DiskSim Project Introduction
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DiskSim is a disk system simulator originally developed at Carnegie Mellon University to support storage research. It models disk performance accurately and can be used in a variety of design environments. The document discusses extensions to DiskSim that model solid state drives (SSDs), hard disk drives (HDDs), and phase change memory (PCM). It notes that an SSD extension provides limited simulation of an idealized SSD, while Dempsey extends DiskSim to model HDD power consumption and performance characteristics. It states that current project progress involves developing power consumption models for the SSD extension, integrating and improving Dempsey for HDDs, and developing an independent PCM extension including power measurement.
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Solid Access Technologies is a privately held company based in Massachusetts that develops solid state disk (SSD) technology using standard interfaces like Fibre Channel and SAS. Their SSD products have outperformed other storage technologies in customer benchmarks. With headquarters in Boston and offices in Prague, Solid Access focuses on global opportunities through direct sales and partners. Their SSD products eliminate hard disk drive bottlenecks and accelerate applications by providing over 300,000 random IOPS and 3.6GB/s bandwidth while integrating with existing storage infrastructures.
Diablo Memory Channel Flash Podcast
In this presentation, Kevin Wagner from Diablo Technologies describes the company's new Memory Channel Flash Solution.
Diablo leveraged its extensive experience in advanced memory channel interfaces and protocols to deliver a superior system architecture that directly attaches persistent memory to the host processors of a server or storage array. This innovative approach utilizes the industry standard DIMM form factor and native CPU memory interface, allowing MCS to be a drop-in replacement for standard RDIMMs. The architecture delivers the highest, most economical scaling of any enterprise storage solution on the market today, with persistent latencies approaching that of DRAM and linear scaling of throughput with additional modules.
“Flash SSDs boost system performance, and flash over PCIe is even faster, but the best performance will come from flash on the memory channel," said Jim Handy, Director at Objective Analysis. "Diablo is on the right path by providing a way to plug flash right into the DDR memory buses on today's servers.”
View the presentation video: http://inside-bigdata.com/slidecast-diablo-memory-channel-flash-technology-is-big-data-for-less/
Preventing Possible PVS Performance Pain Points
Citrix Provisioning Services has been invigorated with new storage optimisations. Every storage vendor that got into business providing a solution to I/O problems may have to think twice about the value they add given new services within PVS. But, does that mean that creating a viable PVS service has become a breeze? In Preventing Possible PVS Performance Pain Points we set out to look at the performance of PVS server including networking, host configuration, the importance of being earnest about memory, the good, bad and ugly of RAM+HDD write cache and Windows Storage or hyper-converged environments, migration and availability.
Ceph Day Shanghai - SSD/NVM Technology Boosting Ceph Performance
This document discusses using SSDs and emerging non-volatile memory technologies like 3D XPoint to boost performance of Ceph storage clusters. It outlines how SSDs can be used as journals and caches to significantly increase throughput and reduce latency compared to HDD-only clusters. A case study from Yahoo showed that using Intel NVMe SSDs with caching software delivered over 2x throughput and half the latency with only 5% of data cached. Future technologies like 3D NAND and 3D XPoint will allow building higher performance, higher capacity SSDs that could extend the use of Ceph.
Designing SSD-friendly Applications for Better Application Performance and Hi...
This document discusses how applications can be designed to take advantage of the unique characteristics of solid state drives (SSDs) in order to improve application performance, storage input/output (IO) efficiency, and SSD lifespan. It proposes nine SSD-friendly application design changes and explains how they can result in better application performance by fully utilizing SSDs' internal parallelism, more efficient storage IO by reducing write amplification, and longer SSD lifespan by decreasing write amplification.
SSD Seminar Report
This document is a seminar report on solid state drives (SSDs). It begins with an abstract that outlines how SSDs provide faster data transfer rates than traditional hard disk drives (HDDs) by using flash memory instead of spinning disks. The report then covers SSD history, components, how data is saved, types/form factors, maintenance, advantages over HDDs like speed and reliability, and applications. It aims to provide an overview of SSD technology for readers.
