Could not startup database because of controlfile

Question

Hi, all
I have an oracle 10.1.0.2 running on Redhat Linux E3.
I tried these steps to startup the database but failed.
[oracle@flulinux01 bdump]$ export $ORACLE_SID=+ASM
[oracle@flulinux01 bdump]$ sqlplus "/as sysdba"
SQL*Plus: Release 10.1.0.2.0 - Production on Tue Jan 22 11:04:16 2008
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 268435456 bytes
Fixed Size 778416 bytes
Variable Size 161750864 bytes
Database Buffers 104857600 bytes
Redo Buffers 1048576 bytes
ORA-00205: error in identifying controlfile, check alert log for more info
SQL>
I exported the $ORACLE_SID=orcl10g, and the result was the same.
The alert file is like this:
$ORACLE_HOME/dbs/alert_orcl10g.log
Tue Jan 22 09:06:24 2008
Running with 1 strand for Non-Enterprise Edition
Tue Jan 22 09:06:24 2008
Running without dynamic strand for Non-Enterprise Edition
Tue Jan 22 10:01:37 2008
Running with 1 strand for Non-Enterprise Edition
Tue Jan 22 10:01:37 2008
Running without dynamic strand for Non-Enterprise Edition
Tue Jan 22 11:04:19 2008
Running with 1 strand for Non-Enterprise Edition
Tue Jan 22 11:04:19 2008
Running without dynamic strand for Non-Enterprise Edition
And I tried perform these:
SQL> select * from v$asm_disk;
no rows selected
SQL> select * from v$asm_diskgroup;
no rows selected
It seems the ASM doesn't work, and the control files are in the ASM disk group. Is that the reason? The initorcl10g.ora is like this:
[root@flulinux01 dbs]# more initorcl10g.ora
processes=250
shared_pool_size=100663296
large_pool_size=8388608
java_pool_size=50331648
sga_target=268435456
#spfile='+DATADG/orcl10g/spfileorcl10g.ora'
control_files=(+DATADG/orcl10g/control01.ctl, DATADG/orcl10g/control02.ctl, DA
TADG/orcl10g/control03.ctl)
db_block_size=8192
db_cache_size=25165824
compatible=10.1.0.2.0
log_archive_dest_1='LOCATION=+RECOVERDG/orcl10g/'
log_archive_format=%t_%s_%r.dbf
db_file_multiblock_read_count=16
db_recovery_file_dest='+RECOVERDG'
db_recovery_file_dest_size=96758398976
undo_management=AUTO
undo_tablespace=UNDOTBS1
remote_login_passwordfile=EXCLUSIVE
#db_domain=world
dispatchers='(PROTOCOL=TCP)(SERVICE=orcl10gXDB)'
job_queue_processes=10
background_dump_dest=/opt/oracle/admin/orcl10g/bdump
user_dump_dest=/opt/oracle/admin/orcl10g/udump
core_dump_dest=/opt/oracle/admin/orcl10g/cdump
sort_area_size=65536
db_name=orcl10g
open_cursors=300
pga_aggregate_target=805306368
How to start it up? Any advice is highly appreciated!
Qian

Answer 1

Ops..... You are right!
[root@flulinux01 db_1]# ps -ef |grep pmon
oracle 23938 1 0 14:49 ? 00:00:00 asm_pmon_+ASM
root 23956 13312 0 14:49 pts/0 00:00:00 grep pmon
[oracle@flulinux01 bdump]$ export ORACLE_SID=+ASM
[oracle@flulinux01 bdump]$ sqlplus "/as sysdba"
SQL*Plus: Release 10.1.0.2.0 - Production on Tue Jan 22 14:48:43 2008
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Connected to an idle instance.
SQL> select * from v$asm_disk;
select * from v$asm_disk
ERROR at line 1:
ORA-01034: ORACLE not available
SQL> startup
ASM instance started
Total System Global Area 100663296 bytes
Fixed Size 777616 bytes
Variable Size 99885680 bytes
Database Buffers 0 bytes
Redo Buffers 0 bytes
ASM diskgroups mounted
SQL>
Now the +ASM disks are mounted...