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ASM disk group not mount

User_FDO3GSep 4 2012 — edited Sep 19 2012
hi,
we are using oracle 11.2.0.3.0 on solaris 10, using two diskgroup Data1 and Data2 for asm from which a disk group Data1 cant be mounted my database is down and show below message when try to startup facing this issue after installing oracle 10g on same server which uses new10g diskgroup.

ORA-01078: failure in processing system parameters
ORA-01565: error in identifying file '+DATA1/zidw/spfilezidw.ora'
ORA-17503: ksfdopn:2 Failed to open file +DATA1/zidw/spfilezidw.ora
ORA-15056: additional error message
ORA-17503: ksfdopn:2 Failed to open file +DATA1/zidw/spfilezidw.ora
ORA-15001: diskgroup "DATA1" does not exist or is not mounted

ASM error
********
SQL> select name,state from v$asm_diskgroup;

NAME STATE
------------------------------ -----------
DATA1 DISMOUNTED
DATA2 MOUNTED
NEW10G DISMOUNTED

SQL> alter diskgroup DATA1 mount;
alter diskgroup DATA1 mount
*
ERROR at line 1:
ORA-15032: not all alterations performed
ORA-15017: diskgroup "DATA1" cannot be mounted
ORA-15063: ASM discovered an insufficient number of disks for diskgroup "DATA1"
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Locked on Oct 17 2012
Added on Sep 4 2012
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