Oracle Database
An archiver failure can block ordinary connections to protect recovery consistency. The first task is to identify the failing destination and its error.
RMAN Backup & Recovery1 นาทีในการอ่าน
อ่านบทความ : ORA-00257: investigate the archiver error behind restricted logins
Oracle Database
An encrypted database or backup can be unrecoverable without the required keys. Include keystore access in the recovery design and test.
RMAN Backup & Recovery1 นาทีในการอ่าน
อ่านบทความ : Check keystore readiness before relying on encrypted recovery
Oracle Database
An OPEN RESETLOGS creates a new recovery branch that affects backup and recovery selection. Verify the intended lineage before restoring older content.
RMAN Backup & Recovery1 นาทีในการอ่าน
อ่านบทความ : Check database incarnations when RMAN selects unexpected backups
Oracle Database
A recovery objective includes locating media, restoring, applying redo and validating the service. Metadata inspection is only the planning stage.
RMAN Backup & Recovery1 นาทีในการอ่าน
อ่านบทความ : Turn a backup success into an end-to-end recovery drill
Oracle Database
A connection may reach a primary, standby or a database in an unexpected open mode. Establish the current role before planning any action.
Data Guard & High Availability1 นาทีในการอ่าน
อ่านบทความ : Confirm database role before diagnosing a Data Guard issue
Oracle Database
A standby may receive redo late or stop receiving it entirely. Interpret the lag value with the age of its source data.
Data Guard & High Availability1 นาทีในการอ่าน
อ่านบทความ : Measure Data Guard transport lag with fresh timestamps
Oracle Database
A standby can receive redo promptly while recovery applies it slowly. Compare apply and transport metrics rather than treating all lag as network latency.
Data Guard & High Availability2 นาทีในการอ่าน
อ่านบทความ : Separate Data Guard apply lag from redo transport delay
Oracle Database
A missing redo range can prevent managed recovery from advancing. Inspect the gap view before manually copying files.
Data Guard & High Availability1 นาทีในการอ่าน
อ่านบทความ : Identify a blocking archived-log gap on a standby
Oracle Database
A standby connection issue often leaves a useful error at the sending destination. Inspect enabled destinations on the primary.
Data Guard & High Availability1 นาทีในการอ่าน
อ่านบทความ : Read primary-side archive destination errors before changing transport
Oracle Database
A standby may be mounted correctly while redo apply is stopped or waiting. Inspect the Data Guard processes in the appropriate database.
Data Guard & High Availability1 นาทีในการอ่าน
อ่านบทความ : Inspect Data Guard recovery processes using the current process view
Oracle Database
A broker warning summarizes a configuration condition but usually needs database-specific detail. Start with the managed configuration view.
Data Guard & High Availability1 นาทีในการอ่าน
อ่านบทความ : Use the Data Guard broker summary as an entry point
Oracle Database
A configuration-wide warning may originate from only one member or property. Collect the detailed state before changing transport settings.
Data Guard & High Availability1 นาทีในการอ่าน
อ่านบทความ : Inspect a specific Data Guard broker member in detail