Data Center Energy Solutions

Transcription

1 1 Intelligent Green Data Center Strategies PA Forum Enabled by Data DeDuplication Stefano Pirovano EMC BRS Practice Manager Italy

2 2 Agenda IT s Growing Carbon Footprint Green Only for Green s Sake? Balancing Business and Green Storage Choices Green for Backup = Green for Archiving Data Domain & Avamar Enables Intelligent Green IT Strategies

3 3 IT s Growing Carbon Footprint Green Data Center Efforts Face Three Constraints Power and Cooling For every $1 in new h/w, $0.50 in power/cooling 1 Cost/kW: Commercial rate up 30% Increasing technology density 3 means greater cooling demands 37% of power budget burned by storage (Storage Magazine, 3/07) Space Data growing by 60% per year Finite total footprint per data center Reducing Power, Cooling, and Space Critical to Go Green But methods must make business sense 1 "Solutions for the Datacenter's Thermal Challenges." IDC White Paper. Document #205113, January 2007, p Amount of server, storage, and connectivity in a given footprint

4 4 Green Only For Green s Sake? A Path to Failure Closing data centers is green, but not sustainable Scrapping and rebuilding existing data centers prohibitively expensive Intelligent Green Balances Business and Green Objectives Meet business performance objectives on budget, securely, and as green as possible If you want to save power, shut everything off and put it on tape. But if you have data that s time-sensitive and performance-sensitive, that s a different story. Greg Schulz, Founder, StorageIO Group 1 1 Is storage top energy hog in data centers? Dec 6, 2007, SearchStorage.com

5 5 Balancing Business and Green Business Requirements Cost Security Performance Green Initiatives Power Cooling Space Servers Networking Storage backup archiving disaster recovery

6 6 Storage Choices Three Main Storage Technologies Tape Disk-to-disk Deduplication Let s Look in Detail at Backup Results mirror those for archiving, DR, and virtualization Are there backup methods that meet business requirements and manage your carbon footprint?

7 7 Alternative 1: Backup to Tape Exhaust Time from Backup to Storage Problems Slow (backup, transport, retrieve, restore) Tape libraries have large space footprint Offsite transport by truck, storage facility power and cooling Security: Risk of loss or theft Labor intensive Failed restores

8 8 Tape Favors Green, But with Risk Business Requirements Pros Cost (media) Cons Security Performance Cost (operational) Green Initiatives Pros Power Cooling Cons Space (Transport)

9 Alternative 2: Backup to Disk = more space = more power = more cooling 21U 15 x 500GB (7+7+1HS) 6TB, 3U 2.1kW 300W 10,150 BTU/hr 15 x 500GB 1450 BTU/hr (7+7+1HS) 6TB DATA 15 x 500GB (7+7+1HS) 6TB, 3U 300W 15 x 500GB 1450 BTU/hr (7+7+1HS) 6TB 15 x 500GB (7+7+1HS) 6TB, 3U 300W 15 x 500GB 1450 BTU/hr (7+7+1HS) 6TB 15 x 500GB (7+7+1HS) 6TB, 3U 300W 15 x 500GB 1450 BTU/hr (7+7+1HS) 6TB 15 x 500GB (7+7+1HS) 6TB, 3U 300W 15 x 500GB 1450 BTU/hr (7+7+1HS) 6TB more data VTL array Copyright 2009 EMC Corporation. All rights reserved. 15 x 500GB (7+7+1HS) 6TB, 3U 15 x 500GB (7+7+1HS) 6TB, 3U 300W 300W 15 x 500GB 1450 BTU/hr (7+7+1HS) 6TB 15 x 500GB 1450 BTU/hr (7+7+1HS) 6TB 9

10 10 Disk Improves Performance, But with Cost Business Requirements Pros Security Performance Cons Cost (prohibitive) Green Initiatives Pros Cons Power Cooling Space

11 Alternative 3: Backup to Dedupe Disk Post Process: Dedupe After Storing Inline: Dedupe Before Storing Store Dedupe Dedupe 3x disk accesses to shared store Process contention is worse if there are more of them Copy to tape: Too slow to stream tape Recovery: SLA predictability Replication: Poor time-to-dr Dedupe itself if interleaved with backup or restore Other activities unimpeded Predictable Simpler More admin to fight these issues Copyright 2009 EMC Corporation. All rights reserved. 11

12 12 Post Process Deduplication: Too Much Disk Business Requirements Pros Security Performance Cons Cost Performance Replication Green Initiatives Pros Cons Power Cooling Space

13 13 Inline Deduplication Balances Business & Green Objectives Business Requirements Pros Security Performance Cost Cons Green Initiatives Pros Power* Cooling Space Cons *Consumes more power and cooling than static tape but tape climate control, transport, and drives consumer power

14 14 Green for Backup = Green for Archiving Archived data held for longer duration Leads to additional challenges Tape: Same drawbacks as backup and more Finding/restoring a specific archived file requires restoring the whole archive Media format obsolescence Disk array: Expensive and power/cooling/space hogs Deduplication: Intelligent green for archiving Higher performance, smaller footprint than tape Lower cost, power, cooling, and space than Tier 1 array Enhances benefits of tiered storage

15 15 Data Domain & Avamar Enables Intelligent Green IT Strategies Intelligent: Business Requirements Cost Lower TCO, higher ROI Performance Less Management: Simple, Mature, and Flexible Scalable: Supports multiple tiers of storage, all data types Throughput: Dedupes faster than others write raw data Security Data Integrity: Highest, storage of last resort Replication: Pass DR audits Green: Space, Power, Cooling Less Disk Inline dedupes before hitting disk Uses CPU instead of spindles for performance Less Tape Reduce/eliminate tape, drives, transport, vaulting Data deduplication is a green technology because highly optimized storage systems house less data and grow more slowly, thus pulling less power and generating less heat The result is massive capacity savings and attendant energy savings. Taneja Group 1 1 The Greening of the Data Center, The Taneja Group, August 2007, page 8

16 16 Thank You!

17 17 Intelligent Green Data Centers Power, cooling, and space budgets stretched Intelligent green strategies meet green and business requirements simultaneously Tape or disk-to-disk fail one or the other Deduplication does a better job, but not all deduplication is equal Inline deduplication from Data Domain & Avamar meets aggressive SLAs while restraining growth in power, cooling, and space