EMC Backup Recovery
Systems
Transforming Oracle RMAN
Backup & Recovery
OUG Scotland 2013
Scott Butler
Advisory Systems Engineer
EMC BRS
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1
Data Protection Challenges for Oracle
1) Disk and Tape Capacity required to store many copies of
Oracle backups
2) Bandwidth required to move large database backups
across WAN for Disaster Recovery
3) Oracle database recovery operations demand extremely
reliable disk storage let alone countless tape media
4) Integration and management of RMAN and backup
infrastructure
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2
EMC BRS for Oracle Data Protection
1) Deduplication Enables Online Retention
–
Efficiently store weeks of backups on disk for rapid database
restores
–
Reduce dependence on tape for Oracle data protection
2) Replication Drives WAN-efficient Disaster Recovery
–
Time-to-DR minimized, enabling offsite recovery of databases
3) Data Invulnerability Architecture Ensures Reliable
Recovery
–
Provides much higher levels of hardware and software
protection than conventional tape, RAID and file systems
4) Flexible Integration with Oracle
–
Provides multiple interface options (NAS, Boost, VTL) for use
with Oracle data-protection best practices
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3
Purpose Built Backup Appliances (PBBA)
Open Systems + Mainframe Capacity
EMC
Others
Symantec
EMC
64.9%
IBM
HP
Quantum
2012 Total Market
1,340PB
Source: IDC Worldwide Quarterly Purpose Built Backup Appliance Tracker – Q42012
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4
PBBAs Transform Backup
SPEED
EFFICIENCY
SMARTER DR
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Reliably Meet Backup Windows
And Recovery SLAs
10-30x Less Backup Storage,
Consolidate And Simplify
Up To 99% Bandwidth Efficiency
Eliminates Trucking Tapes For DR
5
EMC BRS Oracle RMAN Backup Options
• Data Domain enables the industry’s most
advanced and flexible Oracle backup
solutions for DBA’s
1. Direct backups using DD Boost for RMAN
enables the fastest and most efficient
backup and recovery
2. Direct backups via NFS, dNFS and CIFS
3. Backup Apps with DD Boost for Avamar
4. Backup Apps with DD Boost for NetWorker
5. Collaborative backups between DBA and
Backup Admin
 Flexibility enables customers to choose the
best approach for their environment
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DD Boost for
Oracle RMAN
direct
backup to
Data Domain
Oracle RMAN
using EMC
backup
applications
Oracle RMAN
direct backup to
Data Domain
using NFS, dNFS
or CIFS
6
Data Domain
Introduction
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7
Introduction to Data Domain
Data Domain Functionality
Control Tier
Backup and
Archive
Applications
IBM
EMC
Symantec
CommVault
HP
Target Tier
Disaster Recovery Tier
CIFS, NFS,
NDMP, DD
Boost
Replication
Ethernet
Virtual Tape
Library (VTL) or
DD Boost over
Fibre Channel
Data Domain System
Data Domain System
Dell
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8
Introduction to Data Domain
Data Deduplication: Technology Overview
Friday Full Backup
A B C D A E F G
Backup
Data
Estimated
Reduction
Physical
1 TB
2–4x
250 GB
Monday Incremental
50 GB
7–10x
5 GB
Tuesday Incremental
50 GB
7–10x
5 GB
Wednesday Incremental
50 GB
7–10x
5 GB
Thursday Incremental
50 GB
7–10x
5 GB
Second FRIDAY FULL
1 TB
50–60x
18 GB
2.2 TB
7.6x
288 GB
FRIDAY FULL
Mon Incremental
Tues Incremental
Weds Incremental
Thurs Incremental
A
C
E
A
B
H
B
G
C
Logical
I
J
K
Second Friday Full Backup
B C D E F
L G H
TOTAL
A BCDE FGH I J K L
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9
Introduction to Data Domain
SISL Scalable Architecture
DD990 (2012)
8000
Throughput
From DD200 to DD990:
• Throughput: ~200x
• Capacity:
~450x
MB/sec.
40
DD200 (2004)
1.25
Addressable Capacity in TB
570
>PB
Post-RAID (Physical)
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10
Introduction to Data Domain
Data Integrity: Data Invulnerability Architecture
End-to-end data verification
Checksum
Deduplication, write to disk
Verify
Self-healing file system
Cleaning
Expired data
Defrag
Verify
Generate
Checksum
Verify
Data
File System
Deduplication
Local Compression
RAID
Verify the file
system metadata
integrity
Verify user data
integrity
Verify stripe
integrity
Other
RAID 6
NVRAM
Snapshots
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End-to-end data verification
11
Introduction to Data Domain
Network Efficient Replication for True Disaster Recovery
1–5%
DB
Flexible replication
One-to-many
Many-to-one
Bi-directional
System-tosystem
 Cascaded




Data Domain system
Archive data
Backup data
Data Domain system
1–5%
WAN
1–5%
Home
Data Domain system
Source:
Remote sites
95–99% cross-site bandwidth reduction
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Home
Data Domain
DD890
Destination:
Data Center Hub
Supports hundreds
of remote sites
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Introduction to Data Domain
Data Domain BOOST
DD
Boost
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• Distributes parts of deduplication process to
backup server or application clients
• Increases aggregate throughput by up to 2x
• Enables more efficient resource utilization
• Provides application control of Data Domain
replication process
• Supports majority of backup software
market and native utilities in industryleading database utilities
13
Introduction to Data Domain
Protection Storage: EMC Data Domain for Backup and Archive Data
 Low $$/Petabyte
–
Efficient backup and archive storage with deduplication
technology
 Reliability: Storage of last resort
–
–
Backup
Data
Data Invulnerability Architecture
RAID 6
 Fast, Efficient Scalability with data growth
–
–
Industry-leading ingest of backup and archive data
Up To 100 PB of logical capacity in a single system
 Efficient and Scalable Disaster Recovery
Archive
Data
–
–
Reduce bandwidth requirements by up to 99 percent
Replication from up to 270 remote systems to a single system
 Seamless Integration
–
Qualified with all leading backup and archive applications
 Encryption and compliance retention requirements
–
–
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Meets compliance requirements for archive retention
Both internal and external key management with RSA
14
Oracle Backup with
Data Domain Boost
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15
Oracle Backup and Recovery
RMAN Directly Over Data Domain Boost
Database Admin
Oracle Database
Oracle RMAN
DD Boost
Data Domain System
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16
DD Boost For RMAN
What Gets Distributed?
