Extending VMware Consolidation Benefits to Data Protection with Data Domain Achieving Efficient Data Protection for Virtualized Environments with Data Deduplication

Data Domain: Leadership and Innovation Deduplication Storage Systems > 6,500 systems installed > 2,500 customers > 745 petabytes under Data Domain protection worldwide A History of Industry Firsts 2003 2004 2005 2006 2007 2008 First Dedupe NAS First Dedupe Gateway Largest Dedupe Array First Dedupe Volume Replication First Dedupe Directory Replication First Dedupe VTL First Dedupe Nearline Storage

Data Domain: #1 in Deduplication Storage

Deduplication Defining a New Tier of Storage 1.0 PRIMARY TAPE Storage 2.0 PRIMARY SATA & RAID TAPE Storage 3.0 PRIMARY SATA & RAID & DE-DUPE TAPE

Data Domain: Dedupe Simplified Backup/ media server Archive to tape As required ‘Drag&Drop’ Archiving Offsite Disaster Recovery Storage Onsite Retention Storage WAN Offsite Disaster Recovery Storage Onsite Retention Storage Clients Server Primary storage Archive Application Server Data Domain Retention/ Restore Replication DR Backup Archive High-speed, inline deduplication storage; disk target for nearline applications Any leading backup software, archive apps, or custom nearline use All data types: structured and file Any fabric: NFS / CIFS / NDMP via Ethernet, or VTL via Fibre Channel Disk storage: Internal, or gateway to SAN array One dedupe infrastructure: remote office, datacenter with inline replication

The VMware and Data Domain Joint Solution Data Domain Deduplication Storage Massive data retention Works especially well in VMware environments VMs protected quickly with efficient replication Data invulnerability Seamless integration VMware Backup to Data Domain Deduplication Storage 6 6

Data Domain Basics Replication Easy Integration with Existing Environment Backup and Nearline Applications Data Domain DD500 or DD600 Appliance Series CIFS, NFS, NDMP, OST Ethernet FC = VTL Replication 2U or 3U (15) 500 GB SATA drives RAID-6 NVRAM N+1 Fan 2 - 6 Ports 5.4 to 35 TB with Shelves File System (Gateway to: EMC, HDS, Nexsan, Pillar, NetApp, 3PAR)

Data Deduplication: Under the Hood Store more backups in a smaller footprint. BACKUP DATA LOGICAL ESTIMATED PHYSICAL REDUCTION Friday Full Backup A B C D E F G FRIDAY FULL 1 TB 2- 4x 250 GB Mon Incr A B H Monday Incr 100 GB 7-10x 10 GB Tues Incr C B I Tuesday Incr 100 GB 7-10x 10 GB Weds Incr E G J Wednesday Incr 100 GB 7-10x 10 GB Thurs Incr A C K Thursday Incr 100 GB 7-10x 10 GB Second Friday Full Backup B C D E F L G H 2nd FRIDAY FULL 1 TB 50-60x 18 GB TOTAL 2.4 TB 7.8x 308 GB A B C D E F G H I J K L

Retain: Store More for Longer with Less Over 1 year of retention in 3µ of Data Domain protection storage. BACKUP DATA LOGICAL ESTIMATED PHYSICAL REDUCTION Week 1 April 7 2.4 TB 8x 308 GB Week 2 April 14 3.8 TB 10x 366 GB Week 3 April 21 5.2 TB 12x 424 GB Month 1 April 28 6.6 TB 14x 482 GB Month 2 May 31 12.2 TB 17x 714 GB Month 3 June 30 17.8 TB 19x 946 GB Month 4 July 31 23.4 TB 20x 1178 GB TOTAL 23.4 TB 20x 1178 GB

Challenge: Managing and Protecting Server Environments Storage Infrastructure and Bandwidth Costs Backup data > original data Replication of active system volumes for high availability is complex and expensive Replication of backup data is inefficient 1TB Replicate HA Only Primary Data 10TB Replicate Impractical DR Facility Data Center Expensive Backup Data 10 10

Challenge: Achieving the Data Protection Benefits of Virtualization Virtualization enables simplified data protection and disaster recovery through the encapsulation of systems as files. However, there is often a significant storage requirement in order to capitalize on these data protection benefits (i.e. image-level .vmdk backups) Interestingly: 37% of organizations said the amount of data they need to protect increased after implementing server virtualization* *Source: ESG Research Report, The Impact of Server Virtualization on Storage, December 2007

