公开(公告)号：US06535967B1

公开(公告)日：2003-03-18

申请号：US09488206

申请日：2000-01-19

Applicant: Michael Steven Milillo ,  David Beal ,  David Glenn Hostetter ,  Christopher J. West ,  Peter H. Tallman ,  Theresa Lynn Segura ,  Scott Adam States

Inventor： Michael Steven Milillo ,  David Beal ,  David Glenn Hostetter ,  Christopher J. West ,  Peter H. Tallman ,  Theresa Lynn Segura ,  Scott Adam States

IPC: G06F1200

CPC classification number: G06F11/2074

Abstract: A method and apparatus for transferring data from a first storage system to a second storage system in which the first storage system includes a first plurality of storage devices and the second storage system includes a second plurality of storage devices. Data is transferred using a pair of devices selected for transferring data for all of the storage devices. Data to be transferred from source storage devices within the first plurality of storage devices is placed or queued on a selected primary storage device within the first plurality of storage devices. The data is sent to a selected secondary storage device within the plurality of storage devices. The data is relocated from the selected secondary storage device to target storage devices within the second plurality of storage devices.

Abstract translation: 一种用于将数据从第一存储系统传送到第二存储系统的方法和装置，其中第一存储系统包括第一多个存储设备，而第二存储系统包括第二多个存储设备。 使用选择的一对设备传输数据，用于传输所有存储设备的数据。 要从第一多个存储设备内的源存储设备传送的数据被放置或排队在第一多个存储设备内的所选择的主存储设备上。 数据被发送到多个存储设备内的选定的辅助存储设备。 将数据从所选择的辅助存储设备重新定位到第二多个存储设备内的目标存储设备。

公开(公告)号：US6058462A

公开(公告)日：2000-05-02

申请号：US12496

申请日：1998-01-23

Applicant: Christopher James West ,  David Glenn Hostetter ,  Michael Richard Crater ,  Steven Christopher Fraioli

Inventor： Christopher James West ,  David Glenn Hostetter ,  Michael Richard Crater ,  Steven Christopher Fraioli

IPC: G06F11/00 ,  G06F13/14

CPC classification number: G06F11/0727 ,  G06F11/0763 ,  G06F11/1004 ,  G06F11/1456 ,  G11B20/00007 ,  G11B20/1833 ,  G06F11/1076 ,  G11B2020/1843 ,  G11B2220/20

Abstract: A system incorporating the invention stores data on communicating disk drives in such a manner as to enable recovery of the data in the event a failure of one of the disk drives. The system includes a first disk drive and a second disk drive, both for storing compressed data records in compressed track formats. Each compressed data record includes a CRC value. A cache stores compressed tracks of data records that are read from the first disk drive and a CRC value is calculated for each stored track of compressed data records. That CRC value is appended to the compressed track. A switch is coupled between the cache, a host processor and the second disk drive for dispatching and receiving tracks of compressed data records between the first disk drive and the second disk drive. The switch includes computational circuitry for calculating a CRC value for each track of compressed data records received from the cache and for determining a match or non-match state with the CRC value appended to each track of compressed data records. In such manner, a system which is primarily adapted to handle records with appended CRC values is adapted to handle tracks of compressed data records with appended CRC values so as to assure data integrity.

Abstract translation: 结合本发明的系统以使得能够在盘驱动器之一的故障的情况下恢复数据的方式存储关于传送磁盘驱动器的数据。 该系统包括第一磁盘驱动器和第二磁盘驱动器，用于以压缩轨迹格式存储压缩数据记录。 每个压缩数据记录包括CRC值。 高速缓存存储从第一磁盘驱动器读取的数据记录的压缩轨迹，并且为每个存储的压缩数据记录的轨道计算CRC值。 该CRC值附加到压缩轨道。 交换机耦合在高速缓存，主处理器和第二磁盘驱动器之间，用于在第一磁盘驱动器和第二磁盘驱动器之间调度和接收压缩数据记录的轨道。 该交换机包括计算电路，用于计算从高速缓存接收的压缩数据记录的每个磁道的CRC值，以及用于确定附加到压缩数据记录的每个轨道的CRC值的匹配或不匹配状态。 以这种方式，主要适于处理具有附加CRC值的记录的系统适于处理具有附加CRC值的压缩数据记录的轨道，以便确保数据完整性。