公开(公告)号：WO2004095284A2

公开(公告)日：2004-11-04

申请号：PCT/GB2004/001726

申请日：2004-04-19

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM UNITED KINGDOM LIMITED ,  BOYD, Kenneth, Wayne ,  FRISKE, Robert, Charles ,  HOOD, Robert, Allen ,  KALOS, Matthew, Joseph ,  KERN, Robert, Frederic

Inventor： BOYD, Kenneth, Wayne ,  FRISKE, Robert, Charles ,  HOOD, Robert, Allen ,  KALOS, Matthew, Joseph ,  KERN, Robert, Frederic

IPC: G06F12/00

CPC classification number: G06F3/0631 ,  G06F3/0605 ,  G06F3/067 ,  Y10S707/955 ,  Y10S707/99931 ,  Y10S707/99942 ,  Y10S707/99943 ,  Y10S707/99944 ,  Y10S707/99945

Abstract: A data management system has at least one class distinction cue associated with a class of data entities. The class distinction cue comprises data management guidance information and priority information related to the associated class of data entities. For a data entity, at run-time, a data management allocation run-time system references the class distinction cue or cues prior to conducting data management allocation or access, and, based on the priority information as compared to other priority information related to the data storage resources, selectively allocates the data storage resources and provides the operations of the storage system in the data management allocation system for the data entity.

公开(公告)号：WO2012055705A1

公开(公告)日：2012-05-03

申请号：PCT/EP2011/067866

申请日：2011-10-13

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM UNITED KINGDOM LIMITED ,  KLEIN, Steven, Edward ,  SHERMAN, Daniel, Wayne ,  KALOS, Matthew, Joseph ,  DANG, Dung, Ngoc

Inventor： KLEIN, Steven, Edward ,  SHERMAN, Daniel, Wayne ,  KALOS, Matthew, Joseph ,  DANG, Dung, Ngoc

IPC: G06F13/42

CPC classification number: G06F13/4282

Abstract: A method for dynamically enabling and disabling use of XFR_RDY is disclosed herein. In one embodiment of the invention, such a method includes receiving a write command at a target and determining whether XFR_RDY is enabled or disabled for the write command. In the event XFR_RDY is disabled, the method determines whether one or more buffers are available at the target. If at least one buffer is available, the method processes the write command by writing data associated with the write command to the one or more buffers. The method then returns information indicating the number of buffers that are still available at the target after completing the write command. A corresponding apparatus and computer program product are also disclosed and claimed herein.

Abstract translation: 本文公开了一种用于动态地启用和禁用XFR_RDY的方法。 在本发明的一个实施例中，这种方法包括在目标处接收写入命令，并确定写入命令是否启用或禁用XFR_RDY。 在XFR_RDY被禁用的情况下，该方法确定目标是否有一个或多个缓冲区可用。 如果至少有一个缓冲区可用，该方法通过将与写入命令相关联的数据写入一个或多个缓冲器来处理写入命令。 该方法然后在完成写命令之后返回指示目标上仍然可用的缓冲器的数量的信息。 本文还公开并要求对应的装置和计算机程序产品。

公开(公告)号：WO2009101052A1

公开(公告)日：2009-08-20

申请号：PCT/EP2009/051447

申请日：2009-02-09

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM UNITED KINGDOM LIMITED ,  CASPER, Daniel ,  HATHORN, Roger ,  RICCI, Louis ,  FLANAGAN, John ,  YUDENFRIEND, Harry ,  KALOS, Matthew ,  BENDYK, Mark ,  SITTMANN III, Gustav ,  HUANG, Catherine ,  CARLSON, Scott

Inventor： CASPER, Daniel ,  HATHORN, Roger ,  RICCI, Louis ,  FLANAGAN, John ,  YUDENFRIEND, Harry ,  KALOS, Matthew ,  BENDYK, Mark ,  SITTMANN III, Gustav ,  HUANG, Catherine ,  CARLSON, Scott

IPC: G06F13/38 ,  G06F3/06

CPC classification number: G06F13/385

Abstract: A computer program product, an apparatus, and a method for processing communications between a control unit and a channel subsystem in an input/output processing system are provided. The computer program product includes a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method including: sending a message from the channel subsystem to the control unit in a first mode; receiving a response from the control unit and determining from the response whether the control unit supports a message protocol; and responsive to the message protocol being supported by the control unit, sending another message using the message protocol from the channel subsystem to the control unit to determine whether the control unit supports a second mode.

