公开(公告)号：GB2529436A

公开(公告)日：2016-02-24

申请号：GB201414750

申请日：2014-08-20

Applicant: IBM

Inventor： MUELLER-WICKE DOMINIC ,  SCHREIBER THOMAS ,  KUHL FABIAN ,  HAUSTEIN NILS ,  MUELLER CHRISTIAN

IPC: G06F11/14

Abstract: A distributed file system 102 is used by compute nodes 1113 to access storage devices 1213 via a network 120. A monitor 104 creates events in response to operations, which modify the file system. The events are grouped 106 and sent to backup clients 1313. The backup clients process the events to produce backup requests. The backup clients may use a shared database 150 to co-ordinate the processing. The backup requests are then sent to a backup server 140. Each event group has an identifier and a size. Each event includes the handle of the object in the file system, which is being modified, or the handle of its parent directory. It also includes the event type and the type of object. The events and handles may be Data Management Application Program Interface (DMAPI) events and handles. The file system objects may be file or directory objects.

公开(公告)号：GB2524798A

公开(公告)日：2015-10-07

申请号：GB201405999

申请日：2014-04-03

Applicant: IBM

Inventor： PETRAKI EIRINI ,  KUHL FABIAN ,  MUELLER CHRISTIAN ,  ZELLNER MARKUS

IPC: G06F11/36

Abstract: A method for testing a software product (10) comprising a plurality of software packages (P1, ..., P(Z)), which are to be installed or de-installed in defined order, comprises the steps: providing software package dependency and prerequi­site information (142) for the software product (10); analyzing the software package dependency and prerequisite information for each software package and creating a dependency matrix (112) for said software packages with each row representing one dependency lev­el; assigning each software package to at least one level based on its dependencies to other soft­ware packages; wherein in the dependency matrix (112) each level contains software packages, which have no dependencies amongst themselves and de­pend on at least one other software package assigned to a previ­ous level; and a lowest level contains software packages without any dependencies; reducing the depend­ency matrix (112) by searching for software packages assigned to more than one level, determin­ing the highest level the software package is as­signed to, and deleting the software package from lower levels it is assigned to; determining possible software package test combinations of the software product based on the reduced dependency matrix (112); and perform­ing installation or de-installation procedure of software pack­ages of the software product (10) based on the software package test combinations to test installation or deinstallation order of the software packages of the software product (10).