摘要:三种基本类型的缓存:绕写式(write-around),直写式(write-through)和回写式(write-back)。绕写式(write-around)缓存意味着所有数据首先被写入到硬盘区,当它成为合格的后,再基于读操作将它复制(注意不是移动)到闪存区。这意味着数据总是驻留在硬盘层,通常由R... 阅读全文
posted @ 2015-05-13 19:46 it_arch_notes 阅读(360) 评论(0) 推荐(0) 编辑