Abstract translation: 提供了一种用于处理输入/输出处理系统中的控制单元和通道子系统之间的通信的计算机程序产品，装置和方法。 所述计算机程序产品包括可由处理电路读取的有形存储介质，并且存储由所述处理电路执行以执行方法的指令，所述方法包括：以第一模式从所述通道子系统向所述控制单元发送消息; 从所述控制单元接收响应并根据所述响应确定所述控制单元是否支持消息协议; 并且响应于所述控制单元支持的所述消息协议，使用所述消息协议从所述信道子系统向所述控制单元发送另一个消息，以确定所述控制单元是否支持第二模式。

公开(公告)号：WO2009101051A1

公开(公告)日：2009-08-20

申请号：PCT/EP2009/051446

申请日：2009-02-09

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM UNITED KINGDOM LIMITED ,  CASPER, Daniel ,  FLANAGAN, John ,  HUANG, Catherine ,  KALOS, Matthew ,  RICCI, Louis

Inventor： CASPER, Daniel ,  FLANAGAN, John ,  HUANG, Catherine ,  KALOS, Matthew ,  RICCI, Louis

IPC: G06F13/10

CPC classification number: G06F13/385

Abstract: A computer program product, an apparatus, and a method for processing communications between a control unit and a channel subsystem in an input/output processing system are provided. The computer program product includes a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method. The method includes: sending a command from the channel subsystem to the control unit to initiate an input/output operation; setting a time period for completion of the operation; and responsive to the operation not completing within the time period, sending a message to determine whether the control unit has an exchange open for the command.

Abstract translation: 提供了一种用于处理输入/输出处理系统中的控制单元和通道子系统之间的通信的计算机程序产品，装置和方法。 计算机程序产品包括可由处理电路读取的有形存储介质，并且存储由处理电路执行以执行方法的指令。 该方法包括：从通道子系统向控制单元发送命令以启动输入/输出操作; 设置完成操作的时间段; 并且响应于在该时间段内未完成的操作，发送消息以确定控制单元是否具有为该命令打开的交换机。

公开(公告)号：WO2009071573A4

公开(公告)日：2009-06-11

申请号：PCT/EP2008/066695

申请日：2008-12-03

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM UNITED KINGDOM LIMITED ,  BENHASE, Michael, Thomas ,  FIENBLIT, Shachar ,  HSU, Yu-Cheng ,  KALOS, Matthew, Joseph

Inventor： BENHASE, Michael, Thomas ,  FIENBLIT, Shachar ,  HSU, Yu-Cheng ,  KALOS, Matthew, Joseph

IPC: G06F11/14

Abstract: Provided are a method, system, and computer program product for determining whether to use a full volume or repository for a logical copy backup space. A determination is made of a source volume to backup using a logical copy operation. The logical copy operation is completed upon indicating the source volume data to backup. During a logical copy duration, point-in-time data in the source volume as of a point-in-time when the logical copy was established is copied to a backup space in response to receiving an update to the point- in-time data. A history of writes to the source volume is processed to determine whether to allocate a full target volume as the backup space providing a corresponding data unit for each data unit in the source volume or allocate a repository as the backup space, wherein the repository uses less storage space than the full target volume. The logical copy operation using the determined full target volume or repository as the backup space is initiated.

公开(公告)号：WO2007096230A2

公开(公告)日：2007-08-30

申请号：PCT/EP2007/050886

申请日：2007-01-30

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM UNITED KINGDOM LIMITED ,  KALOS, Matthew, Joseph ,  KUBO, Robert, Akira ,  RIPBERGER, Richard, Anthony ,  SONG, Cheng-Chung

Inventor： KALOS, Matthew, Joseph ,  KUBO, Robert, Akira ,  RIPBERGER, Richard, Anthony ,  SONG, Cheng-Chung

CPC classification number: G06F11/2069 ,  G06F11/2082 ,  G06F11/2094

Abstract: An apparatus, system, and method are disclosed for concurrently relocating a RAID array. The apparatus includes an identification module, a designation module, and an implementation module. The identification module identifies an availability of a physical device within a donor arrayed storage device to offload a source drive of a relocation enclosure. The designation module designates an available physical device as a target drive and thereby designate the target drive and the source drive as a linked pair. The implementation module implements a mirroring relationship between the target drive and the source drive. The apparatus, system, and method provide a dynamic relocation of the raid array, minimizing system downtime and maximizing efficient utilization of system resources.

