Please wait, while we are loading the content...
Please wait, while we are loading the content...
Content Provider | ACM Digital Library |
---|---|
Author | Cao, Rui Xie, Guangjun Xu, Guangzhi Gao, Yan Liu, Xiaoguang Wang, Gang Zhen, Caijun |
Abstract | Cloud computing has become one of the hottest topics in both academia and industry. In cloud computing, virtualization is the fundamental technology, and the resource management is the key issue. Storage, an important resource, traditionally is allocated to users according to users' predictions, so may cause bad space utilization because of overprovisioning or underprovisioning. Dynamic adjusting is difficult because of the fixed address mapping used in the traditional storage systems. In this paper, we present an Allocation-On-Demand Incremental (AoDI) volume. It uses an appending rather than overwriting strategy to deal with the write requests. So we can obtain accurate storage space usage easily. Accompany with an automatic volume extension technique, AoDI can allocate storage space always matching users' real-time requirement, so avoids space waste. Based on appending strategy, we also design a Non-COW (Non Copy On Write) snapshot that is dramatically faster than traditional COW snapshots. Since snapshot is a frequent operation in cloud or virtualization systems, Non-COW snapshot can improve overall performance effectively. Another advantage of AoDI is translating random requests into sequential requests that obviously can speed up random access. We implement AoDI based on LVM (Logical Volume Manager) in Linux platform. Our experimental results show the great performance advantage of AoDI in snapshot and random access. |
Starting Page | 133 |
Ending Page | 138 |
Page Count | 6 |
File Format | |
ISBN | 9781450301138 |
DOI | 10.1145/1982185.1982219 |
Language | English |
Publisher | Association for Computing Machinery (ACM) |
Publisher Date | 2011-03-21 |
Publisher Place | New York |
Access Restriction | Subscribed |
Subject Keyword | Storage resource management Non-cow snapshot Automatic extension On-demand storage allocation Appending strategy |
Content Type | Text |
Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
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 |
Loading...
|