Virtual Storage Tier and Beyond

Transcription

1 Virtual Storage Tier and Beyond Manish Agarwal Sr. Product Manager, NetApp Santa Clara, CA 1

2 Agenda Trends Other Storage Trends and Flash 5 Min Rule Issues for Flash Dedupe and Flash Caching Architectural Choices NetApp s Criteria for Effective Tiering Performance and Caching Tiers Comparison of Cache Location Choices Implication of Trends / Choices NetApp Virtual Storage Tier Portfolio of Products Performance Results Flash in a Shared Virtual Infrastructure Santa Clara, CA Manish Agarwal, NetApp 2

3 Trends Santa Clara, CA 3

4 Storage Trends and Flash Cloud Performance bursts QOS and Cache partitioning Flash Consolidate performance Need for shared cache Enabling new applications Big Data Virtualization Santa Clara, CA Manish Agarwal, NetApp 4

5 $/IOPS Flash Vs HDD Gray s 5 min rule becomes 30 hrs 16K random access re-reference interval < 30h Use Flash instead of HDD For 2 MiB sequential, breakeven is 1/4 hour $/IOPS vs. $/GB for IO Devices SATA SAS MLC Flash SSD DRAM Santa Clara, CA Manish Agarwal, NetApp 5 $/GB

6 Issues for Flash to Overcome Wear Life Cache is the worst case for wear life NetApp s Write-Anywhere layout minimizes write amplification SLC emlc MLC TLC P/E Cycles (K) 100K 30K 5-10K 1-3K Cost ($/GB compared to SATA) RAM SAS SLC emlc MLC Cost compared to SATA 200x 6x 80x 40x 20x Management Overhead Data Migration Or Caching Santa Clara, CA Manish Agarwal, NetApp 6

7 Meant for Each Other Santa Clara, CA Manish Agarwal, NetApp 7

8 Caching Architecture Choices Santa Clara, CA 8

9 Storage Tiering Opportunity For Optimization Primary Storage Pool: All data hot and cold Objective: Intelligently place hot data on the highest performing media Hot Data Data should be fast when hot, and low cost when it s cold Santa Clara, CA Manish Agarwal, NetApp 9

10 NetApp s Criteria for Effective Tiering Simple Work out of the box with default settings Low management overhead Efficient Use high cost media (Flash) efficiently Enable high capacity drives as primary tier Real-Time Serve data when it s hot Santa Clara, CA Manish Agarwal, NetApp 10

11 Caching Architectures Performance and Capacity Tiers Storage Server Network Flash On Server Lowest Latency Network Flash Shared Cache Over time this will get integrated into host or storage Flash on Storage Controller Shared, resilient Cache Santa Clara, CA Manish Agarwal, NetApp 11

12 Summary: Implications of Trends Santa Clara, CA Manish Agarwal, NetApp 12

13 Virtual Storage Tier Santa Clara, CA 13

14 NetApp Flash as Cache Portfolio Includes only caching options Santa Clara, CA Manish Agarwal, NetApp 14

15 Virtual Storage Tier Santa Clara, CA Manish Agarwal, NetApp 15

16 VST: Flash Cache (File Services) Santa Clara, CA Manish Agarwal, NetApp 16

17 VST: Flash Pool (OLTP) Santa Clara, CA Manish Agarwal, NetApp 17

18 Where to use VST Santa Clara, CA Manish Agarwal, NetApp 18

19 Shared Virtual Infrastructure Logical View Santa Clara, CA Manish Agarwal, NetApp 19

20 Shared Virtual Infrastructure Physical View Santa Clara, CA Manish Agarwal, NetApp 20

21 Performance, Sc Santa Clara, CA Manish Agarwal, NetApp 21

22 Santa Clara, CA Manish Agarwal, NetApp 22

23 Santa Clara, CA Manish Agarwal, NetApp 23

24 NetApp Flash as Cache Offering Today (Jul 2012) Santa Clara, CA Manish Agarwal, NetApp 24

25 NetApp Flash Cache Santa Clara, CA Manish Agarwal, NetApp 25

26 NetApp Flash Pool Santa Clara, CA Manish Agarwal, NetApp 26