When starting up your ASM instance, you receive the following error:SQL> startup pfile=$ORACLE_HOME/dbs/init+ASM.oraASM instance started -Total System Global Area 104611840 bytesFixed Size 1298220 bytes -Variable Size 78147796 bytes -ASM Cache 25165824 bytes -ORA-15032: not all alternations performedORA-15063: ASM discovered an insufficient number of disks for diskgroup DGROUP3ORA-15063: ASM discovered an insufficient number of disks for diskgroup DGROUP2ORA-15063: ASM discovered an insufficient number of disks for diskgroup DGROUP1In trying to determine the cause of the problem, you issue this query:SQL> show parameter asm -What is the cause of the error?
When Starting U 1 (106.78 KiB) Viewed 160 times
A. The ASM_DISKGROUPS parameter is configured for three disk groups: DGROUP1, DGROUP2, and DGROUP3. The underlying disks for these disk groups have apparently been lost.
B. The format of the ASM_DISKGROUPS parameter is incorrect. It should reference the disk group numbers, not the names of the disk groups
C. The ASM_POWER_LIMIT parameter is incorrectly set to 1. It should be set to the number of disk groups being attached to the ASM instance.
D. The ASM_DISKSTRING parameter is not set; therefore disk discovery is not possible. E. There is insufficient information to solve this problem.
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