Solution: Using Deduplication to Protect vmdk Files vmdk File Structure At least 1 per virtual machine Large, 2GB+ File Unique structure includes many empty blocks Data Domain Deduplication Benefits Dramatic reduction in protected vmdk file size – average 40x-60x reduction Disk-speed protection and reliability Data Domain Replicator Software option provides network-efficient disaster recovery over existing networks Virtual Machine Virtual Machine Virtual Machine VMware ESX Server System vmdk vmdk vmdk normal backup process Inline deduplication WAN replication

Variable-Length Segments Are Critical Data Domain variable-length segment deduplication can identify change within each vmdk file Fixed segment lengths cannot deduplicate beyond the first point of data change: Call me Ishmael. Some years ago - never mind how long precisely - having … Redundant Segment Call me Ish. Some years ago - never mind how long precisely - having little … Call me Izzy. Some years ago - never mind how long precisely - having little … Variable-length segments maximize redundancy! Call me Izzy. Some years ago - never mind how long precisely - having little … Anchor Points

Maximize Disaster Recovery Benefits Problems with Tape for VMware DR Time required to write and read large vmdk files to tape Burden and expense of managing tape rotation Delay in locating tapes Risk of lost tapes, failed tapes and lost data Environmental impact of transporting tape media between sites Eliminate Tape Dependency for Disaster Recovery 99% reduction in bandwidth required to replicate vmdk files Rapid rebuild of virtual machines Recover the entire virtual machine – system state, configuration, file system and application data Enable system rebuild quickly and easily into dissimilar server equipment Mix of physical and virtual systems all recoverable from Data Domain deduplication storage file and application data Virtual Machine Virtual Machine Virtual Machine Virtual Machine Virtual Machine Virtual Machine vmdk files WAN 14 Confidential 14

Inline Deduplication for Optimized Time-to-DR Additional 2-3x backup time to get to DR Ready Backup Window Data Domain Inline Dedupe/ Replication DR-Ready Replicate During Backup VTL/Tape/Truck DR-Ready Backup to VTL Copy to Tape Truck to DR Site Post-Process Dedupe Backup to Cache Dedupe & Replicate DR Ready Post-process DR restore point is usually obsolete

Network-Efficient Replication for True DR True DR; lowers WAN costs; improves SLAs. 95- 99% Cross-site Bandwidth Reduction 1- 5% DIR A DD120 home Archive Data 1- 5% WAN Backup Data DD120 1- 5% DDX with DD690s home DD580 Destination: Data Center Hub Supports hundreds of remote sites Source: Remote Sites

‘Green’ IT Initiatives Demand Efficient Storage By 2012, de-duplication will be applied to 75% of backups.* -- Gartner IT managers looking to boost storage efficiency next year will embrace online storage services, push de-duplication in the data center and adopt solid-state disk drives to help fuel hardware consolidation strategies and green initiatives.** -- IDC One-third of organizations with over 25TB of data cite that physical footprint and energy efficiency has become a more a important purchasing consideration of secondary storage systems*** -- ESG *Source: Gartner, Predicts 2008: Emerging Technologies Make Storage Hardware and Software More Effective, December 21, 2007 **Source: IDC, Top 10 Storage Predictions for 2008, December 24, 2007 ***Source: ESG Research Report, Data Protection Market Trends, January 2008 17

Enable Simple and Efficient Data Protection for VMware Environments Requirement Greener IT Efficiencies Reduce floor space and energy consumption of servers by improving utilization Reduce floor space and energy consumption of storage with massive data reduction; average 40x-60x reduction of vmdk Files Comprehensive Data Protection and DR vmdk for easy server rebuild VCB for best protection on VMware Consolidate DR server equipment Disk-based performance and reliability Data Invulnerability Architecture Consolidated data protection for mixed physical and virtual systems 99% less bandwidth required for efficient network-based DR Dramatically improved recovery point and recovery time service levels Operational Simplicity Automated system recovery Application and system high availability through maintenance Eliminate tape dependence Reduce the cost of long-term data preservation to less than $0.35/GB – less than the cost of tape Simplify DR walk-through procedures Reduced Costs Proven 80-90% reduced operational Costs on Servers Proven 20x average reduced operational costs on storage and bandwidth

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