This metric category contains the metrics representing errors that may affect the operation of the ASM, for example, archiver hung, media failure, and so on as recorded in the ASM alert log file. The alert log file has a chronological log of messages and errors.
Each metric signifies that the ASM being monitored has detected a critical error condition that may affect the normal operation of the ASM and has generated an error message to the alert log file since the last sample time. The Support Workbench in Enterprise Manager may contain more information about the error.
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