NDLI: Caching and migration for multilevel persistent object stores

Content Provider	IEEE Xplore Digital Library
Author	Grossman, R. Hanley, D. Xiao Qin
Copyright Year	1995
Description	Author affiliation: Lab. for Adv. Comput., Illinois Univ., Chicago, IL, USA (Grossman, R.; Hanley, D.; Xiao Qin)
Abstract	We propose an architecture for scalable persistent object managers that provide access to large numbers of objects distributed over a variety of physical media. Our approach is lightweight in that we are interested in providing direct support for the creation, access, and updating of persistent objects, but only indirect support for the other functions traditionally associated with an object oriented database, such as transactions, back up, recovery, or a query language. This design allows application programmers access to the productivity and performance of using objects, while relying on an underlying hierarchical storage system to manage the large amounts of data. Our design is layered and multilevel in that it caches and migrates large-grained physical collections of objects called folios from tape to networked disks. Separately, it also caches and migrates smaller-grained physical collections of objects called segments between nodes on a network. Segments are then moved into memory as usual for persistent object managers. In this paper, we also describe the implementation of a system called PTool based upon this design and give a description of preliminary performance results.
Starting Page	127
Ending Page	135
File Size	892842
Page Count	9
File Format	PDF
ISBN	0818670649
ISSN	10519173
DOI	10.1109/MASS.1995.528223
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-09-11
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laboratories Object oriented databases Database languages Computer architecture Programming profession Productivity Memory management Algorithm design and analysis Computer network management NASA
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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