公开(公告)号：US20120124308A1

公开(公告)日：2012-05-17

申请号：US12948652

申请日：2010-11-17

Applicant: Theodore T. Harris, JR. ,  Paul A. Jennas, II ,  Jason L. Peipelman ,  Joshua M. Rhoades ,  Matthew J. Ward

Inventor： Theodore T. Harris, JR. ,  Paul A. Jennas, II ,  Jason L. Peipelman ,  Joshua M. Rhoades ,  Matthew J. Ward

IPC: G06F12/16 ,  G06F12/00

CPC classification number: G06F3/065 ,  G06F3/0611 ,  G06F3/0619 ,  G06F3/067 ,  G06F11/2064 ,  G06F11/2071 ,  G06F11/3409 ,  G06F11/3485

Abstract: Provided are a computer program product, system, and method for determining whether to extend a drain time to copy data blocks from a first storage to a second storage. A data structure is generated indicating data blocks in the first storage to copy to the second storage. A drain operation is initiated to copy the data blocks indicated in the first storage to the second storage for a drain time period. Write requests to the data blocks indicated in the data structure are queued during the drain time period, wherein the queued write requests are not completed while queued. Metric information based on the writes that occur to data blocks in the first storage are gathered during the drain time period; and in response to expiration of the drain time period, a determination is made from the gathered metric information of whether to continue the drain operation or terminate the drain operation.

Abstract translation: 提供了一种用于确定是否扩展排水时间以将数据块从第一存储复制到第二存储的计算机程序产品，系统和方法。 产生指示第一存储器中的数据块以复制到第二存储器的数据结构。 启动漏极操作以将第一存储器中指示的数据块复制到第二存储器以用于排出时间段。 在数据结构中指示的数据块的写入请求在排出时间期间排队，其中排队的写入请求在排队时未完成。 在排水期间收集基于在第一存储器中的数据块发生的写入的度量信息; 并且响应于排出时间段的到期，从收集的度量信息中确定是继续排水操作还是终止排水操作。

公开(公告)号：US07240132B2

公开(公告)日：2007-07-03

申请号：US10779215

申请日：2004-02-13

Applicant: James Chen ,  Chung Man Fung ,  Theodore T. Harris, Jr. ,  William H. Travis

Inventor： James Chen ,  Chung Man Fung ,  Theodore T. Harris, Jr. ,  William H. Travis

IPC: G06F3/00 ,  G06F11/00 ,  G06F15/173

CPC classification number: G06F11/2092 ,  G06F11/1443

Abstract: A method to provide information from a first information storage and retrieval system to a second information storage and retrieval system, where the first information storage and retrieval system comprises (N) PPRC adapters and information. The method generates and saves an Established Path Bitmap which recites the (N) PPRC adapters, and generates an Available Path Bitmap. If a PPRC adapter is in communication with the secondary storage system, then the method adds that adapter to the Available Path Bitmap. The primary information storage and retrieval system generates a PPRC task comprising a flag set to “off”. The method copies the Available Path Bitmap as a Working Bitmap, and generates a PPRC request comprising a flag set to “on”, selects one of the adapters recited in the Working Bitmap, and provides the PPRC request to that selected adapter. The method then once attempts to provide information to the second information storage and retrieval system using the selected adapter.

Abstract translation: 一种从第一信息存储和检索系统向第二信息存储和检索系统提供信息的方法，其中第一信息存储和检索系统包括（N）个PPRC适配器和信息。 该方法生成并保存了（N）个PPRC适配器的已建立路径位图，并生成可用路径位图。 如果PPRC适配器与辅助存储系统通信，则该方法将该适配器添加到可用路径位图。 主信息存储和检索系统生成包括设置为“关闭”的标志的PPRC任务。 该方法将可用路径位图复制为工作位图，并生成包含设置为“开”的标志的PPRC请求，选择工作位图中列出的适配器之一，并向所选适配器提供PPRC请求。 该方法然后曾尝试使用所选择的适配器向第二信息存储和检索系统提供信息。