Abstract: A method and system for tracing components in computer applications is provided in which trace data from components can be logged in real time. A hierarchical control interface 209 is used in which leaf nodes 306-311 represent components 204 being traced. The hierarchical control interface 209 includes means for setting trace levels for components 204 being traced. A non-hierarchical trace system 210 is used for carrying out the trace processing and includes means 320 for storing trace level settings received from the hierarchical control interface 209. The trace system 210 also includes means 322 for receiving a call from a component 204 with trace data; means for checking the trace level settings 321 for the component 204; and means for storing or discarding the trace data accordingly.

Abstract: Provided are a method, apparatus, and computer program product for testing a virtualized storage system. Data defining one or more configuration features of the virtualized storage system is received. Also received is a set of one or more predetermined rules defining interpretation of the disk exercising commands, the interpretation being dependent on one or more of the configuration features. A first disk exercising command is received. The first disk exercising command is interpreted in accordance with one of the predetermined rules to produce a second disk exercising command. The second disk exercising command is sent to the virtualized storage system.

Abstract: A method and system for tracing components in computer applications is provided in which trace data from components can be logged in real time. A hierarchical control interface 209 is used in which leaf nodes 306-311 represent components 204 being traced. The hierarchical control interface 209 includes means for setting trace levels for components 204 being traced. A non-hierarchical trace system 210 is used for carrying out the trace processing and includes means 320 for storing trace level settings received from the hierarchical control interface 209. The trace system 210 also includes means 322 for receiving a call from a component 204 with trace data; means for checking the trace level settings 321 for the component 204; and means for storing or discarding the trace data accordingly.

Abstract: A method for tracing components in computer applications includes setting, within a hierarchical control interface, a trace level for a component; storing, within a non-hierarchical trace system, the trace level; receiving, in the non-hierarchical trace system, a call with trace data from the component; checking, within the non-hierarchical trace system, the trace level of the component; and acting upon the trace data according to the trace level setting.

Abstract: Provided are a method, apparatus, and computer program product for testing a virtualised storage system. Data defining one or more configuration features of the virtualised storage system is received. Also received is a set of one or more predetermined rules defining interpretation of the disk exercising commands, the interpretation being dependent on one or more of the configuration features. A first disk exercising command is received. The first disk exercising command is interpreted in accordance with one of the predetermined rules to produce a second disk exercising command. The second disk exercising command is sent to the virtualised storage system.