Abstract translation: 公开了用于同时重新定位RAID阵列的装置，系统和方法。 该装置包括识别模块，指定模块和实现模块。 识别模块识别供体排列的存储设备内的物理设备的可用性，以卸载重定位机箱的源驱动器。 指定模块将可用的物理设备指定为目标驱动器，从而将目标驱动器和源驱动器指定为链接对。 实现模块实现目标驱动器和源驱动器之间的镜像关系。 设备，系统和方法提供了RAID阵列的动态重定位，最大限度地减少系统停机时间并最大限度地提高系统资源的有效利用率。

公开(公告)号：WO2005055040A3

公开(公告)日：2005-12-08

申请号：PCT/EP2004052800

申请日：2004-11-04

Applicant: IBM ,  IBM FRANCE ,  CHEN JAMES C ,  HUYNH MINH-NGOC L ,  KALOS MATTHEW J ,  FUNG CHUNG M

Inventor： CHEN JAMES C ,  HUYNH MINH-NGOC L ,  KALOS MATTHEW J ,  FUNG CHUNG M

IPC: G06F3/06 ,  H04L12/56

CPC classification number: G06F3/065 ,  G06F3/0611 ,  G06F3/067 ,  G06F3/0689 ,  H04L47/10

Abstract: Methods, system and computer program product are provided to improve, the efficiency of data transfers in a PPRC environment. Any or all of three features may be implemented, each of which reduces the number of round trips required for the exchange of handshaking, data and control information. A first feature includes disabling the "transfer ready" acknowledgment which normally occurs between a primary storage controller and a secondary storage controller. A second feature includes pre-allocating payload and data buffers in the secondary storage controller. A third feature includes packaging write control information with a write command in an extended command descriptor block (CDB). Such a step eliminated the need for a separate transmission of the write control information. The CDB is transmitted along with a data block from the primary storage controller to the secondary storage controller and placed in the respective, pre-allocated buffers. Data may also be pipelined to the secondary. By decreasing the response time for data transfers, the distance separating the primary and secondary storage controllers may be increased.

Abstract translation: 提供了方法，系统和计算机程序产品，以提高PPRC环境中数据传输的效率。 可以实现三个特征中的任何一个或全部特征，其中每个特征都减少交换握手，数据和控制信息所需的往返次数。 第一个特征包括禁用通常在主存储控制器和辅助存储控制器之间发生的“传输就绪”确认。 第二个功能包括在辅助存储控制器中预先分配有效负载和数据缓冲区。 第三特征包括利用写入命令在扩展命令描述符块（CDB）中打包写入控制信息。 这样的步骤消除了对写入控制信息的单独传输的需要。 CDB与数据块一起从主存储控制器传输到辅助存储控制器，并放置在各自的预先分配的缓冲区中。 数据也可以流水到次要位置。 通过减少数据传输的响应时间，可以增加分隔主存储控制器和辅助存储控制器的距离。

公开(公告)号：WO2005055040A2

公开(公告)日：2005-06-16

申请号：PCT/EP2004/052800

申请日：2004-11-04

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  Compagnie IBM FRANCE ,  CHEN, James C. ,  HUYNH, Minh-Ngoc L. ,  KALOS, Matthew J. ,  FUNG, Chung M.

Inventor： CHEN, James C. ,  HUYNH, Minh-Ngoc L. ,  KALOS, Matthew J. ,  FUNG, Chung M.

IPC: G06F3/06

CPC classification number: G06F3/065 ,  G06F3/0611 ,  G06F3/067 ,  G06F3/0689 ,  H04L47/10

Abstract: Methods, system and computer program product are provided to improve, the efficiency of data transfers in a PPRC environment. Any or all of three features may be implemented, each of which reduces the number of round trips required for the exchange of handshaking, data and control information. A first feature includes disabling the "transfer ready" acknowledgment which normally occurs between a primary storage controller and a secondary storage controller. A second feature includes pre-allocating payload and data buffers in the secondary storage controller. A third feature includes packaging write control information with a write command in an extended command descriptor block (CDB). Such a step eliminated the need for a separate transmission of the write control information. The CDB is transmitted along with a data block from the primary storage controller to the secondary storage controller and placed in the respective, pre-allocated buffers. Data may also be pipelined to the secondary. By decreasing the response time for data transfers, the distance separating the primary and secondary storage controllers may be increased.

