Demystifying Deduplication

Global SMB Event Marketing 2 APPROACH: What is deduplication? Eliminate redundant data Start with the backup environment as the first phase Maintain references to single instances of data across data store Deduplication eliminates redundant copies of data by leveraging pointers to point duplicate files or blocks to a single object Deduplication can decrease disk capacity requirements by up to 98% and decrease bandwidth requirements for data transfer by up to 50 times.

Global SMB Event Marketing Data Deduplication is a capacity optimization feature – not a capacity optimization solution  Need to understand what problem you are trying to fix  Dell can help find the right solution to your storage challenges As deduplication matures it will be ubiquitous across a wide range of storage products Deduplication integrated into software functionality provides the greatest benefits  Need to understand what problem you are trying to fix  Dell can help find the right solution to your storage challenges Deduplication technology will expand beyond backup to include static archive data and inactive primary data Dell’s point of view on deduplication

FileBlockSub-block Inline Processing Post Processing Deduplication – Confusion abounds Source Target Single Instance Storage VTL Different technologies Different Architectures

Required 5 Types of deduplication File aka Single Instance Store or SIS Typically primary storage Block aka Sub-file or Fixed block Typically secondary storage Better dedupe ratios Sub-block aka Variable block or Byte-level Typically secondary storage Best dedupe ratios Most processor intensive Data deduplication eliminates common data at a file, block, or sub-block level. Disk Capacity ABCDABCE ABCDE Data object #1 Data object #2 F F Unique data saved to disk

Global SMB Event Marketing Deduplication Enables Cost Effective Disk To Disk Backup 6 Shorten backup window and restore faster with B2D – At a cost similar to tape Reduce storage capacity, power, cooling and space requirements Centralize data protection and archive, reducing the burden on offices not staffed to manage it Enable cost-effective DR Primary Disk Deduplication Replication Backup Archive Secondary Disk Backup to Disk with Dedupe

Global SMB Event Marketing Why optimize disk-based backup with deduplication? B2D without deduplication B2D with deduplication 10:1 ratio Total capacity needed after 3 years (TB’s) # drives needed 365 Total storage cost ~$34k~$8k 1. Example – 20TB of data growing 20% per year 2. How long until the deduplicated storage capacity required equals 3 years without dedupe?  Just over 15 years

Global SMB Event Marketing How deduplication fits into the backup environment 8 Appliance-based (Target) Advantages: Ease of implementation Works with variety of backup SW Disadvantages: Can be more expensive solution Replication target restrictions Greater network traffic overhead Often on proprietary hardware Server-based (Source) & Integrated (Hybrid) Advantages: Common management Ease of use Can be less expensive solution (lower TCO) Reduces network traffic Global deduplication opportunity Application Servers Backup Server Deduplication Appliance JBOD/NAS/SAN OR Deduplication Herehere or Deduplication