Capsule: an energy-optimized object storage system for memory-constrained sensor devices

Recent gains in energy-efficiency of new-generation NAND flash storage have strengthened the case for in-network storage by data-centric sensor network applications. This paper argues that a simple file system abstraction is inadequate for realizing the full benefits of high-capacity low-power NAND flash storage in data-centric applications. Instead we advocate a ect storage abstraction to support flexible use of the storage system for a variety of application needs and one that is specifically optimized for memory and energy-constrained sensor platforms. We propose Capsule, an energy-optimized log-structured object storage system for flash memories that enables sensor applications to exploit storage resources in a multitude of psule employs a hardware abstraction layer that hides the vagaries of flash memories for the application and supports energy-optimized implementations of commonly used storage objects such as streams, files, arrays, queues and lists. Further, Capsule ...

• Type: Conference
• Year: 2006
• Where: SENSYS
• Authors: Gaurav Mathur, Peter Desnoyers, Deepak Ganesan, Prashant J. Shenoy
• Keywords: NAND flash Storage, Sensor, Sensor Application, Sensor Networks, SENSYS 2006