ACFSK-00104
All mirrors of ACFS metadata are lost, likely due to multiple storage failures.
Cause
ASM has overwritten the disk offset with a pattern indicating that too many mirror copies were lost due to offline disks, and no data recovery was possible given the redundancy level.
Action
Restore the ACFS file system from backup. Run the Oracle Trace File Analyzer (TFA) Collector and contact Oracle Support Services.