An Advanced Caching Solution to Cluster Storage Environment

Clustered storage is the deployment of multiple data servers working together to improve reliability, capacity and performance. Clustering divides workloads to every storage server to control and monitor workload transfer and file access between servers without taking into account of the physical location of the file. Solid State Drives (SSD) can be considered as a more sophisticated version of a USB memory stick since the memory stick does not have any moving part associated with it and moreover, data is stored in microchips. In this paper, we give an overview of an advanced caching solution to improve IO and application performance by using flash storage in cluster storage environment. It is a cluster storage solution with two highly scalable servers with optimizations to ensure fast service failovers and deploying one or two solid state drives as the cache devices for faster and better performance. The software supports write-back caching policy where both read and write requests on hot regions of drivesare cached. With write-back, write requests to the hot regions are acknowledged immediately after it is written to the cache device and this (dirty) data will be flushed to back-end virtual drive in the background. Flushing of dirty data will be performed by the flush manager of the software under different scenarios like amount dirty data reaches a threshold, IO activity during a time interval is low etc. The solution effectively harnesses the flash storage performance potential by retaining only frequently accessed data in flash for quick retrieval. The solution provides unmatched efficiency, performance, support and reliability for enterprises or storage world

Formalization of SOA concepts with mathematical foundation

With the development of the IT industry, agility and dynamicity are the two expected characteristics from any business enterprise. Service oriented architecture (SOA) is emerging as a promising approach aiming to address the current trends/needs of enterprise business applications. The current work aims at giving an overview of the conceptual model of SOA based on set theory approach. Also, it posits mathematical definitions for service, logical service, environment service and application definition with the help of general systems theory and mathematical foundation. With the help of mathematical model, the definition and functionality of services enhances SOA principles which can be used efficiently in integrating heterogeneous components

DESIGN OF NOVEL ELECTRONIC JACQUARD WITH MASTER-SLAVE ARCHITECTURE & DESIGN PARTITIONING

In India, very rarely one can find Computer controlled Power looms and Handlooms, because of cost involved in the technology, dearth of indigenous manufacturers of electronic jacquards suited for Indian looms because of the complexity of the technologies involved - mechanical, electrical, electronics & computers. This paper proposes Hardware & Software design and Implementation details of Electronic Jacquard Control System based on Master-Slave Architecture and Design Partitioning, which provides some specific advantages over the existing EJCS systems, for Indian Handlooms & Power looms

Implantless press fit graft fixation technique at Patella for MPFL reconstruction

Patellofemoral instability is one of the most prevalent knee disorders in adolescents. It is often multifactorial and complex. Often accompanied by insufficiency or tear of MPFL ligament. MPFL is primary soft tissue stabiliser of patella and acts as checkrein of lateral patella dislocation. There have been variations in surgical techniques including different choices of surgical techniques, graft material and fixation methods, despite these there is no conclusive evidence that a particular surgical option is superior to another. Recurrent Patella instability requires individualised surgical planning . In this article we present a surgical technique which is implantless socket type of press-fit fixation at patella

Analysis on IoT Challenges, Opportunities, Applications and Communication Models

Internet of Things (IoT) is a novel communication standard and it is researcher's preferred topic, which integrates heterogeneous systems seamlessly. Designing a universal architecture for IoT is a challenging task due to the integration of wide variety of the devices. The main objective of this paper is to provide comprehensive knowledge on challenges, applications, Security issues, and different communication models of IoT. This paper also focuses on the marketing trends of IoT with respect to variety of application with the end users. This motivates the researchers to contribute more productive work in this field by analyzing various parameters

HIGH PERFORMANCE SOFTWARE TOOL FOR SAREE WEAVING USING ELECTRONIC JACQUARDS

Adoption of Electronic jacquards to conventional Indian power looms & hand looms, becoming game changer for cost effective production and value creation for their output by adoption of new varieties of designs to suit the ever changing requirements of society. Here with we are proposing a software tool - set of algorithms / procedures useful for textile designers & master weavers for efficient & better adoption of electronic jacquards to Saree weaving. Adoption of Strides provided in C#.Net to implement algorithms resulted in processing of large size designs at phenomenal speeds

Design and development of electronic jacquard for Korai mat weaving loom

A low-cost computerised mat weaving handloom has beendeveloped. After successful field trials at the client locations,300% increase in productivity is observed. Now any weaver canweave mat of any design within 2 days instead of 6-8 days,increasing their earning per mat. Easy to use pedallingmechanism, electronic jacquard and the software tool aredeveloped. This innovation facilitates electronic design storage,eliminates recurring cost on punched cards and the weaverdependence on designers while weaving marriage mats. The welldesigned pedalling and jacquard lifting mechanism results inbetter ergonomics. The system is designed to operate with powerof just 75 watt, so that it can be driven by solar power

Software Performance Modeling in Distributed Computer Systems

Abstract. The rapidly evolving technology built into the computer systems are essential in current day's business environment. The result is an increasing need for tool