How to access alert log--- $ORACLE_HOME/saptrace/background

Hi,
Using the Alert log under $ORACLE_HOME/saptrace/background.
Is it possible to determine whether the database is currently in an intermediate start or stop phase.???
If it so how can i proceed the process for alert log?
with regards
vijay

Dear Vijay ,
Q ) Is it possible to determine whether the database is currently in an intermediate start or stop phase.??? - Yes log will provide the information .
Q ) If it so how can i proceed the process for alert log? ->
Under $ORACLE_HOME/saptrace/background you will find the log file alertsid.log .
Regards ,
Santosh Karadkar

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>
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Hi there, have looked all over and not yet found the answer to my query. I have a database instance running at 10.2.0.4.0. There is a rougue alert-{ORACLE_SID}.log created in $ORACLE_HOME/dbs directory when an instance is started. Show parameter background_dump_dest points to the correct directory - $ORACLE_ADMIN/$ORACLE_SID/bdump wether using spfile or pfile. To confirm what is happening I shutdown the instance and deleted both alert logs from the two locations and restarted the instance. Again two alert logs were created. Can anyone please advise why this is happening. I have found threads suggesting that logs are created in $ORACLE_HOME/dbs as default if parameters are not set correctly, but this is creating an alert log in two locations at startup.
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Starting ORACLE instance (normal)
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
Shared memory segment for instance monitoring created
Picked latch-free SCN scheme 3
Autotune of undo retention is turned on.
IMODE=BR
ILAT =30
LICENSE_MAX_USERS = 0
SYS auditing is disabled
ksdpec: called for event 13740 prior to event group initialization
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System parameters with non-default values:
processes                = 250
__shared_pool_size       = 92274688
__large_pool_size        = 4194304
__java_pool_size         = 4194304
__streams_pool_size      = 0
nls_language             = ENGLISH
nls_territory            = UNITED KINGDOM
sga_target               = 327155712
control_files            = /oradata/10.2.0/DBAASS06/DBAASS06ctrl01.ctl, /oradata/10.2.0/DBAASS06/DBAASS06ctrl02.ctl
db_block_size            = 8192
__db_cache_size          = 218103808
compatible               = 10.2.0.4.0
log_archive_dest_1       = LOCATION=/oradata/10.2.0/DBAASS06/archive
log_archive_format       = DBAASS06%t_%s_%r.dbf
db_file_multiblock_read_count= 16
undo_management          = AUTO
undo_tablespace          = UNDO
remote_login_passwordfile= EXCLUSIVE
db_domain                = bctn.wheatley-associates.co.uk
utl_file_dir             = *
job_queue_processes      = 10
background_dump_dest     = /orahome/app/oracle/admin/DBAASS06/bdump
user_dump_dest           = /orahome/app/oracle/admin/DBAASS06/udump
core_dump_dest           = /orahome/app/oracle/admin/DBAASS06/cdump
session_max_open_files   = 20
sort_area_size           = 65536
db_name                  = DBAASS06
db_unique_name           = DBAASS06
open_cursors             = 300
pga_aggregate_target     = 31457280
PMON started with pid=2, OS id=13977
PSP0 started with pid=3, OS id=13979
MMAN started with pid=4, OS id=13981
DBW0 started with pid=5, OS id=13983
DBW1 started with pid=6, OS id=13985
LGWR started with pid=7, OS id=13987
CKPT started with pid=8, OS id=13989
SMON started with pid=9, OS id=13991
RECO started with pid=10, OS id=13993
CJQ0 started with pid=11, OS id=13995
MMON started with pid=12, OS id=13997
MMNL started with pid=13, OS id=13999
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Wed Jul 24 09:30:01 2013
Setting recovery target incarnation to 2
Wed Jul 24 09:30:01 2013
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Wed Jul 24 09:30:01 2013
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Wed Jul 24 09:30:01 2013
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Wed Jul 24 09:30:01 2013
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Wed Jul 24 09:30:01 2013
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Wed Jul 24 09:30:01 2013
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[oracle@el64dev03 bdump]$
There is also a trace file created -
[oracle@el64dev03 bdump]$ cat dbaass06_lgwr_13987.trc
/orahome/app/oracle/admin/DBAASS06/bdump/dbaass06_lgwr_13987.trc
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORACLE_HOME = /orahome/app/oracle/product/10.2.0/db_1
System name:    Linux
Node name:      el64dev03.bctn.wheatley-associates.co.uk
Release:        2.6.32-300.39.2.el5uek
Version:        #1 SMP Wed Dec 19 14:56:59 PST 2012
Machine:        x86_64
Instance name: DBAASS06
Redo thread mounted by this instance: 1
Oracle process number: 7
Unix process pid: 13987, image: [email protected]
*** 2013-07-24 09:30:01.622
*** SERVICE NAME:() 2013-07-24 09:30:01.622
*** SESSION ID:(275.1) 2013-07-24 09:30:01.622
Maximum redo generation record size = 156160 bytes
Maximum redo generation change vector size = 150676 bytes
tkcrrsarc: (WARN) Failed to find ARCH for message (message:0x10)
tkcrrpa: (WARN) Failed initial attempt to send ARCH message (message:0x10)
in $ORACLE_HOME/dbs/alert_DBAASS06.log shows -
[oracle@el64dev03 dbs]$ cat alert_DBAASS06.log
Wed Jul 24 09:29:19 2013
Adjusting the default value of parameter parallel_max_servers

Thanks for the reply. The cloned database source looks like it uses spfile on startup on the test box, but as I hadn't checked this at the time it was cloned, the spfile was not copied over, so I'm assuming it would have used the default init.ora created which had the correct dump dest defined. As for the new database, it was created from scratch, so I don't see why this should not work correctly. Unfortunately as I am new to this establishment, I have no history as to how Oracle was installed on either machine or how any of the other databases were created, though I do understand that many may have been cloned.
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Hi,
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Timestamp=Feb 26, 2008 12:06:03 AM EST
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What's your oracle version?
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3- show alert -P "MESSAGE_TEXT LIKE '%ORA-%' and originating_timestamp > systimestamp-51 " -term : to find all the ORA-% errors in the alert file during the last 51 days,
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ADRCI: Release 11.2.0.1.0 - Production on Wed May 4 10:24:54 2011
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
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ORA-01435: user does not exist
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ORA-12012: error on auto execute of job 29
ORA-01435: user does not exist
2011-03-15 11:39:37.571000 +01:00
opiodr aborting process unknown ospid (31042) as a result of ORA-609
2011-03-15 12:04:15.111000 +01:00
opiodr aborting process unknown ospid (3509) as a result of ORA-609
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How to read trace files alerted in the alert.log file

Hello,
My alert.log file indicated multiple trace files to review. How to read these trace files to understand the cause of errors. Do I open the trace files with vi and do a search for 'ORA-' error. Are there tools to read and understand trace files. Thank you.

It depends what kind of trace file it is.
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How to initiating entry in alert.log?

Hallo,
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How to access alert log--- $ORACLE_HOME/saptrace/background

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