Abstract translation: 提供方法，系统和计算机程序产品来提高PPRC环境中数据传输的效率。 可以实现三个特征中的任何一个或全部，每个特征减少交换握手，数据和控制信息所需的往返次数。 第一个功能包括禁用通常在主存储控制器和辅助存储控制器之间发生的“传送就绪”确认。 第二特征包括在副存储控制器中预分配有效载荷和数据缓冲器。 第三个特征包括在扩展命令描述符块（CDB）中用写入命令封装写入控制信息。 这样的步骤消除了对写入控制信息的单独发送的需要。 CDB与来自主存储控制器的数据块一起传送到辅助存储控制器并且被放置在相应的预先分配的缓冲器中。 数据也可以流水线到次级。 通过减少数据传输的响应时间，可以增加分离主存储控制器和辅助存储控制器的距离。

公开(公告)号：WO2004081790A1

公开(公告)日：2004-09-23

申请号：PCT/GB2004/000964

申请日：2004-03-10

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM UNITED KINGDOM LIMITED ,  DUGAN, Robert ,  FLANAGAN, John ,  FRAZIER, Giles ,  KALOS, Matthew ,  RICCI, Louis ,  TROWELL, Kenneth ,  YUDENFRIEND, Harry

Inventor： DUGAN, Robert ,  FLANAGAN, John ,  FRAZIER, Giles ,  KALOS, Matthew ,  RICCI, Louis ,  TROWELL, Kenneth ,  YUDENFRIEND, Harry

IPC: G06F11/00

CPC classification number: H04L41/0677 ,  H04L1/20 ,  H04L43/0811

Abstract: A computer Input/Output system having a fabric, a control unit (CU) and a host computer including a channel, the channel having a channel port connected by a first link to a channel neighbor port of the fabric, and the control unit having a CU port connected by a second link to a CU neighbor port on the fabric. When an error is detected in the link or protocol between the channel and the control unit, error data are reported to the channel by the channel, the channel port, the channel neighbor port, the control unit, the CU port and the CU neighbor port and sent to the channel. The error data are provided to the host computer for analysis.

Abstract translation: 一种具有结构的计算机输入/输出系统，控制单元（CU）和包括通道的主机，所述通道具有通过第一链路连接到所述结构的通道相邻端口的通道端口，并且所述控制单元具有 CU端口通过第二个链路连接到Fabric上的CU邻居端口。 当在通道和控制单元之间的链路或协议中检测到错误时，通道，通道端口，通道邻居端口，控制单元，CU端口和CU邻居端口向通道报告错误数据 并发送到频道。 将错误数据提供给主计算机进行分析。

公开(公告)号：WO2013000603A1

公开(公告)日：2013-01-03

申请号：PCT/EP2012/058104

申请日：2012-05-03

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM UNITED KINGDOM LIMITED ,  HATHORN, Roger ,  FLANAGAN, John ,  RICCI, Louis ,  CARLSON, Scott ,  KALOS, Matthew, Joseph ,  YUDENFRIEND, Harry ,  RIEDY, Dale ,  CASPER, Daniel, Francis ,  CANDELARIA, Susan, Kay

Inventor： HATHORN, Roger ,  FLANAGAN, John ,  RICCI, Louis ,  CARLSON, Scott ,  KALOS, Matthew, Joseph ,  YUDENFRIEND, Harry ,  RIEDY, Dale ,  CASPER, Daniel, Francis ,  CANDELARIA, Susan, Kay

IPC: G06F13/12

CPC classification number: G06F3/0659 ,  G06F3/061 ,  G06F3/0683 ,  G06F13/42

Abstract: A computer program product is configured for performing a method including: generating at least one command message by a channel subsystem of the host computer system, the at least one command message including one or more device command words (DCWs), wherein at least one DCW of the one or more DCWs includes a suppress-length indication (SLI) configured to instruct a control unit to continue to perform the I/O operation in response to the control unit detecting that the data count does not match an amount of data required; receiving an incorrect length (IL) value, the IL value being a first IL value in response to the SLI being a first SLI value and the data count not matching the amount of data required; and responsive to receiving the IL value from the control unit, storing an IL indicator in a subchannel-status word.

Abstract translation: 计算机程序产品被配置用于执行一种方法，包括：通过主计算机系统的信道子系统生成至少一个命令消息，所述至少一个命令消息包括一个或多个设备命令字（DCW），其中至少一个DCW 所述一个或多个DCW包括抑制长度指示（SLI），其被配置为指示控制单元响应于所述控制单元检测到所述数据计数与所需数据量不匹配而继续执行所述I / O操作; 接收到不正确的长度（IL）值，IL值是响应于SLI是第一SLI值并且数据计数不匹配所需数据量的第一IL值; 并且响应于从所述控制单元接收到IL值，将IL指示符存储在子信道状态字中。