Phase Change Memory (PCM) presents an architectural challenge: writing to it is slow enough to make attaching it to a CPU’s main memory controller impractical, yet reading from it is so fast that using it in a peripheral storage device would leave much of its performance potential untapped at low command queue depths, throttled by the high latencies of the common peripheral buses and existing d...

This report describes a non-destructive fluidic memory device with associated fluidic alphanumeric display, developed by Giannini Controls Corporation under contract NAS 12-43 with NASA Electronics Research Center. The device uses the surface tension of a liquid bead in an hour-glassshaped cavity to achieve a bi-stable memory effect which does not require a continuous supply of fluid power. Thu...

Users frequently reuse their passwords when authenticating to various online services. Combined with the use of weak passwords or honeypot/phishing attacks, this brings high risks to the security of the user’s account information. In this paper, we propose several protocols that can allow a user to use a single password to authenticate to multiple services securely. All our constructions provab...

The cost of large storage systems is dominated by management costs. Typically, skilled administrators configure storage manually using rules of thumb. However, designing a storage system for a given workload is a difficult task, because there are millions of possible configurations and mappings of data, and because storage system behavior is complex. Ergastulum is a new storage system designer ...

In recent years, organic memory devices with an active layer sandwiched between two electrodes have attracted much attention as future information storage devices [1–5]. The demand on organic non-volatile memory devices increases rapidly due to their simplicity in device structure, good scalability, low cost potential, low power operation and large capacity for data storage. Electrical bistable...

The Clouds storage management system supports the object and action primitives provided by the Clouds kernel. Particularly, the storage manager is concerned with mapping object data into virtual memory and providing action and crash recovery for recoverable objects. This document presents some of the technical details in the testbed implementation of the storage manager. The storage manager's g...

Cache So, we can never reach a Final Understanding of anything because it will change as we develop understanding. If we did reach a Final Understanding, simultaneously the " subject " would have changed, rendering our understanding as past tense …. A cache (also called " look-aside " [Bloom et al. 1962] or " slave memory " [Wilkes 1965]) can speed up accesses to all manners of storage devices,...

The principles of optical fiber communication and optical data storage have evolved over the past decade into industry standards for transmission, distribution, storage, and archival of digital audio, multimedia, and computer data. The fundamentals of these sophisticated systems are traditionally taught in the lecture hall, and laboratory exposure to the hardware is at the device rather than th...

Computer forensic analysis, intrusion detection and disaster recovery are all dependent on the existence of trustworthy log files. Current storage systems for such log files are generally prone to modification attacks, especially by an intruder who wishes to wipe out the trail he leaves during a successful break-in. In light of recent advances in storage capacity and sharp drop in prices of sto...