公开(公告)号：US20120110377A1

公开(公告)日：2012-05-03

申请号：US12914458

申请日：2010-10-28

申请人： Kapil Sundrani

发明人： Kapil Sundrani

IPC分类号： G06F11/20

CPC分类号： G06F11/1076 ,  G06F3/061 ,  G06F3/064 ,  G06F3/0689

摘要： A first and a second physical disk identifier, a physical Logical Block Address (LBA), a data length, and a span identifier are calculated from a data write operation. A first request command frame is created for retrieving the existing data block from the storage array, the first request command frame including at least one of the calculated parameters. At least one second request command frame is created for retrieving the at least one existing parity data block from the storage array, the at least one second request command frame including the calculated at least one second physical disk identifier and at least one of the calculated parameters. At least one new parity data block is calculated utilizing the existing data block, the new data block, and the at least one existing parity data block.

摘要翻译： 从数据写入操作计算第一和第二物理盘标识符，物理逻辑块地址（LBA），数据长度和跨度标识符。 创建第一请求命令帧用于从存储阵列检索现有数据块，第一请求命令帧包括计算出的参数中的至少一个。 创建至少一个第二请求命令帧，用于从存储阵列检索至少一个现有奇偶校验数据块，所述至少一个第二请求命令帧包括所计算的至少一个第二物理盘标识符和至少一个计算参数 。 使用现有数据块，新数据块和至少一个现有奇偶校验数据块来计算至少一个新奇偶校验数据块。