Backup and Recovery Solutions for Exadata Ľubomír Vaňo Principal Sales Consultant
Fundamental Backup and Recovery Data doesn t exist in most organizations until the rule of 3 is complete: Different Media in Disk to Disk backup means different filesystem / Volume Manager
Choosing Backup Option Influences Value of the Data What is the cost to the company of not getting the data back? This is the true question to be asked Can some data be restored later and some more quickly? Will different backup and restore options suit different data categories Backup Window How much time is available to backup the data? With the growth rate of the data how long will the window last Recovery Time Objective (RTO) How quickly does the data need to be restored? Recovery Point Objective (RPO) To which point in time must the data be restored?
Oracle Data Protection Solutions Disaster Recovery Physical Data Protection Active Data Guard Backup & Recovery Recovery Time Objective (RTO) Seconds/Minutes Recovery Time Objective (RTO) Physical Data Protection Recovery Manager (RMAN) Oracle Secure Backup (OSB) Logical Data Protection Flashback Technologies Minutes/Hours/Days Minutes/Hours
Continuous Data Protection Wks Days Hrs Mins Secs Secs Mins Hrs Days Data Loss Downtime (Recovery Point Objective) (Recovery Time Objective) Wks
Flashback Database Fast point-in-time recovery strategy Database Database Instance Instance Eliminate the need to restore a whole database backup Continuous data protection for database Write New Block Version Old Block Version Optimized, before-change block logging Restores just changed blocks Replay log to restore DB to desired time It s fast - recover in minutes, not hours It s easy - single command restore Flashback Database to 2:05 PM ` Data Files Flashback Log Rewind Rewind button button for for the the Database Database
Fundamental Backup and Recovery Wks Days Hrs Mins Secs Secs Mins Hrs Days Data Loss Downtime (Recovery Point Objective) (Recovery Time Objective) Wks
Oracle Recovery Manager (RMAN) Oracle-integrated Backup & Recovery Engine Intimate knowledge of database file formats and recovery procedures Oracle Enterprise Manager Oracle Secure Backup* Manages and automates the backup, restore, and recovery policies and process Catalog all backup and recovery activities RMAN Operates online and in parallel for fast processing Tape Drives Fast Recovery Area Database Cloud *RMAN also supports leading 3rd party media managers 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
Backup Options for Exadata Customer choice depending upon objectives & budget Exadata Backup (Fastest) o RTO: Immediate o RPO: Lossless o Fastest option using Inifiniband to another Exadata machine ZFS Storage Appliance Backup (Most Flexible) o RTO: Next to Immediate o RPO: Last transaction o Multiple network connectivity & data service options Tape Backup (Most Economical) o RTO: Hours o RPO: Last Transaction Backup o Best economics on cost/gb and offers removable offsite capability
Exadata Backup (Fastest) o RTO: Immediate o RPO: Lossless o Fastest option using Inifiniband to another Exadata machine HIGHEST PERFORMANCE: BACKUP TO EXADATA
Exadata - Backup and Recovery Using additional Storage Cells Oracle Exadata Database Machine Oracle Exadata Storage Cells MAA MA Best A Practice Allocate additional 2TB Exadata Storage Servers for a dedicated Fast Recovery Area Additional Exadata Storage Servers must be installed in another rack InfiniBand Network Key Benefits Fast Recovery Area Better failure isolation when using separate backup hardware Allows use of lower cost space for backups Only for data protection unbalanced configuration
Exadata - Backup and Recovery Performance Backup rates: 17 TB/hr for Full Rack configurations (full image copies) Effectively 20-50 TB/Hr for incremental backups Restore rates into existing files 14 17 TB/hr for Full Rack Configuration Database redo apply rates 2.1 TB/hour (637 MB/sec) 1.7 TB/hour (495 MB/sec) with flashback enabled MAA MA Best A Practice
MOST FLEXIBLE: BACKUP TO ZFS STORAGE APPLIANCE ZFS Storage Appliance Backup (Most Flexible) o RTO: Next to Immediate o RPO: Last transaction o Multiple network connectivity & data service options
Exadata and the Sun ZFS Appliance RMAN Disk Target Various Connectivity Options Sun ZFS Storage Appliance Gbe 10Gbe Infiniband Fast Recovery Area 1Gbe, 10GBe, Infiniband ZFS works with RMAN to secure against data corruption RMAN ensures that backups are not corrupt, ZFS ensures they stay that way Enables dnfs DB Cloning Leveraging ZFS Storage data services and capabilities Thin provisioning Compression Snapshot and Cloning Replication Performance Analytics
ZFS Storage Appliances Second Generation Systems BEST VALUE FULL SUITE OF DATA SERVICES STANDARD FEATURES (ALL MODELS) All Data Protocols: FC, iscsi, IB, NFS, CIFS, WebDAV, etc. Advanced Data Services: Snap, dedup., compression, replication, etc. CLIENTS AND APPLICATIONS (ALL MODELS) Oracle Solaris Oracle Linux Oracle Database, Middleware, and Applications Oracle VM VMware Windows BEST FLEXIBILITY SINGLE OR DUAL CONTROLLERS BEST SCALABILITY ACTIVE-ACTIVE CONTROLLERS More than 50 business applications supported NEW BENEFITS Best Density and Scale: Industry-leading density, scale up to 1PB for Consolidation Flash Everywhere and More Of It: Industry-leading flash capacity for Application Performance Doubled the Processing Power: Performance to drive enterprise Data Protection
