公开(公告)号：EP0573308A2

公开(公告)日：1993-12-08

申请号：EP93304371.3

申请日：1993-06-04

Applicant: Compaq Computer Corporation

Inventor： Schneider, Randy D. ,  Flower, David L.

IPC: G06F3/06 ,  G06F11/10 ,  G06F12/08

CPC classification number: G11C29/88 ,  G06F11/1008 ,  G06F12/0804 ,  G06F12/0866

Abstract: A posting memory used in conjunction with a drive array to increase the performance of fault tolerant disk array write operations. When the posting memory flushes dirty data back to the disk array, the posting memory coalesces or gathers contiguous small write or partial stripe write requests into larger, preferably full stripe writes. This reduces the number of extra read operations necessary to update parity information. In this manner, the actual number of reads and writes to the disk array to perform the transfer of write data to the disk array is greatly reduced. In addition, when the posting memory is full, the posting memory delays small, i.e., partial stripe writes but allows full stripe writes or greater to pass directly to the disk array. This reduces the frequency of partial stripe writes and increases disk array performance.

Abstract translation: 发布内存与驱动器阵列结合使用，以提高容错磁盘阵列写入操作的性能。 当发布内存将脏数据刷新回磁盘阵列时，发布内存会将连续的小写或部分条带写入请求合并或收集为更大，最好是全条带写入。 这减少了更新奇偶校验信息所需的额外读取操作的数量。 以这种方式，实现向磁盘阵列传输写入数据的实际的磁盘阵列读写次数大大减少。 另外，当发布内存满时，发布内存延迟很小，即部分条带化写入，但是允许全部条带化写入或更高的速度直接传递到磁盘阵列。 这可以降低部分条带写入的频率并提高磁盘阵列的性能。

公开(公告)号：EP0426184A3

公开(公告)日：1993-07-28

申请号：EP90120981.7

申请日：1990-11-02

Applicant: Compaq Computer Corporation

Inventor： Schmenk, David S. ,  Grant, David L. ,  Schultz, Stephen M. ,  Neufeld, David E. ,  Flower, David L.

IPC: G06F3/06

CPC classification number: G06F3/0601 ,  G06F2003/0692

Abstract: A bus master interface command protocol for use with a computer system having an intelligent mass storage disk array subsystem, including a bus master and microprocessor controller. The command protocol permits the computer system to issue disk array commands to the controller at a logical level without having to issue disk specific commands. The disk array subsystem microprocessor controller reads the logical commands, translates the commands into smaller disk specific commands, and queues the disk specific commands for processing. Upon completion of the logical command, the bus master controller asserts control over the computer system bus and manages the transfer of data to or from the computer system memory. The management of the disk array subsystem and the transfer of data is effectively off-loaded from the system processor permitting more efficient use of the processor.

Abstract translation: 与具有智能大容量存储磁盘阵列子系统的计算机系统一起使用的总线主控接口命令协议，包括总线主控器和微处理器控制器。 命令协议允许计算机系统在逻辑级别向控制器发出磁盘阵列命令，而不必发出特定于磁盘的命令。 磁盘阵列子系统微处理器控制器读取逻辑命令，将命令转换成更小的磁盘特定命令，并排列特定于磁盘的命令以进行处理。 在完成逻辑命令后，总线主控制器断言对计算机系统总线的控制，并管理数据传入或传出计算机系统存储器。 磁盘阵列子系统的管理和数据传输从系统处理器中有效地卸载，允许更高效地使用处理器。

公开(公告)号：EP0428021A2

公开(公告)日：1991-05-22

申请号：EP90120979.1

申请日：1990-11-02

Applicant: Compaq Computer Corporation

Inventor： Schultz, Stephen M. ,  Schmenk, David S. ,  Neufeld, E. David ,  Grant, David L. ,  Flower, David L.

IPC: G06F3/06

CPC classification number: G06F3/0601 ,  G06F3/0613 ,  G06F3/0632 ,  G06F3/0689 ,  G06F11/1096 ,  G06F2003/0692

Abstract: For use with a computer system having an intelligent mass storage disk array subsystem, including a microprocessor controller, a method for the distribution of data within the disk array based upon logical commands issued by the computer system. The disk controller reads a logical command and translates the commands into multiple drive specific commands, including drive physical parameter information such as head, sector and cylinder selection. The calculation of these physical parameters is based upon a number of factors including the operating system installed in the computer system, the type of interleave scheme, if any, specified by the computer system configuration, and disk. specific parameters. The physical drive requests are then placed in a queue and executed by the microprocessor controller. The method also encompasses a method for creating a disk array configuration to be loaded on all disks within the array based on existing valid disk array information and configuration information maintained by the computer system.

Abstract translation: 用于具有包括微处理器控制器的智能大容量存储盘阵列子系统的计算机系统，基于由计算机系统发出的逻辑命令在盘阵列内分发数据的方法。 磁盘控制器读取逻辑命令并将命令转换为多个驱动器特定命令，包括驱动器物理参数信息，如磁头，扇区和磁盘选择。 这些物理参数的计算基于许多因素，包括安装在计算机系统中的操作系统，由计算机系统配置指定的交织方案的类型（如果有的话）以及盘特定参数。 然后将物理驱动器请求放置在队列中并由微处理器控制器执行。 该方法还包括基于由计算机系统维护的现有有效磁盘阵列信息和配置信息来创建要加载到阵列内的所有磁盘上的磁盘阵列配置的方法。