RAC Backup and Recovery

Backup and Recovery
—————————-
1.RMAN
———–
>Full backup
>Incremental/Diffrential Backup
>Compressed Backup

Configuration Modes:

>No catalog
>catalog

————————–
2.Physical Backup
————————–
>Cold Backup/offline backup/consistent backup
>Hot Backup/online/inconsistent

—————————-
3.Logical Backup
—————————-
Traditional Logical i.e;
>exp
>imp

and

Datapump Utilities
>expdp
>impdp

Note: If the database storage area loacation is ASM then only logical and RMAN backups
are possible.
>If the database storage are location is CFS all the above backups are possible.
>In a Rac system see that channels are equally distributed among all the instances.
>In some environments an instance is totally dedicated for RMAN backups.

example: OCR BACKUP
$ocrconfig -export (in 10g)
$ocrconfig -export (11g) Note:online backup is possible in RAC.
Voting disk
$dd command

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s