TechTarget Backup School exagrid.com | 1 Backup School ExaGrid / Commvault Stress-free backup storage

TechTarget Backup School exagrid.com | 2 Disk-Based Backup with Data Deduplication Approaches Appliances with inline deduplication with a scale-up architecture Appliances with a landing zone, adaptive deduplication and scale- out architecture Deduplication integrated with the backup application media server and bundled with a hardware server and storage 2

TechTarget Backup School exagrid.com | 3 Deduplication Integrated in Media Server Takes processor and memory away from media server All data is deduplicated before writing to disk Data needs to be rehydrated for each request Deduplication ratios are in the 7:1 range so as to not tax the media server Uses more disk with longer retention periods Uses about 3X the WAN bandwidth to replicate offsite Can only deduplicate data running through the media server Cannot deduplicate other backup apps/utilities Veeam, vRanger, etc. Cannot deduplicate direct database dumps SQL dumps, Oracle RMAN dumps

TechTarget Backup School exagrid.com | 4 Deduplication Deployment Scenarios Client-side Dedupe Small remote offices WAN-efficient transfer of data to the corporate data center Media Server Dedupe Average 7:1 dedupe ratio Use more disk with longer retention Use more WAN bandwidth Inline Slower backups Slow restores (rehydration) CommVault Dedicated Dedupe Appliance Average 20:1 dedupe ratio Uses less disk with longer retention Uses less WAN bandwidth Faster backups – dedicated appliance Faster restores – dedicated appliance Offload the media server Heterogeneous environments

TechTarget Backup School exagrid.com | 5 Backup Software Server-based Deduplication Compute-intensive inline process in an already taxed media server slows backups down. Data is 100% deduplicated on disk which slows down restores, recoveries, and tape copies due to a lengthy rehydration process for every request. Average deduplication ratio for software is 7:1 versus 20:1 in a dedicated appliance requiring far more disk and WAN bandwidth. Examples: Commvault, NetBackup

TechTarget Backup School exagrid.com | 6 Straight Disk vs. ExaGrid ExaGrid achieves a deduplication ratio of 20:1 Commvault achieves a deduplication ration of 7:1 The longer the retention, the more disk Commvault will use Crossover point There is a retention period crossover point where ExaGrid will cost far less than straight disk. ExaGrid has a straight disk calculator that will demonstrate the crossover point. In addition, ExaGrid will use 33% of the WAN bandwidth to replicate to the disaster recovery site. 6

TechTarget Backup School exagrid.com | 7 ExaGrid Benefits Dedicated appliance Shorter backup window Full appliances in a scale-out GRID Fixed length backup window as data grows Landing zone maintains most recent backups in full form Fast restores Instant VM boots Fast offsite tape copies if tape is still used for offsite DR 20:1 deduplication ratio Lower cost over straight disk Lower WAN bandwidth usage Target-side appliance can take in multiple backup apps and utilities Not locked in and can add or change backup apps and utilities in the future 7

TechTarget Backup School exagrid.com | 8 ExaGrid / Stress-free backup storage Thank You! exagrid.com