A General-Purpose File System for Secondary Storage

2001 ◽  
pp. 138-166
Author(s):  
Robert C. Daley ◽  
Peter G. Neumann
Keyword(s):  
File System ◽  
General Purpose ◽  
Secondary Storage

A file system for a general-purpose time-sharing environment

1975 ◽  
Vol 63 (6) ◽  
pp. 918-924 ◽  
Author(s):  
G.C. Pirkola
Keyword(s):  
File System ◽  
General Purpose ◽  
Time Sharing

scholarly journals Navigating Unmountable Media with the Digital Forensics XML File System

1970 ◽  
Vol 12 (2) ◽  
pp. 309-326
Author(s):  
Alexander Nelson ◽  
Alexandra Chassanoff ◽  
Alexendra Holloway
Keyword(s):  
Digital Forensics ◽  
File System ◽  
Storage Systems ◽  
Storage System ◽  
General Purpose ◽  
Computer Storage ◽  
Available Resources ◽  
File System Metadata

Some computer storage is non-navigable by current general-purpose computers. This could be because of obsolete interface software, or a more specialized storage system lacking widespread support. These storage systems may contain artifacts of great cultural, historical, or technical significance, but implementing compatible interfaces that are fully navigable may be beyond available resources. We developed the DFXML File System (DFXMLFS) to enable navigation of arbitrary storage systems that fulfill a minimum feature set of the POSIX file system standard. Our approach advocates for a two-step workflow that separates parsing the storage’s file system structures from navigating the storage like a contemporary file system, including file contents. The parse extracts essential file system metadata, serializing to Digital Forensics XML for later consumption as a read-only file system.

scholarly journals dCache - joining the noWORM storage club

2019 ◽  
Vol 214 ◽  
pp. 04048
Author(s):  
Tigran Mkrtchyan ◽  
Olufemi Adeyemi ◽  
Patrick Fuhrmann ◽  
Vincent Garonne ◽  
Dmitry Litvintsev ◽  
...  
Keyword(s):  
File System ◽  
Distributed Storage ◽  
Storage System ◽  
Original Data ◽  
General Purpose ◽  
Scientific Data ◽  
Raspberry Pi ◽  
New Developments ◽  
Flexible Architecture ◽  
System Life

For over a decade, dCache.ORG has provided robust software, called dCache, that is used at more than 80 universities and research institutes around the world, allowing these sites to provide reliable storage services for the WLCG experiments and many other scientific communities. The flexible architecture of dCache allows running it in a wide variety of configurations and platforms - from all-in-one Raspberry-Pi up to hundreds of nodes in multi-petabyte infrastructures. The life cycle of scientific data is well defined - collected, processed, archived and finally deleted, when it’s not needed anymore. Moreover, during all those stages the data is never modified: either the original data is used, or new derived data is produced. With this knowledge, dCache was designed to handle immutable files as efficiently as possible. Data replication, HSM connectivity and data-server independent operations are only possible due to the immutable nature of stored data. Nowadays many commercial vendors provide such write-once-read-many or WORM storage systems, as they become more and more demanded with grown demand of audio, photo and video content in the web. On the other hand by providing standard NFSv4.1 interface dCache is often used as a general-purpose file-system, especially by new communities, like photon scientists or microbiologists. Although many users are aware of data immutability, some applications and use cases still require in-place updates of stored files. To satisfy new requirements some fundamental changes have to be applied to dCache’s core design. However, new developments must not compromise any aspect of existing functionality. In this presentation we will show new developments in dCache to turn it into a regular file system. We will discuss the challenges to build a distributed storage system, ‘life’ with POSIX compliance, handling of multiple replicas and backward compatibility by providing WORM and noWORM capabilities within the same storage system.

A general purpose design automation file system

1967 ◽  
Author(s):  
T. Beretvas ◽  
C. H. Liu ◽  
R. L. Taylor
Keyword(s):  
Design Automation ◽  
File System ◽  
General Purpose

PENGARUH LATIHAN RANGE OF MOTION (ROM) AKTIF ASSITIF TERHADAP RENTANG GERAK SENDI PADA LANSIA YANG MENGALAMI IMMOBILISASI FISIK

2019 ◽  
Vol 13 (2) ◽  
Author(s):  
Andri Setyorini ◽  
Niken Setyaningrum
Keyword(s):  
Range Of Motion ◽  
Human Life ◽  
The Elderly ◽  
General Purpose ◽  
Test Statistic ◽  
Physical Mobility ◽  
Motion Exercise ◽  
The One ◽  
The Individual ◽  
Active Training

Background: Elderly is the final stage of the human life cycle, that is part of the inevitable life process and will be experienced by every individual. At this stage the individual undergoes many changes both physically and mentally, especially setbacks in various functions and abilities he once had. Preliminary study in Social House Tresna Wreda Yogyakarta Budhi Luhur Units there are 16 elderly who experience physical immobilization. In the social house has done various activities for the elderly are still active, but the elderly who experienced muscle weakness is not able to follow the exercise, so it needs to do ROM (Range Of Motion) exercise.   Objective: The general purpose of this research is to know the effect of Range Of Motion (ROM) Active Assitif training to increase the range of motion of joints in elderly who experience physical immobility at Social House of Tresna Werdha Yogyakarta unit Budhi Luhur.   Methode: This study was included in the type of pre-experiment, using the One Group Pretest Posttest design in which the range of motion of the joints before (pretest) and posttest (ROM) was performed  ROM. Subjects in this study were all elderly with impaired physical mobility in Social House Tresna Wreda Yogyakarta Unit Budhi Luhur a number of 14 elderly people. Data analysis in this research use paired sample t-test statistic  Result: The result of this research shows that there is influence of ROM (Range of Motion) Active training to increase of range of motion of joints in elderly who experience physical immobility at Social House Tresna Wredha Yogyakarta Unit Budhi Luhur.  Conclusion: There is influence of ROM (Range of Motion) Active training to increase of range of motion of joints in elderly who experience physical immobility at Social House Tresna Wredha Yogyakarta Unit Budhi Luhur.

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