Backup & Recovery for Exadata

Fran NavarroPrincipal Sales Consultant

Feb 2012

Agenda

• Backup & Recovery Fundamentals• Oracle Backup Tools• Backup Strategies for Exadata

• Data loss exposure­ ESG estimates that 1 in 7 (14%) backups and 1 in 6 (17%)

restores fail.*

• Meeting SLA’s­ Shrinking backup windows; slow recovery processes

• Reducing costs­ Reducing both CAPEX & OPEX while improving staff efficiency

• Complexity­ Complexity of BU&R process and the storage environment

• Data growth­ Compounding year over year

Business Drivers Behind BackupWhat keeps our customers awake at night…

*Enterprise Strategy Group 2008

Fundamental Data ProtectionRule of 3

• 1st Line of Defense (Applications, Systems)– Typically data deletion, logical corruption or a virus– Look at the RPO. The majority of critical application recovery is likely to

come from the snapshot on the same tier of storage

• 2nd Line of Defense (Building, Site, Region)– HW failure & Disaster Recovery - failover to a remote site– Circumstances will dictate whether it should be disk and/or tape– Remote disk mirroring provides a physical copy of the data, but does not

provide logical data protection (it replicates corruption immediately!)

• Last Line of Defense – TAPE!– The last chance to avoid permanent data loss– Data preservation much more important than recovery time

“3 Copies of the Data on 2 different medias with 1 offsite”

Fundamental Backup and Recovery

Data Loss(Recovery Point Objective)

Downtime(Recovery Time Objective)

Hrs Mins SecsWks Days HrsMinsSecs WksDays

Flashback Database

Fast point-in-time recovery strategy

Eliminate the need to restore a whole database backup

Continuous data protection for databaseOptimized, before-change block loggingRestores just changed blocksReplay log to restore DB to desired time

It’s fast - recover in minutes, not hours

It’s easy - single command restoreFlashback Database to ‘2:05 PM’`

“Rewind” button for the Database“Rewind” button for the DatabaseData Files FlashbackLog

NewBlock

Version

Write

OldBlockVersion

Database

Instance

Database

Instance

Oracle Recovery Manager (RMAN)Oracle-integrated Backup & Recovery Engine

• Intimate knowledge of database file formats and recovery procedures

• Manages and automates the backup, restore, and recovery policies and process

• Catalog all backup and recovery activities

• Operates online and in parallel for fast processing

• Corrupt block detection during backup and restore with the ability to validate backups

• Integrated with Enterprise Manager, Oracle Secure Backup, and third party backup products

Oracle Enterprise Manager

RMAN

Database

Fast Recovery Area

Tape Drives

OracleSecure Backup

Oracle Secure Backup (OSB) Enterprise Tape Backup Management

Protects Entire IT Environment

• Built-in Oracle Integration

• 25 – 40% faster than leading competition

• 4X less expensive than comparable products

• Supports Oracle Database 11g through Oracle 9i

Oracle Database

RMAN Integration

Oracle Secure BackupFile System Data

OracleEnterprise Manager

Tape Library

Virtual TapeLibrary

Centralized Tape Backup Management

Exadata BackupBackup Options for Exadata

Exadata Database Machine

Exadata Expansion

Oracle Sun StorageTek

Tape Library

ZFSStorage

Appliance(ZFS-SA)

Exadata Backup (Fastest)• RTO: Immediate• RPO: Lossless• Fastest option using Inifiniband to another Exadata machine

ZFS Storage Appliance Backup (Most Flexible)• RTO: Next to Immediate• RPO: Last transaction• Multiple network connectivity & data service options

Tape Backup (Most Economical)• RTO: Hours• RPO: Last Transaction Backup • Best economics on cost/GB and offers removable offsite

capability

Backup Options for ExadataCustomer choice depending upon objectives & budget

InfiniBand Network

Oracle ExadataStorage Cells

Oracle Exadata Database Machine

Exa-Backup with ExadataUsing additional Storage Cells - Highest Performance

• Requirements for immediate data restore capabilities and reduced backup windows

• Primarily data protection against user/logical errors (Flashback)

• Allocate additional 2TB HDD Exadata Storage Servers for a dedicated Fast Recovery Area

• Additional Exadata Storage Servers must be installed in another rack

• External backup still recommended

FC

Quarter* Half* Full**

Backup Rate

8.5 TB/hr

18.5 TB/hr

27.0 TB/hr

Restore Rate

18.0 TB/hr

28.5 TB/hr

28.5 TB/hr

* Full Exadata Rack to a Quarter, Half Storage Expansion Rack** Estimated rate Full Exadata to Full Storage Expansion Rack

Sun ZFS Storage Appliance

Exa-Backup and ZFS Storage ApplianceMost Flexible

• Various Connectivity Options­ 1 GigE, 10 GigE, IB!!

