1. RMAN in 12c: The Next
Generation
Presented by : Gustavo René Antúnez
Oracle DBA
The Pythian Group
April, 2014

2. About Pythian
• Recognized Leader:
– Global industry-leader in remote database administration services and
consulting for Oracle, Oracle Applications, MySQL and Microsoft SQL Server
– Work with over 250 multinational companies such as Forbes.com, Fox Sports,
Nordion and Western Union to help manage their complex IT deployments
• Expertise:
– One of the world’s largest concentrations of dedicated, full-time DBA
expertise. Employ 9 Oracle ACEs/ACE Directors.
– Hold 7 Specializations under Oracle Platinum Partner program, including
Oracle Exadata, Oracle GoldenGate & Oracle RAC
• Global Reach & Scalability:
– Around the clock global remote support for DBA and consulting, systems
administration, special projects or emergency response

3. About Me
– Oracle DBA
– Part of the First Oracle
Associate Group
• Started with Version 9.2 in 2004
– With The Pythian Group for the
last year
– Movie Fanatic
– Music Lover
– Bringing the best from México
(Mexihtli) to the rest of the world
and in the process
photographing it :)
– reneantunez.com
– @grantunez
• #CLV14

4. Where do I come from?

5. How did I get to be a DBA

6. Happiest Job of 2014!*
*http://www.forbes.com/sites/susanadams/2014/03/20/the-happiest-and-unhappiest-jobs-in-2014/
Work-life
balance
Relationship with
boss and co-
workers
Daily tasks
Job
resources
Field will grow by
15% between
2012 and 2022
DBA can be the
key driver of
success

7. What is a Pluggable Database?
• Container database (CDB) is an Oracle
database that includes zero, one, or many
customer-created Containers or Pluggable
Databases.
• A pluggable Database (PDB) is a user-created
container holding the data and code for your
specific applications

8. What is a Pluggable Database?
Root
(CDB$ROOT)
CDB
hrpdb salespdb
Seed
(PDB$SEED)
CDB
Administrator
Sales Application
HR Application
PDB
Administrator
for hrpdb
PDB
Administrator
for salespdb
Logical
Physical
Database
Control
Files
Data
Files
Online
Redo Log
10101 10101
Archived
Redo Log
Flashback
Log

10. What is RMAN?
• Oracle utility to perform backup and recovery, available
since version 8
RMAN Utility
Channel
Target
DB
Server
Session
MML
DISK
Executable found in
$ORACLE_HOME/bin
recover.bsq
(library file)

11. What do you need to
backup?
• Critical
– Data files
– Control files
– Archived Redo logs (If Inconsistent Backup taken)
– Root DB (12c)
• In line with the DR strategy
– Parameter File (pfile or spfile)
– Block Change Tracking File
– ORACLE_HOME/GRID_HOME/
configuration files
– tnsnames.ora / listener.ora/ sqlnet.ora
Not through
RMAN

12. How does an RMAN
backup work?
Datafiles
1 MB 1 MB
1 MB 1 MB
1 MB 1 MB
1 MB 1 MB
1 MB 1 MB
1 MB 1 MB
1 MB 1 MB
1 MB 1 MB
Input I/O Buffers
Validation
Compression
Encryption
1 MB 1 MB
1 MB 1 MB
Channel
Output Buffers Backup Piece
1
2
3
4
Read Phase Copy Phase Write Phase

13. Benefits of the
RMAN Catalog
RMAN
Target
DB
Target
DB
Target
DB
Catalog
DB
Repository for multiple incarnations of a
single target metadata about RMAN backups
Store RMAN backup scripts
Another Database to keep control off
It can keep backup history
longer than the controlfile
can keep it
(Depends on value of
CONTROL_FILE_RECORD_KEEP_TIME)
Centralized
Reporting Purposes

14. What to consider before
configuring your RMAN backups
• Fast Recovery Area (FRA)
Size DB
BackupFRA Disk
Quota
Size of
Incremental
BU
Size of (n+1)
days of
Archived
Redo logs
Size of
controlfile
Size of Online
Redo* # of
Groups
Size of
Flashback
logs
DB_RECOVERY_FILE_DEST_SIZE DB_RECOVERY_FILE_DEST
Useful views
• V$FLASH_RECOVERY_AREA_USAGE
• V$RECOVERY_FILE_DEST

15. What to consider before
configuring your RMAN backups
• Catalog or no catalog Database
• ARCHIVELOG vs NOARCHIVELOG
• CONTROL_FILE_RECORD_TIME_KEEP
• Set NLS parameters accordingly
– Values from view V$NLS_PARAMETERS
– NLS_DATE_FORMAT='DD-MON-YYYY
HH24:MI:SS’
– NLS_LANG=american_america.we8iso8859p1

16. Configuring RMAN
Default Settings
•