Oracle Suggested Backup Strategy Database Backups Level 0 IMAGE backup Level 1 incremental backup Ap pli ed Pros Faster recovery from up-todate image copy Less data to backup = shortened backup windows Day 1 Day 2 Day 3 Cons Can not recover data older than 24 hours Image copy can not be compressed by RMAN
Oracle Suggested Backup Strategy Leveraging the ZFS Storage Appliance s SnapShot Database Backups Level 0 IMAGE backup SnapShot Ap pl ie Level 1 incremental backup Day 1 Day 2 d Day 3
Benefits of the ZFS Storage Appliance Recovery of image backups older than 24 hours Database cloning Provides compression for RMAN image backups Remember!!! Image copy backups are EXACT byte-for-byte copies of database files Replication of RMAN disk backup to remote destination Data movement to Tape RMAN Archive to tape managed and tracked by RMAN NDMP direct to FC tape no database server resources Third Party backup server reading snapshot and write to tape
RMAN backup and restore throughput FOR A SUN ZFS STORAGE APPLIANCE WITH 1 HEAD, 4 TRAYS, 2 POOLS, AND 16 SHARES # active channels Backup throughput (TB/HR) Restore throughput (TB/HR) 4 4.8 1.4 8 5.1 1.9 16 5.5 1.4 32 4.5 1.0
RMAN backup and restore throughput FOR A SUN ZFS STORAGE APPLIANCE WITH 2 HEADS, 4 TRAYS, 2 POOLS, AND 16 SHARES # active channels Backup throughput (TB/HR) Restore throughput (TB/HR) 4 5.5 2.7 8 6.9 3.3 16 8.9 2.2 32 6.9 1.8
LOWEST COST: TAPE BACKUP Tape Backup (Most Economical) o RTO: Hours o RPO: Last Transaction Backup o Best economics on cost/gb and offers removable offsite capability
Oracle Secure Backup (OSB) Enterprise Tape Backup Management Protects Entire IT Environment Oracle Enterprise Manager Built-in Oracle Integration Oracle Secure Backup File System Data Oracle Database RMAN Integration 25 40% faster than leading competition 4X less expensive than comparable products Supports Oracle Database 11g through Oracle 9i
Oracle Exadata Database Machine Backup To Disk and Tape Oracle Exadata Database Machine Fast Recovery Area MAA MAA MA A Practice Practice Best Best High High performance performance Exadata Exadata protection protection (disk (disk and and tape) tape) Backups: Backups: 77 to to 88 TB/hr TB/hr Restore: Restore: 77 to to 24 24 TB/hr TB/hr Scalable Scalable capacity capacity and and performance performance Simplified Simplified data data recovery recovery Oracle Secure Backup StorageTek Tape Storage
Oracle Database ZFS Storage Appliance RMAN Backup protection Oracle Database ZFS Storage Appliance OSB or 3rd Party Backup Admin. StorageTek Tape Storage RMAN Backups Fast Recovery Area Oracle Secure Backup Admin. Also works with your customer s third party backup applications Symantec NetBackup and Backup Exec EMC NetWorker IBM Tivoli Storage Manager CommVault Simpana Etc
Geographic RMAN data protection ZFS Storage Appliances Fast Recovery Area StorageTek Tape Storage ZFS Storage Appliance Replication Compression Snapshots (read only) Cloning (read/write) Thin Provisioning RMAN Backups Automated Tape Long term data retention Secure encrypted tape Green, economical storage Portability Lowest cost / Maximum capacity Secondary Location RMAN Backups
Fastest Time to Restore RMAN Backup Targets for Exadata Database Machine Exadata Expansion RMAN backups ZFS Storage Appliance Tape Library
Putting It All Together.. Customer Example Requirement Service Level Agreement Oracle Solution RPO Any point in time within recovery window Archived Log Mode RTO Tier 3 <1 hour for tablespace/datafile recovery <3 hours for full database recovery RMAN, OSB, NBU, etc.. <30 min for row/table recovery (within last 3 hrs) <1 hour for database recovery from logical errors (within last 2 hrs) Flashback Table <15 min for any database outage Data Guard Tier 2 Tier 1 Disaster Recovery Failover to standby database at secondary site Backups sent offsite Flashback Database Data Guard OSB, RMAN Retention Policy Onsite backups - 3 day recovery window Offsite backups - 1 year tape retention Fast Recovery Area, OSB, NBU, etc.. Backup Redundancy Two backup copies on tape OSB, NBU, etc..
To Find out More Protecting Exadata with the Sun ZFS Storage appliance Capacity Planning Guidelines and Configuration Best Practices Whitepaper www.oracle.com/technetwork/server-storage/sun-unified-storage/overview/index.html MAA Guides www.oracle.com/technetwork/database/features/availability/exadata-maa-best-practices-155385.html Oracle Recovery Manager www.oracle.com/technology/deploy/availability/htdocs/rman_overview.htm Sun ZFS Storage Appliance www.oracle.com/us/products/servers-storage/storage/unified-storage Oracle StorageTek Tape www.oracle.com/us/products/servers-storage/storage/tape-storage/index.html