NDLI: Write twice disk buffering

Content Provider	IEEE Xplore Digital Library
Author	Orji, C.U. Solworth, J.A.
Copyright Year	1994
Description	Author affiliation: Sch. of Comput. Sci., Florida Int. Univ., Miami, FL, USA (Orji, C.U.)
Abstract	Non-volatile (safe) disk buffers improve performance in DBMSs. Writes to the disk buffer are durable without incurring physical disk writes. Moreover, physical writes at the disk can be performed at low cost using write piggybacking and multiblock purges. However, safe disk buffers are expensive. In this paper, unsafe buffers are used to simulate safe buffers, by writing each block twice to disk. The first write is performed immediately, anywhere. The second write is deferred, but written at a fixed location. These two writes together cost less than a single random write.
Starting Page	27
Ending Page	34
File Size	680374
Page Count	8
File Format	PDF
ISBN	0818664002
DOI	10.1109/PDIS.1994.331735
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-09-28
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Costs Delay Read-write memory Writing Power system reliability Fault tolerance Random access memory Computer science Throughput Batteries
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 Libarray 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

Write twice disk buffering