As the storage needs of computer applications and users become more sophisticated and increase beyond what can easily be satisfied by a few disk array controllers, aggregating and managing the many disparate components of the storage system become severe problems. Distributed disk systems, which manage collections of disks shared by or partitioned across multiple nodes, may offer a solution to ...

E. Larry Lidz, University of Chicago Looking at problems from the network: Often, we don’t have access to the machine we suspect of being involved in a compromise (the machine is physically inaccessible, it belongs to a student, etc.). Network audit logs can save the day: If we are able to go back and show where a problem came from, we can quickly resolve the problem. Also, if it is necessary t...

to investigate the changes in yield and yield components of dry land wheat (triticum aestivum l. cv agosta), under the influence of residue and nitrogen levels and different tillage practices, a field experiment was conducted during the 2006-2007 growing season, in the agricultural research station of the college of agriculture, shiraz university, iran. the experiment was designed as a split-sp...

Freeblock scheduling replaces a disk drive’s rotational latency delays with useful background media transfers, potentially allowing background disk I/O to occur with no impact on foreground service times. To do so, a freeblock scheduler must be able to very accurately predict the service time components of any given disk request — the necessary accuracy was not previously considered achievable ...

The Global File System (GFS) is a prototype design for a distributed file system in which cluster nodes physically share storage devices connected via a network-like Fibre Channel. Networks and network-attached storage devices have advanced to a level of performance and extensibility so that the previous disadvantages of shared disk architectures are no longer valid. This shared storage archite...

Freeblock scheduling replaces a disk drive’s rotational latency delays with useful background media transfers, potentially allowing background disk I/O to occur with no impact on foreground service times. To do so, a freeblock scheduler must be able to very accurately predict the service time components of any given disk request — the necessary accuracy was not previously considered achievable ...

With current estimates of data to be managed and made available increasing at 60% per annum, disk space utilization is becoming a critical performance issue for high end users, including but not limited to IT solutions, Storage Area Networks and Virtual Machine environment. We propose Dynamic Allocation of Disk Area (DADA), a disk management framework that performs on-demand disk area allocatio...

Abstract Machine learning (ML) is a well-established research topic in Industry 4.0 boosting its adoption. ML also used for manufacturing cost estimation during design. Such approaches are commonly to estimate the of mass-produced parts. Many consolidated historical data available training regression models. Unfortunately, very often, such database not available. The paper defines an approach p...

Reliability of a performance model is quintessential to the robust resource management of applications on the cloud platform. Existing studies show that the contention for shared I/O induces temporal performance variations in a guest VM and heterogeneity in the underlying hardware leads to relative performance difference between guest VMs of the same abstract type. In this work, we demonstrate ...

The most common form of storage media utilized in both commercial and domestic systems is the hard disk drive, consequently these devices feature heavily in digital investigations. Hard disk drives are a collection of complex components. These components include hardware and firmware elements that are essential for the effective operation of the drive. There are now a number of devices availabl...