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Live migration of virtual machines (VM) is one of the key characteristics of virtualization for load balancing, system maintenance, power management, etc., in data centers or clusters. In order to reduce the data transferred and shorten the migration time, the compression techniques have been widely used to accelerate VM migration. However, different compression approaches have different compression...
Nowadays, high-bandwidth networks are easily accessible in data centers. However, existing distributed graph-processing frameworks fail to efficiently utilize the additional bandwidth capacity in these networks for higher performance, due to their inefficient computation and communication models, leading to very long waiting times experienced by users for the graph-computing results. The root cause...
Software delays have become the bottleneck to the overall storage system. Particularly, in iSCSI-based storage system, more disks in the target-end system are configured to make up a target node, but requests initiated by the initiator-end system will go through the traditional single I/O path before they are re-requested by the target-end system, which cannot exploit the serviceability of the target...
Time Machine is an Augmented Reality (AR) system for enhancing tourists' traveling experience. Based on optimized panoramic images, we proposed a novel spatiotemporal interactive approach which imbues users the ability to interact with both the spatial world and its history. Time machine utilizes panorama of a specific place at different time for achieving interactions with temporal dimension. It...
In this paper, we present the design and performance evaluation of Oasis, an active storage framework for object-based storage systems that complies with the current T10 OSD standard. In contrast with previous work, Oasis has the following advantages. First, Oasis enables users to transparently process the OSD object and supports different processing granularity (from the single object to all the...
Object-oriented storage system is a distributed storage systems with a storage device directly connected to the network. In existing encryption schemes the protection of the sensitive data is achieved mainly through an encrypted data storage system, but the encryption key is protected only by a weak password. This is a security risk to storage system, so the key protection is an important issue that...
With data amount growing at an ever increasing rate, file system, as the basis of data management, its functionality and content are becoming more and more complex. Thus the file system is forced to be upgraded constantly, in order to satisfy the growing demands. However, the reinvention of new file systems is always a high-cost task. Although there are frameworks such as User-space File System that...
Storage management server, compatible with decoupled data and meta data fashion, is being employed frantically to build large-scale distributed storage system for performance and capacity. To design this hot commodity on flexibly managing the extracted data with little meta data but extended attributes has become a big challenge. This paper breaks a new way to object orient store and implement the...
Fast non-volatile storage, such as non-volatile RAM and battery-backed volatile RAM, is widely deployed as the write cache in the storage controller to hide the latency of writes and prevent data loss. Due to the high cost of nonvolatile RAM and the short life of battery, the write cache is always much smaller than the read cache. To extend the size of write cache, we propose a Compressed Write Cache...
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