A way to visual the best storage media for an application
- 1. Storage media solution "including pricing as a factor" Tony Roug Rougs.com LLC Storage Technology Consulting August 15, 2013
- 2. Where does pricing fit? • Storage decision are driven by – Capacity – Performance – Price • In a world of many technologies and usage models – what's a simple visualization of the above – propose best price tradeoff for single server configs Rougs.com LLC Copyright HDDSSDPCIe SSDDDR or or or or What's the low cost for a Performance/Capacity requirement assumes a "commodity" model for storage hardware
- 3. Configuration • Server configuration – Basic SuperMicro 1U and 2U rack 23.5" server – processor/board: Xeon E5 C600 Chipset – Single and Dual – drive slots: 1U - 10, 2U – 24, assume possible for either 2.5 or 3.5 (i.e. HDDs.) – PCIe slots: 1U – 2, 2U – 4, only consider half height, half width – DDR: up to 1TB per server – All configurations forced to single server – Servers Direct Pricing • SATA/SAS HDDs – Seagate 15K/10K and 7.2K SATA – Servers Direct pricing – IOPS based on rotational speed • SATA SSDs: – SATA SSDs (Intel) – Amazon and NewEgg pricing – Spec sheet 4K random performance • PCIe SSD: – Intel 910, Amazon Pricing – No Fusion because no public price or performance info • DDR DRAM: – Kinston – Servers Direct Pricing – Spec Sheet performance • Notes/Assumptions – IOPS Performance scales linearly as drives are added – No extra drives for reliability or availability Rougs.com LLC Copyright
- 4. Base data for price calculation Rougs.com LLC Copyright July 16, 2013 July 8, 2010 In this case all data based on spec sheets and web pricing
- 5. Random 4K 90% Read, 10% Write Workloads: TPC-E Rougs.com LLC Copyright 100 1,000 10,000 100,000 1,000,000 128 256 512 1024 2048 4096 8192 PeakIOPS Total App Gig Required SATA HDD SAS HDD X25M X25M DC X25E DDR July 16, 2013July 8, 2010 PCIE SSD Opportunity PCIe opportunity in 2010 – reduced # drives and performance 100 1,000 10,000 100,000 1,000,000 128 512 2048 8192 PeakIOPS Total App Gig Required SATA HDD SAS HDD Intel 3500 Intel 3700 Intel 910 DDR TPC-E target for DB size
- 6. Random 4K 70% Read, 30% Write Workloads: TPC-C Rougs.com LLC Copyright 100 1,000 10,000 100,000 1,000,000 128 256 512 1024 2048 4096 8192 PeakIOPS Total App Gig Required SATA HDD SAS HDD X25M X25M DC X25E DDR TPC-C target for DB size July 16, 2013July 8, 2010 PCIE SSD Opportunity PCIe card opportunity in 2010 – reduced # drives and performance 100 1,000 10,000 100,000 1,000,000 128 256 512 1024 2048 4096 8192 PeakIOPS Total App Gig Required SATA HDD SAS HDD Intel 3500 Intel 3700 Intel 910 DDR
- 7. Random 4K 100% Read workloads: boot/VDI, digital content, Hadoop Rougs.com LLC Copyright 100 1,000 10,000 100,000 1,000,000 128 512 2048 8192 PeakIOPS Total App Gig Required SATA HDD SAS HDD X25M X25M DC X25E DDR July 16, 2013July 8, 2010 Typical 100% read workload No opportunity for PCIe SSDs in 2010 or today 100 1,000 10,000 100,000 1,000,000 128 512 2048 8192 PeakIOPS Total App Gig Required SATA HDD SAS HDD Intel 3500 Intel 3700 Intel 910 DDR
- 8. Random 4K 100% Write Workloads: FSI trading, DB Logging Rougs.com LLC Copyright July 16, 2013July 8, 2010 100 1,000 10,000 100,000 1,000,000 128 512 2048 8192 PeakIOPS Total App Gig Required SATA HDD SAS HDD X25M X25M DC X25E DDR PCIE SSD Opportunity PCIe SSD filled opportunity hole in 2010, performance and reduced number of drives 100 1,000 10,000 100,000 1,000,000 128 256 512 1024 2048 4096 8192 PeakIOPS Total App Gig Required SATA HDD SAS HDD Intel 3500 Intel 3700 Intel 910 DDR
- 9. Random 4K 60% Read, 40% Write Workloads: CDN Web Caching Rougs.com LLC Copyright 100 1,000 10,000 100,000 1,000,000 128 512 2048 8192 PeakIOPS Total App Gig Required SATA HDD SAS HDD X25M X25M DC X25E DDR July 16, 2013July 8, 2010 Typical workload area Opportunity for CDN covered by SSDs in 2010 100 1,000 10,000 100,000 1,000,000 128 512 2048 8192 PeakIOPS Total App Gig Required SATA HDD SAS HDD Intel 3500 Intel 3700 Intel 910 DDR
- 10. Choosing lowest power versus price HDDSSDPCIe SSDDDR or or or What's the low power for a Performance/Capacity requirement
- 11. Random 4K 70% Read, 30% Write Comparing selecting on price versus power Power - July 16, 2013 100 1,000 10,000 100,000 1,000,000 128 256 512 1024 2048 4096 8192 PeakIOPS Total App Gig Required SATA HDD SAS HDD Intel 3500 Intel 3700 Intel 910 DDR 100 1,000 10,000 100,000 1,000,000 128 256 512 1024 2048 4096 8192 PeakIOPS Total App Gig Required SATA HDD SAS HDD Intel 3500 Intel 3700 Intel 910 DDR Power - July 16, 2013 When focused on just power, SSDs almost always beat HDDs and DDR
- 12. Summary • For a simple study on spec price/performance • Commercial SATA SSDs have significantly improved in 3 years • Can cover most of the common usage cases • For typical usage models, performance of SATA SSD seems largely good enough • For typical usage models, SATA SSD seem to be the lowest power for almost all usage models