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Although Flash Memory based Solid State Drive (SSD) exhibits high performance and low power consumption, a critical concern is its limited lifespan along with the associated reliability issues. In this paper, we propose to build a Content-Aware Flash Translation Layer (CAFTL) to enhance the endurance of SSDs at the device level. With no need of any semantic(More)
MapReduce has become an effective approach to big data analytics in large cluster systems, where SQL-like queries play important roles to interface between users and systems. However, based on our Face book daily operation results, certain types of queries are executed at an unacceptable low speed by Hive (a production SQL-to-MapReduce translator). In this(More)
BitTorrent (BT) has carried out a significant and continuously increasing portion of Internet traffic. While several designs have been recently proposed and implemented to improve the resource utilization by bridging the application layer (overlay) and the network layer (underlay), these designs are largely dependent on Internet infrastructures, such as(More)
We propose an I/O classification architecture to close the widening semantic gap between computer systems and storage systems. By <i>classifying</i> I/O, a computer system can request that different classes of data be handled with different storage system <i>policies</i>. Specifically, when a storage system is first initialized, we assign performance(More)
Diseases caused by viruses especially by white spot syndrome virus (WSSV) are the greatest challenge to worldwide shrimp aquaculture. The innate immunity of shrimp has attracted extensive attention, but no factor involved in the virus resistance has been reported. Here we report for the first time the identification of an antiviral gene from shrimp Penaeus(More)
In invertebrates, C-type lectin plays an important role in innate immunity by mediating the recognition of pathogens to host cells and clearing microinvaders. A few C-type lectins have been identified from shrimps, but none of their gene or protein sequences is known to date. In this paper, a C-type lectin (named PmLec) specific for bacterial(More)
Hemocyanin, the respiratory protein of arthropods and mollusks, was found to function against bacterial and fungal invasion. In this study, we show that this protein complex could delay the infection of white spot syndrome virus (WSSV) in vivo and cloned two hemocyanin subunits genes (PjHcL and PjHcY) from the shrimp Penaeus japonicus. Further investigation(More)
A natural lectin (nominated PjLec) was isolated from haemolymph of the shrimp Penaeus japonicus by affinity chromatography with fetuin-Sepharose. The result of SDS-PAGE showed that the purified PjLec protein consisted of 37kDa subunits. The native PjLec behaved as a 452kDa protein in gel filtration chromatography. Those data suggest that PjLec is composed(More)
A unique challenge for SSD storage caching management in a virtual machine (VM) environment is to accomplish the dual objectives: maximizing utilization of shared SSD cache devices and ensuring performance isolation among VMs. In this paper, we present our design and implementation of S-CAVE, a hypervisor-based SSD caching facility, which effectively(More)
INTRODUCTION The dysfunction and decrease of endothelial progenitor cells (EPCs) may play a very important role in the initiation of organ dysfunction caused by trauma or severe sepsis. We aim to measure the number and function of EPCs in the progression of multiple organ dysfunction syndromes (MODS) caused by severe sepsis, which may help to understand the(More)