本文選題：重復(fù)數(shù)據(jù)刪除　切入點(diǎn)：元數(shù)據(jù)　出處：《北京理工大學(xué)學(xué)報(bào)》2014年05期 　論文類型：期刊論文

【摘要】：根據(jù)重復(fù)數(shù)據(jù)刪除的特點(diǎn),針對(duì)連續(xù)數(shù)據(jù)訪問(wèn)為主的應(yīng)用,設(shè)計(jì)基于B+樹(shù)的元數(shù)據(jù)索引結(jié)構(gòu);將元數(shù)據(jù)分為冷熱兩種,分別設(shè)計(jì)不同的元數(shù)據(jù)布局策略.研究結(jié)果表明,低能耗磁盤(pán)能夠保持更長(zhǎng)時(shí)間的待機(jī)狀態(tài)以便節(jié)能,同時(shí)可以有效地減少重復(fù)數(shù)據(jù)刪除時(shí)的隨機(jī)磁盤(pán)訪問(wèn)次數(shù).并且沒(méi)有額外的硬件開(kāi)銷,實(shí)現(xiàn)僅在磁盤(pán)上存儲(chǔ)索引,而不是之前研究中的在磁盤(pán)和內(nèi)存中存儲(chǔ)索引.
[Abstract]:According to the characteristics of repeated data deletion, the index structure of metadata based on B-tree is designed for the application of continuous data access, and the metadata is divided into two types: hot and cold, and different metadata layout strategies are designed. Low-power disks can maintain longer standby state to save energy, and can effectively reduce the number of random disk visits when data is deleted repeatedly. There is no additional hardware overhead, so the index can only be stored on disk. Rather than storing indexes in disk and memory as previously studied.
【作者單位】： 北京理工大學(xué)計(jì)算機(jī)學(xué)院;北京物資學(xué)院信息學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(61003262) 北京市“青年英才計(jì)劃”資助項(xiàng)目(YETP1532)
【分類號(hào)】：TP333

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 邱越峰,田增平,季文，

本文編號(hào)：1572196