公开(公告)号：WO2007057396A3

公开(公告)日：2007-08-09

申请号：PCT/EP2006068458

申请日：2006-11-14

Applicant: IBM ,  IBM UK ,  BENHASE MICHAEL THOMAS ,  CHEN JAMES CHIEN-CHIUNG ,  HUYNH MINH-NGOC LE ,  KLEIN STEVEN EDWARD

Inventor： BENHASE MICHAEL THOMAS ,  CHEN JAMES CHIEN-CHIUNG ,  HUYNH MINH-NGOC LE ,  KLEIN STEVEN EDWARD

IPC: G06F3/06 ,  G06F11/20 ,  H04L29/08

CPC classification number: H04L67/1097 ,  G06F11/201 ,  G06F11/2071 ,  G06F11/2089

Abstract: Provided are a method, system and program for selecting a path comprising ports on primary and secondary clusters to use to transmit data at a primary volume to a secondary volume. A request is received to copy data from a primary storage location to a secondary storage location. A determination is made from a plurality of primary clusters of an owner primary cluster for the primary storage location, wherein the primary clusters are configured to access the primary storage location. A determination is made as to whether there is at least one port on the owner primary cluster providing an available path to the secondary storage location. One port on the owner primary cluster is selected to use to copy the data to the secondary storage location in response to determining that there is at least one port on the owner primary cluster available to transmit to the secondary storage location.

Abstract translation: 提供了用于选择包括主要和次要群集上的端口以用于在主要卷上将数据传输到次要卷的路径的方法，系统和程序。 接收到将数据从主存储位置复制到辅助存储位置的请求。 根据主存储位置的所有者主集群的多个主集群进行确定，其中主集群被配置为访问主存储位置。 确定在所有者主群集上是否存在至少一个端口提供到辅助存储位置的可用路径。 响应于确定所有者主集群上存在至少一个可用于传输到辅助存储位置的端口，选择所有者主集群上的一个端口用于将数据复制到辅助存储位置。

公开(公告)号：WO2005055041A3

公开(公告)日：2005-11-17

申请号：PCT/EP2004052979

申请日：2004-11-16

Applicant: IBM ,  IBM UK ,  BENHASE MICHAEL THOMAS ,  CHEN JAMES CHIEN-CHIUNG ,  LU PATRICIA CHING ,  CARBERRY FREDERICK JAMES II

Inventor： BENHASE MICHAEL THOMAS ,  CHEN JAMES CHIEN-CHIUNG ,  LU PATRICIA CHING ,  CARBERRY FREDERICK JAMES II

IPC: G06F3/06 ,  G06F17/21 ,  H04L29/06 ,  H04L29/08

CPC classification number: H04L67/1097 ,  G06F3/0619 ,  G06F3/0659 ,  G06F3/067

Abstract: Provided are a method, system and article of manufacture, wherein in certain embodiments an I/O command from a host is received at a first storage unit. An identifier is generated that identifies a destination to which the I/O command is to be transmitted from the first storage unit. The I/O command is augmented with the generated identifier at the first storage unit. The augmented I/O command is transmitted. In certain other embodiments, an I/O command is received at a storage unit, wherein the storage unit is associated with a storage unit identifier. A determination is made at the storage unit, whether the I/O command is associated with an identifier that identifies a destination for which the I/O command is intended. A further determination is made, at the storage unit, whether the identifier is the same as the storage unit identifier, in response to determining that the identifier associated with the I/O command identifies the destination for which the I/O command is intended.

Abstract translation: 提供了一种方法，系统和制造品，其中在某些实施例中，来自主机的I / O命令在第一存储单元处被接收。 生成识别从第一存储单元发送I / O命令的目的地的标识符。 I / O命令在第一个存储单元处增加了生成的标识符。 增加的I / O命令被传输。 在某些其他实施例中，在存储单元处接收I / O命令，其中存储单元与存储单元标识符相关联。 在存储单元中确定I / O命令是否与识别I / O命令所针对的目的地的标识符相关联。 响应于确定与I / O命令相关联的标识符识别I / O命令的目的地，在存储单元处进一步确定标识符是否与存储单元标识符相同。

公开(公告)号：JP2005158062A

公开(公告)日：2005-06-16

申请号：JP2004331141

申请日：2004-11-15

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： CHEN JAMES CHIEN-CHIUNG ,  SPEAR GAIL A ,  HUYNH MINH-NGOC L ,  FUNG CHUNG MAN ,  LU PATRICIA CHING ,  DANG DUNG

IPC: G06F13/14 ,  G06F12/00 ,  G06F13/18 ,  G06F15/16 ,  G06F15/173

CPC classification number: G06F9/5038 ,  G06F11/2076 ,  G06F2209/5021

Abstract: PROBLEM TO BE SOLVED: To provide a method, system and program for assigning a priority order.
SOLUTION: The technique for assigning a priority order is disclosed. A request for operating data is received. The type of the request is specified. The priority order is assigned to the request based on the type of the request.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供用于分配优先级顺序的方法，系统和程序。

