Definitions related to ADRCI
Automatic Diagnostic Repository (ADR):
The ADR is a file-based repository for database diagnostic data such as traces, dumps, the alert log, health monitor reports, and more. Oracle Real Application Clusters environment with shared storage and ASM, each database instance and each ASM instance has a home directory within the ADR.The ADR's unified directory structure enables customers and Oracle Support to correlate and analyze diagnostic data across multiple instances and multiple products.
Problem:
A problem is a critical error in the database. Problems are tracked in the ADR. Each problem has a problem key and a unique problem ID.
Problem Key:
Every problem has a problem key, which is a text string that includes an error code (such as ORA 600) and in some cases, one or more error parameters. Two incidents are considered to have the same root cause if their problem keys match.
Incident Package:
An incident package (package) is a collection of data about incidents for one or more problems.
A package is a logical construct only, until you create a physical file from the package contents. That is, an incident package starts out as a collection of metadata in the Automatic Diagnostic Repository (ADR). As you add and remove package contents, only the metadata is modified. When you are ready to upload the data to Oracle Support, you create a physical package using ADRCI, which saves the data into a zip file.
ADR Home:
An ADR home is the root directory for all diagnostic data—traces, dumps, alert log, and so on—for a particular instance of a particular Oracle product or component.
ADR Base:
To permit correlation of diagnostic data across multiple ADR homes, ADR homes are grouped together under the same root directory called the ADR base.
Homepath:
All ADRCI commands operate on diagnostic data in the "current" ADR homes. More than one ADR home can be current at any one time.
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