• ZFS works with RMAN to secure against data corruption­ RMAN ensures that backups are not

corrupt, ZFS ensures they stay that way

• Enables ZFS Snapshot and RMAN incremental backup strategy

• Leveraging ZFS Storage data services and capabilities ­ Thin provisioning­ Compression ­ Snapshot and cloning­ Replication­ Performance Analytics

Oracle Exadata Database Machine

RMAN

IB / 10Gig ENetwork

Image Copies

Incremental Backups*

Backup Rate 6.5 TB/hr 42.0 TB/hr

Restore Rate 6.2 TB/hr 7.0 TB/hr

*Effective Rate = Rate * Change Rate Backup = 8.5 TB/hr * 20% Change = 42 TB/hr

Oracle Exadata Database Machine

• High efficiency Exadata protection

• Scalable – capacity and performance

• Simplified data recovery

Oracle Secure Backup (OSB)

StorageTek Tape Library

Exa-Backup to TapeMost Economical Backup Option

FC / SAS

Network

IB / 10Gb E

Network

6 x LTO4 6 x LTO5

Backup Rate 4.7 TB/hr 5.7 TB/hr

Restore Rate 4.8 TB/hr 5.7 TB/hr

SL3000 up to 24 drive base (up to 56 drives with expansion for LTO or Enterprise T10K and 200 to over 5000 slots) SL8500 up to 64 drive base (up to 640 drives LTO or Enterprise T10K drives and from 1500 to over 100,000 slots)

ZFS Storage Appliance

OSB or other, 3rd Party, Backup

Admin.

StorageTek Tape Storage

RMANBackups

Exadata BackupPutting it all together

Oracle ExadataStorage Cells

Oracle Exadata Database Machine

Backup Area

16

Some performance numbersDisk and Tape

• Exadata for the most demanding RPO/RTO– Backup up to 18TB/hr (full rack), 20-50TB/hr for incrementals– Restore 18-24 TB/hr (full rack)

• ZFS Storage Appliance Beats NetApp and EMC Data Domain!– Over 3x the backup throughput of NetApp– Up to 1.3x the restore throughput of NetApp– Over 3x the backup throughput of Data Domain– Over 3x the restore throughput of Data Domain

• T10000C and Oracle Storagetek Libraries beat IBM !– T1000C 25% greater capacity, 33% lower TCO, and 50% less

floor space

Backup and Restore for ExadataValue Proposition

Speed: Complete backups within shorter windows Faster backup and recovery (flashback and incremental forever RMAN strategy) Speedy Implementation Leverages Exadata's internal IB network for extreme performance Already tested, validated and supported by Oracle

Simplicity: Avoiding complexity• No third party SW backup to manage required for disk backup• Preserves incremental backups optimizing Database and network performance• ZFS Storage Appliance 30% easier to manage than third party vendors

Savings: Reduced Capex and Opex• Simple architecture reduces costs• No backup and recovery license fees and no media server for disk-based backup• Storage hierarchy that balances cost and performance• T1000C 25% greater capacity, 33% lower TCO, and 50% less floor space

Exadata Backup (Fastest)

Immediate Restore

ZFS Storage Appliance Backup (Most Flexible)Easier integration

Tape Backup (Most Economical)

Who better than Oracle to protect OracleThree different ways to protect Exadata

Oracle/StorageTek is #1 in tape

ProsFaster recovery from up-to-date image copyLess data to backup = shortened backup windows

Database

Day 1

Level 0 IMAGE backup

Day 2

Level 1 incremental backupApplied

Day 3

Backups

ConsCan not recover data older than 24 hours

Exa-Backup and ZFS Storage ApplianceMost Flexible

Database

Day 1

Level 0 IMAGE backup

Day 2

Level 1 incremental

backupApplied

Day 3

Backups

Exa-Backup and ZFS Storage ApplianceLeveraging the ZFS Storage Appliance’s SnapShot

SnapShot