公开(公告)号：US09383924B1

公开(公告)日：2016-07-05

申请号：US13779630

申请日：2013-02-27

Applicant: NetApp, Inc.

Inventor： John Keith Fullbright ,  Clinton Douglas Knight

IPC: G06F12/02 ,  G06F3/06

CPC classification number: G06F3/0608 ,  G06F3/0652 ,  G06F3/0665 ,  G06F3/067 ,  G06F12/023

Abstract: Techniques for reclaiming storage space are disclosed herein. According to one embodiment, a storage space reclamation method includes a storage host creating at least one temporary logical container of data in a storage volume managed by a file system of a host so that a predetermined portion of storage capacity of the storage volume is occupied. Access to the storage volume is provided by a network storage controller to the storage host. The storage host translates a host address range for the file system of each temporary logical container of data into a storage controller address range for the network storage controller. The storage host requests the network storage controller to deallocate blocks the locations of which are indicated by the storage controller address range, and then deletes the at least one temporary logical container of data.

Abstract translation: 本文公开了用于回收存储空间的技术。 根据一个实施例，存储空间回收方法包括存储主机，其在由主机的文件系统管理的存储卷中创建数据的至少一个临时逻辑容器，从而占用存储卷的存储容量的预定部分。 访问存储卷由网络存储控制器提供给存储主机。 存储主机将每个临时逻辑数据容器的文件系统的主机地址范围转换为网络存储控制器的存储控制器地址范围。 存储主机请求网络存储控制器取消对其位置由存储控制器地址范围指示的块，然后删除该数据的至少一个临时逻辑容器。