کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
460432 696341 2015 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Data loss recovery for power failure in flash memory storage systems
ترجمه فارسی عنوان
از دست دادن داده ها برای خرابی قدرت در سیستم های ذخیره سازی فلش مموری
کلمات کلیدی
شکست برق بازیابی قدرت از دست رفته مدیریت ذخیره سازی، سیستم ذخیره سازی فلش
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
چکیده انگلیسی

Due to the rapid development of flash memory technology, NAND flash has been widely used as a storage device in portable embedded systems, personal computers, and enterprise systems. However, flash memory is prone to performance degradation due to the long latency in flash program operations and flash erasure operations. One common technique for hiding long program latency is to use a temporal buffer to hold write data. Although DRAM is often used to implement the buffer because of its high performance and low bit cost, it is volatile; thus, that the data may be lost on power failure in the storage system. As a solution to this issue, recent operating systems frequently issue flush commands to force storage devices to permanently move data from the buffer into the non-volatile area. However, the excessive use of flush commands may worsen the write performance of the storage systems. In this paper, we propose two data loss recovery techniques that require fewer write operations to flash memory. These techniques remove unnecessary flash writes by storing storage metadata along with user data simultaneously by utilizing the spare area associated with each data page.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Systems Architecture - Volume 61, Issue 1, January 2015, Pages 12–27
نویسندگان
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