Apresentacao Solid Access Corp Presentation Openware 5 20 10
Solid Access Technologies is a privately held company based in Massachusetts that develops ultra-fast solid state disk (SSD) products using standard interfaces like Fibre Channel and SAS. Their SSD products have outperformed other storage technologies in customer benchmarks. With headquarters in Boston and offices in Europe, Solid Access focuses on global opportunities through direct sales and partners. Their SSD products eliminate latency and boost IOPS and performance for applications with heavy random I/O workloads.
Edison IBM FlashSystem and Tributary White Paper Final
This document discusses a new data protection solution combining IBM FlashSystem flash storage with Tributary Systems' Storage Director software. Storage Director virtualizes tape storage and applies data protection services. Using IBM FlashSystem as its cache improves Storage Director's performance dramatically by replacing mechanical disks with fast flash storage. Tests show the solution reduces batch processing times, allows multiple simultaneous access to data, and cuts effective flash storage costs through data compression. The combination delivers "tape at the speed of flash" for improved data protection and lower costs.
PAM g.tr 3832
This technical report provides best practices for implementing NetApp's Performance Acceleration Module (PAM I) and Flash Cache solutions. It discusses how PAM I and Flash Cache improve storage system performance by caching frequently accessed data in memory or flash modules, allowing data to be served much faster than from disk. The report covers how the solutions work, different modes of operation, performance expectations, interactions with other Data ONTAP features, and how to monitor performance. The goal is to help readers make well-informed decisions about using PAM I and Flash Cache to enhance storage controller performance without adding disk drives.
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DiskSim Project Introduction
- 2. OVERVIEW 11/13/20152 What is DiskSim? What does DiskSim do? Some DiskSim version. Extension of DiskSim SSD extension. HDD extension. PCM extension. Current Progress of Project. SSD power consumption. HDD power consumption. PCM power consumption.
- 3. What is DiskSim? 11/13/2015 3 DiskSim was developed at the Carnegie Mellon University. Disk system simulator that created to support research, efficient and accurate, and can be applied in a variety of design environments. Open Source. Driver Bus Controller … Controller Bus … Bus DiskModel …. SSDModel DiskSim (Events, States …) Configuration File Trace File Statistic
- 4. What does DiskSim do? 11/13/20154 To understand modern storage subsystem performance. To understand how storage performance relates to overall system performance. To evaluate new storage subsystem architectures. DiskSim 4.0 source code http://www.pdl.cmu.edu/DiskSim/ SSD Extension http://research.microsoft.com/en- us/downloads/b41019e2-1d2b-44d8-b512- ba35ab814cd4/
- 5. Some DiskSim version. 11/13/20155 DiskSim v2.0 DiskSim v3.0 DiskSim v4.0 DiskSim 4.0 is an updated release of DiskSim 3.0 with several new features, enhancements, and bug fixes. DiskSim 4.0 release includes the MEMS-based storage device simulator and the automated disk characteristics extraction tool, Dixtrac. It also includes a new disk layout model, called G4 model.
- 6. Extension of DiskSim. SSD Extension. 11/13/20156 To provide limited support for SSD simulation Not a simulator for any specific SSD, but rather a simulator for an idealized SSD.
- 7. Extension of DiskSim. HDD Extension. 11/13/20157 Dempsey is a disk simulation environment that includes accurate modeling of disk power consumption. Dempsey : Disk Energy Modeling and Performance Simulation Environment. Dempsey extends DiskSim simulator to model power consumption and performance characteristics of hard disks.
- 8. Extension of DiskSim. PCM Extension. 11/13/20158 PCM is a new technology. DiskSim doesn’t have PCM extension. We are developing independent PCM extension.
- 9. Current Progress of Project. 11/13/20159 We have to do these tasks Develop power consumption for SSD extension. Integrate and improve Dempsey (measure power consumption) for HDD. Develop own PCM extension consist of measuring power consumption.