This paper presents a paradigm for remote file access called Smart File Objects (SFOs). The SFO is a realization of the ELFS (Extensible File Systems) concept of files as typed objects, but applied to wide-area networks [9]. The SFO is an object-oriented application-specific file access paradigm designed to address the bottleneck imposed by high latency, low bandwidth, unpredictable, and unreli...

Advances in networking technologies have triggered the “storage as a service” (SAS) model. The SAS model allows content providers to leverage hardware and software solutions provided by the storage service providers (SSPs), without having to develop them on their own, thereby freeing them to concentrate on their core business. The SAS model is faced with at least two important security issues: ...

In this paper, we propose the design of the Integrated File Level Cryptographical Access Control (IFLCAC) system, which makes file security much easier for the end user to utilize. The proposed system combines the benefits of the traditional file-level cryptography and the full-disk cryptography system, making it both secure and easy to use. We first investigate the existing file cryptography s...

In this paper, we present a visual representation of access control permissions in a standard hierarchical file system. Our visualization of file permissions leverages treemaps, a popular graphical representation of hierarchical data. In particular, we present a visualization of access control for the NTFS file system that can help a non-expert user understand and manipulate file system permiss...

introduction: the aim of this study was to compare digital and conventional radiography in determining the working length of dilacerated canals.methods: thirty nine human extracted single-rooted teeth with root curvature more than 35 degrees were included in this study. after access preparation, a file was inserted into the canal and advanced until the file tip was visualized at the foramen. wi...

HDFS faces several issues when it comes to handling a large number of small files. These are well addressed by archive systems, which combine files into larger ones. They use index hold relevant information for retrieving file content from the big file. However, existing archive-based solutions require significant overheads since additional processing and I/Os needed acquire retrieval before ac...

Nearly all extant file access predictors attempt to identify the immediate successor to the file being currently accessed. As a result, they leave almost no time to prefetch the predicted file before it is accessed. We present here a Perceptron-based file predictor that identifies the files that will be accessed up to five accesses ahead. Experimental evidence shows that our early predictor can...