Accurate Hardware RAID Simulator

The performance of HPC storage systems depend upon a variety of factors. The results of using any of the standard benchmark suites for storage depends not only on the storage architecture, but also on the type of disk drives, type and design of the interconnect, and the type and number of clients. In addition, each of the benchmark suites have a number of different parameters and test methodolo...

The functionality and performance innovations in file systems and storage systems have proceeded largely independently from each other over the past years. The result is an information gap: neither has information about how the other is designed or implemented, which can result in a high cost of maintenance, poor performance, duplication of features, and limitations on functionality. To bridge ...

The major hydraulic phase in all the calcium aluminate cements including ciment fondue is CA (CaAl2O4). Once hydrated, it starts to form the hexagonal crystals of CAH10 and C2AH8 that depending on the time and temperature of hydration convert to the cubic crystals of C3AH6 and AH3. The nature, sequence, ...

from bygone to now, colors are aspects of nature that have been regarded scientists. in ancient greece, essence of color and its relationship with light and vision in natural philosophy and especially optics has been studied. results of greek thinkers in the field chromatics, from pythagoras to aristotle through of translating scientific and philosophical texts, received to muslim scholars and ...

khoy, one of the major cities in the west azarbaijan province is known for its nature, military, border positions, proximity to the silk road, including many different cultures and overall is one of the important settlements in the area. this essay investigates khoy city’s expansion, from early islam until late qajar (fourth - fourteenth century) according to historical documents. this article ...

We have designed, prototyped, and evaluated the Legend file system, which exploits the ability to regenerate lost files to improve reliability. Unlike RAID-5 and RAID-6, Legend degrades gracefully as the number of failed storage devices increases. Legend also mitigates the high storage capacity overhead imposed by n-way replications. Combined with existing methods, Legend can form another line ...