE_GAP fixed view on a physical standby database only returns the next 

-- gap that is currently blocking redo apply from continuing. After resolving the

-- identified gap and starting redo apply, query the V$ARCHIVE_GAP fixed view again 

-- on the physical standby database to determine the next gap sequence, if there is

-- one. 

select * from v$archive_gap; 

-- Non-default init parameters. 

set numwidth 5 

column name format a30 tru 

column value format a50 wra 

select name, value 

from v$parameter 

where isdefault = 'FALSE';

spool off