1. High-availability rows
(1) Ha (High availability ha)
(2) RAC (Oracle Real application Cluster)
(3) DG (DATA Guard)
(4) Oracle Replication
(5) Raid and mirrored drives
2. Backup and Recovery
(1) Collect backup and recovery policy requirements.
(2) Carefully design backup and recovery plan.
1 Our usual backups are physical backups.
Backup:
(1) Type
Physical backup
Logical backup
(2) Database status
A. Online backup (hot) and offline backup (cold)
B. Inconsistent backups and consistent backups
2 does Rman not open an archive to backup? Can be backed up, only in the Mount state. This is the cold standby of Rman.
(3) Full backup archive mode, non-archive mode
Table Space Backup
Data file backup
Control file Backup
Archive log file backup
Oracle Recovery
(1) Type of error
User error operation
Errors caused by system processes
Instance causes an error
Errors caused by storage media
(2) Instance recovery: Cache recovery (roll forward), 2 transaction recovery (roll back)------done by Smon
Media recovery
(3) Recovery mode: Full recovery
Do not complete recovery active passive
Oracle Backup Basic noun