alter error log:
Wed Apr 09 14:17:35 2014
WARNING: ASM communication error: op 0 state 0x0 (15055)
ERROR: direct connection failure with ASM
Wed Apr 09 14:22:35 2014
WARNING: ASM communication error: op 0 state 0x0 (15055)
ERROR: direct connection failure with ASM
Wed Apr 09 14:27:35 2014
WARNING: ASM communication error: op 0 state 0x0 (15055)
ERROR: direct connection failure with ASM
Wed Apr 09 14:32:36 2014
WARNING: ASM communication error: op 0 state 0x0 (15055)
ERROR: direct connection failure with ASM
The reason:
When a user asmdba group did not join login asm examples of the above error will be reported, usually access to asm disk unspecified cause while monitoring the user creates.
ASM Database Instance Is Reporting: “[WARNING: ASM communication error: op 0 state 0x0 (15055)]” (文档 ID 1665311.1)