Without DD Boost
RMAN
1
ID Segment
2
Unique?
3
Compress
4
Write
LAN
Oracle Server
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17
DD Boost For RMAN
What Gets Distributed?
1
3
ID Segment
50% Faster Backups
20 to 40% Lower CPU Utilization
99% Less LAN Bandwidth
With DD Boost
2
Unique?
4
Write
Compress
RMAN
DD Boost
LAN
Oracle Server
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18
Data Domain Replication
Without DD Boost managed file replication
Oracle Server
Replicate
RMAN Catalog
Copy 1
Copy ?
Copy 1
Copy ?
RMAN Is Not Aware Of Copy 2
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19
DD Boost Managed File Replication
With DD Boost managed file replication
Oracle Server
DD Boost
RMAN Catalog
Copy 1
Copy 2
Copy 1
Copy 2
RMAN Controls The Creation of Backup Copies
All Copies Are Cataloged By RMAN
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20
DD Boost Advanced Load Balancing &
Failover
Without Advanced Load Balancing & Failover
Oracle
Server A
Oracle
Server B
Oracle
Server C
Each Server Connects on a Dedicated Link
No Ability To Balance Streams Across Network Links
Job Failures From Network Failures
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21
DD Boost Advanced Load Balancing &
Failover
With Advanced Load Balancing & Failover
Oracle
Server A
DD Boost
Oracle
Server B
DD Boost
Oracle
Server C
DD Boost
All Servers Connect To The Same Interface
Streams Load Balanced Across Network Links
Transparent Link Failover For Network Failures
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22
Oracle Backup using
RMAN Incremental Merge
with Data Domain
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23
Oracle RMAN Incremental Merge
To traditional SAN or NAS storage
DB
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
• Enables full recovery from the latest merge, lose all previous fulls
• Making a copy of a full each day is costly
Incremental
Sun
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Mon
Tue
Wed
Thu
Fri
Sat
24
Oracle RMAN Incremental Merge
Impact of EMC Data Domain with Fastcopy feature
DB
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
• Quickly creates a copy of last full using a fraction of storage
• Maintain full copies for each day enabling easier recovery
Fastcopy
Incremental
Sun
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Mon
Tue
Wed
Thu
Fri
Sat
25
Data Domain for Oracle RMAN
Boost versus NFS/dNFS
Consider RMAN with
Data Domain Boost when:
– Full backups are recommended;
especially w/ high change rate *
– Time to scan entire database is
not a concern
– NFS security or mount point
failure is a concern
– RMAN managed DR is a
requirement
– Oracle 10g and 11g environments
Consider RMAN via NFS/dNFS
with Data Domain when:
– Incremental merge is preferred
when change rate is low *
– Time to scan entire database is
a concern
– Network link failure is rare or
job restart is acceptable
– Backup/Restore is the only
requirement; DR is not
– When the environment is Oracle
11g with dNFS
DBA’s have complete control over their own Database Backups &
Recoveries and with a greater number of backup copies stored
* Oracle recommends full if incremental is more than 20%
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26
The EMC BRS, RMAN Catalog Assessment
 Engage with your local EMC BRS Systems Engineer
to better understand the health and statistics of your
Oracle backups
 Identify slow database backups and frequent failures
 Helps to provide sizing inputs to accurately size a
new Oracle tape free backup solution
– Size of 1 day’s full backup across all databases
– Size of 1 day’s archive log backups across all databases
– Identify daily change rate
 Identify whether compression and/or encryption are
in use
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27
A happy customer…
“Thanks to Data Domain, backup performance has been
significantly enhanced, while data storage requirements
have been reduced by 96 percent…The DBAs have control
of their backups and they are very happy with that.”
Nancy Magers
Associate Director for Disaster Recovery
Brown University
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28
and another happy customer…
“In a private cloud, you have to look at the storage and backup
as hand in glove because of the shared infrastructure. With EMC
Data Domain, its been a seamless process to integrate backup
with our virtualized infrastructure. We haven’t had a single
issue, and our Oracle backups and restores are so much faster
and easier to manage.”
Tony Vaden
Vice President and CIO
American Tire Distributors
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29
For more information…
•
http://www.emc.com/collateral/hardware/white-papers/h10683-ddboost-oracle-rman-tech-review-wp.pdf
•
http://www.emc.com/backup-and-recovery/data-domain/index.htm
•
http://www.emc.com/collateral/software/white-papers/h7219-datadomain-data-invul-arch-wp.pdf
•
http://www.emc.com/collateral/analyst-reports/idc-worldwide-purposebuilt-backup-appliance.pdf
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30
Q&A
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31
Oracle dNFS (Direct Network File System)
• New in Oracle 11g
• To enable, you must still NFS mount the
remote storage on NAS or Data Domain
(using OS).
• Oracle configuration files tell Oracle
database to manage NFS read/write via
Oracle kernel rather than operating
system.
• dNFS aggregates NIC cards with no OS
config needed. Great performance.
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