公开(公告)号：US20150078111A1

公开(公告)日：2015-03-19

申请号：US14028142

申请日：2013-09-16

Applicant: NetApp, Inc.

Inventor： MAHMOUD K. JIBBE ,  Gary M. Gaston

IPC: G11C7/10

CPC classification number: G11C7/1006 ,  G06F11/1068 ,  G06F12/0246 ,  G06F2212/7205 ,  G11C13/0069 ,  G11C13/0097 ,  G11C16/3445

Abstract: A storage device issues parallel or concurrent write and erase commands, to write data in response to a request, and to erase blocks marked for deletion to free storage space for subsequent write requests. The storage device receives a write request from a disk controller to write data to a storage array. The storage device determines that one or more blocks are marked for deletion. In response to receiving the write request and determining that blocks are marked for deletion, the storage device issues a write command on a first media access channel for a first location of the storage array, and issues an erase command on a second media access channel for a different storage location of the storage array. Thus, the commands are issued concurrently on different channels.

Abstract translation: 存储设备发出并行或并发的写和擦除命令，以响应于请求写入数据，并且将标记为删除的块擦除为用于随后的写请求的空闲存储空间。 存储设备从磁盘控制器接收写请求以将数据写入存储阵列。 存储设备确定一个或多个块被标记为删除。 响应于接收到写请求并确定块被标记为删除，存储设备在存储阵列的第一位置的第一媒体访问信道上发出写入命令，并且在第二媒体访问信道上发出擦除命令 存储阵列的不同存储位置。 因此，这些命令在不同的通道上同时发出。