NDLI: Large-Scale Simulator for Global Data Infrastructure Optimization

Content Provider	IEEE Xplore Digital Library
Author	Herrero-Lopez, S. Williams, J.R. Sanchez, A.
Copyright Year	2011
Abstract	IT infrastructures in global corporations are appropriately compared with nervous systems, in which body parts (interconnected datacenters) exchange signals (request responses) in order to coordinate actions (data visualization and manipulation). A priori inoffensive perturbations in the operation of the system or the elements composing the infrastructure can lead to catastrophic consequences. Downtime disables the capability of clients reaching the latest versions of the data and/or propagating their individual contributions to other clients, potentially costing millions of dollars to the organization affected. The imperative need of guaranteeing the proper functioning of the system not only forces to pay particular attention to network outages, hot-objects or application defects, but also slows down the deployment of new capabilities, features and equipment upgrades. Under these circumstances, decision cycles for these modifications can be extremely conservative, and be prolonged for years, involving multiple authorities across departments of the organization. Frequently, the solutions adopted are years behind state-of-the art technologies or phased out compared to leading research on the IT infrastructure field. In this paper, the utilization of a large-scale data infrastructure simulator is proposed, in order to evaluate the impact of " what if" scenarios on the performance, availability and reliability of the system. The goal is to provide data center operators a tool that allows understanding and predicting the consequences of the deployment of new network topologies, hardware configurations or software applications in a global data infrastructure, without affecting the service. The simulator was constructed using a multi-layered approach, providing a granularity down to the individual server component and client action, and was validated against a downscaled version of the data infrastructure of a Fortune 500 company.
Starting Page	54
Ending Page	64
File Size	2501154
Page Count	11
File Format	PDF
ISBN	9781457713552
e-ISBN	9780769545165
DOI	10.1109/CLUSTER.2011.15
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-09-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Servers Hardware Software Solid modeling Computational modeling Organizations Predictive models IT infrastructure computer simulation system modeling
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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