公开(公告)号：GB2494491A

公开(公告)日：2013-03-13

申请号：GB201209647

申请日：2012-05-31

Applicant: IBM

Inventor： BOHRER PATRICK JOSEPH ,  GHEITH AHMED ,  PETERSON JAMES LYLE

IPC: H04L29/08

Abstract: A data model 306 (400, fig. 4) and data manager 308 running on a mobile device 302 together form a client-side data management cache providing an active view of attributes 1-3 (fig. 4) available from passive source 312 (eg. temperature sensor) over network 310 for use by mobile application 304 if subscribed. The data manager configures the items in structure 306 with further information about address, protocol, subscription policies (404-416) etc. The application defines the items to which it subscribes (fig. 5) and the data model (504) is then populated by the data manager (506) after retrieval from the source (516). Client-side caching is thus more responsive than server-side caching. Multiple mobiles accessing the same data item may employ peer-to-peer caching.

公开(公告)号：DE69521101T2

公开(公告)日：2001-10-18

申请号：DE69521101

申请日：1995-10-06

Applicant: IBM

Inventor： ATTANASIO CLEMENT RICHARD ,  BUTRICO MARIA ANGELA ,  PETERSON JAMES LYLE ,  POLYZOIS CHRISTOS ALKIVIADIS ,  SMITH STEPHEN EDWIN

IPC: G06F13/10 ,  G06F3/06 ,  G06F11/14 ,  G06F11/20 ,  G06F13/00 ,  G06F13/14

Abstract: A system and method for recovering from failures in the disk access path of a clustered computing system. Each node of the clustered computing system is provided with proxy software for handling physical disk access requests from applications executing on the node and for directing the disk access requests to an appropriate server to which the disk is physically attached. The proxy software on each node maintains state information for all pending requests originating from that node. In response to detection of a failure along the disk access path, the proxy software on all of the nodes directs all further requests for disk access to a secondary node physically attached to the same disk.

公开(公告)号：DE69521101D1

公开(公告)日：2001-07-05

申请号：DE69521101

申请日：1995-10-06

Applicant: IBM

Inventor： ATTANASIO CLEMENT RICHARD ,  BUTRICO MARIA ANGELA ,  PETERSON JAMES LYLE ,  POLYZOIS CHRISTOS ALKIVIADIS ,  SMITH STEPHEN EDWIN

IPC: G06F13/10 ,  G06F3/06 ,  G06F11/14 ,  G06F11/20 ,  G06F13/00 ,  G06F13/14

Abstract: A system and method for recovering from failures in the disk access path of a clustered computing system. Each node of the clustered computing system is provided with proxy software for handling physical disk access requests from applications executing on the node and for directing the disk access requests to an appropriate server to which the disk is physically attached. The proxy software on each node maintains state information for all pending requests originating from that node. In response to detection of a failure along the disk access path, the proxy software on all of the nodes directs all further requests for disk access to a secondary node physically attached to the same disk.

公开(公告)号：GB2494491B

公开(公告)日：2013-08-21

申请号：GB201209647

申请日：2012-05-31

Applicant: IBM

Inventor： BOHRER PATRICK JOSEPH ,  GHEITH AHMED ,  PETERSON JAMES LYLE

IPC: H04L29/08

Abstract: A method for managing data access in a mobile device is provided in the illustrative embodiments. Using a data manager executing in the mobile device, a data item is configured in a data model. A value parameter of the data item is populated with data and a status parameter of the data item is populated with a status indication. A subscription to the data item is received from a mobile application executing in the mobile device. In response to the subscription, the data and the status of the data item are sent to the mobile application.