公开(公告)号：US09547459B1

公开(公告)日：2017-01-17

申请号：US13928907

申请日：2013-06-27

Applicant: EMC IP Holding Company LLC

Inventor： Gabriel BenHanokh ,  Assaf Natanzon ,  Arieh Don ,  Eitan Ben-Amos ,  Erez Sde-Or

IPC: G06F12/00 ,  G06F3/06

CPC classification number: G06F3/0689 ,  G06F3/0611 ,  G06F3/0614 ,  G06F3/0646 ,  G06F3/065

Abstract: Described are techniques for storing data. A data access pattern is identified for accessing a first set of data portions of a first logical device, wherein the data access pattern includes a time-ordered list of consecutively accessed logical addresses of the first logical device. The first set of data portions are arranged on a second logical device. The first set of data portions have corresponding logical addresses on the second logical device and such corresponding logical addresses have a consecutive sequential ordering based on the data access pattern. The first set of data portions are stored at physical device locations mapped to the corresponding logical addresses of the second logical device.

Abstract translation: 描述了用于存储数据的技术。 识别用于访问第一逻辑设备的第一组数据部分的数据访问模式，其中数据访问模式包括第一逻辑设备的连续访问的逻辑地址的时间排序列表。 第一组数据部分被布置在第二逻辑设备上。 第一组数据部分在第二逻辑设备上具有对应的逻辑地址，并且这些对应的逻辑地址具有基于数据访问模式的连续顺序排序。 第一组数据部分存储在映射到第二逻辑设备的相应逻辑地址的物理设备位置处。