解决方案：公开了分配优先顺序的技术。 接收到操作数据的请求。 指定请求的类型。 优先顺序根据请求的类型分配给请求。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：WO2009021949A2

公开(公告)日：2009-02-19

申请号：PCT/EP2008060573

申请日：2008-08-12

Applicant: IBM ,  BARTFAI ROBERT FRANCIS ,  BOYD KENNETH WAYNE ,  CHEN JAMES CHIEN-CHIUNG ,  DAY KENNETH FAIRCLOUGH III ,  FIENBLIT SHACHAR ,  MCBRIDE GREGORY EDWARD ,  MESSINA DAVID ,  NICHOLSON ROBERT BRUCE ,  SPEAR GAIL ANDREA

Inventor： BARTFAI ROBERT FRANCIS ,  BOYD KENNETH WAYNE ,  CHEN JAMES CHIEN-CHIUNG ,  DAY KENNETH FAIRCLOUGH III ,  FIENBLIT SHACHAR ,  MCBRIDE GREGORY EDWARD ,  MESSINA DAVID ,  NICHOLSON ROBERT BRUCE ,  SPEAR GAIL ANDREA

IPC: G06F11/20 ,  G06F12/16

CPC classification number: G06F11/2082 ,  G06F11/2056 ,  G06F11/2069 ,  H04L67/1095

Abstract: Provided are a method, system, and article of manufacture for splitting writes between a storage controller and replication engine. A splitter executing in a storage controller manages access to primary volumes. An initialization command is received to communicate with a replication engine. A replication command is received for one primary volume and the primary volume is indicated as subject to replication. A write request is received to write data to a target primary volume of the primary volumes that is indicated as subject to the replication. The data in the write request is written to the target primary volume. The data in the write request is sent to the replication engine. The replication engine executes a copy services function associated with the target primary volume to write the data to a replication engine volume.

Abstract translation: 提供了一种用于在存储控制器和复制引擎之间分割写入的方法，系统和制品。 在存储控制器中执行的分离器管理对主卷的访问。 接收初始化命令以与复制引擎进行通信。 接收到一个主卷的复制命令，主卷被指定为受复制。 接收写入请求以将数据写入到以复制形式表示的主卷的目标主卷上。 写请求中的数据将写入目标主卷。 写请求中的数据被发送到复制引擎。 复制引擎执行与目标主卷关联的复制服务功能，以将数据写入复制引擎卷。

公开(公告)号：DE68919624D1

公开(公告)日：1995-01-12

申请号：DE68919624

申请日：1989-09-21

Applicant: IBM

Inventor： CHEN JAMES CHIEN-CHIUNG ,  SHIH SHIH MING ,  YU MANTLE MAN-HON

IPC: G11B21/08 ,  G11B5/55 ,  G11B21/10 ,  H02P25/06 ,  G11B5/596

Abstract: A disk file digital servo control system utilizes a state estimator wherein the voice coil motor (VCM) (40) current is modeled, rather than measured, thereby eliminating the need for analog-to-digital conversion of the actual VCM current. The VCM current is fed back directly to the input to the power amplifier (42) where it is summed with the control signal output. This effectively changes the integrating power amplifier into a low pass filtering power amplifier, with linear input-output characteristics. Thus, during track following or short seeks, the VCM current is estimated based on this linear model. During long seeks, when the power amplifier is saturated, the VCM current is modeled based upon the known VCM characteristics during saturation, which include the effects of the back electromotive force and the coil current rise time. The microprocessor (50) in the digital servo control system determines which VCM current model to use by a determination of when the power amplifier is in saturation. In the preferred embodiment, the microprocessor determines power amplifier saturation based upon a value of the head velocity error, which is the difference between the commanded velocity and the estimated velocity.

公开(公告)号：DE68919624T2

公开(公告)日：1995-05-24

申请号：DE68919624

申请日：1989-09-21

Applicant: IBM

Inventor： CHEN JAMES CHIEN-CHIUNG ,  SHIH SHIH MING ,  YU MANTLE MAN-HON

IPC: G11B21/08 ,  G11B5/55 ,  G11B21/10 ,  H02P25/06 ,  G11B5/596

Abstract: A disk file digital servo control system utilizes a state estimator wherein the voice coil motor (VCM) (40) current is modeled, rather than measured, thereby eliminating the need for analog-to-digital conversion of the actual VCM current. The VCM current is fed back directly to the input to the power amplifier (42) where it is summed with the control signal output. This effectively changes the integrating power amplifier into a low pass filtering power amplifier, with linear input-output characteristics. Thus, during track following or short seeks, the VCM current is estimated based on this linear model. During long seeks, when the power amplifier is saturated, the VCM current is modeled based upon the known VCM characteristics during saturation, which include the effects of the back electromotive force and the coil current rise time. The microprocessor (50) in the digital servo control system determines which VCM current model to use by a determination of when the power amplifier is in saturation. In the preferred embodiment, the microprocessor determines power amplifier saturation based upon a value of the head velocity error, which is the difference between the commanded velocity and the estimated velocity.