摘要:
Aspects of the present invention provide a solution for passively monitoring a computer system. In an embodiment, an indexing agent operates on a physical server having a plurality of virtual servers. The indexing agent has a framework having a plurality of indexing layers. Each of these indexing layers is adapted to index a virtual server along a different abstraction level to extract abstraction level features indicative of changes in the virtual server. Further, each of the indexing layers has an application programming interface, which is adapted to receive one or more external indexing modules to be plugged into the framework. Each indexing module is adapted to provide instructions to the indexing agent while the indexing layer to which it is plugged is indexing the associated abstraction level of the virtual machine.
摘要:
A novel method is disclosed for capturing an installed state of a conventional application and converting the captured state into a virtual application. The novel method starts with a bare machine in a known state, preferably soon after the OS was installed. Installation scripts are used to install one or more software applications along with required components and dependencies. Other artifacts can be added and configured such as files, trees, directories, entries, data, values, among others. These also may include updates to various system databases, such as the Windows registry in which certain metadata is stored. The installed applications are tested and verified to work as desired. Undesired artifacts can be deleted manually or removed by the OS. The state of the virtual machine with the installed applications is captured. The installed applications can be tested on the frozen virtual machine. If the user determines that the installed applications are working properly, a virtual machine image is prepared and then written out. The resulting output is a new populated virtual application container that encapsulates the applications installed and configured by the user. If the user determines that one or more installed applications do not work properly during testing, then the frozen virtual machine can be unfrozen and any deficiencies corrected. The virtual machine image is stored as a launch document and a set of shards. The virtual machine image represents the state of the virtual machine along with the installed applications at the time the preparation virtual machine was frozen.
摘要:
A method for updating an application on a host system includes steps or acts of: installing an application on the host system; installing a virtual machine monitor on the host system, installing a first virtual container on the host system, wherein the first virtual container comprises at least one update to the installed application; and instantiating the first virtual container under the virtual machine monitor in a mode wherein the host system can be accessed but not modified and wherein instantiating the first virtual container includes updating the installed application in the first virtual computer and running the updated application in the first virtual container. The method may also include a step of confirming that the updated application runs properly. Optionally, the virtual container may be devirtualized.
摘要:
An information processing system includes a preparation machine with an installed image; an execution machine on which the installed image is virtually installed; and a virtualizer for virtualizing the installed image on the execution machine to produce a virtually installed image by using a hierarchy of selective virtualizers, wherein the virtualizing is selective such that not all operations of the executing software of the installed image at any particular level are virtualized.
摘要:
An information processing system includes a preparation machine with an installed image; an execution machine on which the installed image is virtually installed; and a virtualizer for virtualizing the installed image on the execution machine to produce a virtually installed image by using a hierarchy of selective virtualizers, wherein the virtualizing is selective such that not all operations of the executing software of the installed image at any particular level are virtualized.
摘要:
A method for operating a file system includes receiving a write instruction including a file descriptor associated with a file and a content identifier, a content offset, and a content length, associating a region within the file with the content identifier, saving the association of the region and the content identifier.
摘要:
Disclosed is a method, apparatus and a computer program of a virtual execution environment. In one aspect thereof a data processor includes a disk-based storage system and a virtual machine monitor configured to execute a program in a virtual container. The virtual machine monitor is responsive, prior to execution of the application, to record a set of files accessed during a phase change in the disk-based storage system in a manner predetermined to minimize the time needed to retrieve the set of files. The virtual machine monitor is further responsive, at the occurrence of the phase change, or prior to the occurrence of a phase change if the files are prefetched, to retrieve the files from the disk-based storage system. In a further aspect thereof there is provided a server of the virtual execution environment that includes a unit, responsive to receiving notification from the at least one virtual machine monitor of an occurrence of contemporaneous file accesses not associated with a known phase change of a virtual container, for evaluating the occurrence as a candidate phase change and, responsive to the evaluation indicating a presence of a previously unknown phase change, for adding a list of the files accessed to a phase change template for use by the same or a different virtual machine monitor during another instance of execution of the application.
摘要:
A method for performing software operations on virtual machine images, includes: receiving a virtual machine image that includes data; reclassifying the data into a plurality of parts; and performing a software operation on one of the parts, wherein the software operation is performed without running a virtual machine.
摘要:
An information processing system includes a preparation machine with an installed image; an execution machine on which the installed image is virtually installed; and a virtualizer for virtualizing the installed image on the execution machine to produce a virtually installed image by using a hierarchy of selective virtualizers, wherein the virtualizing is selective such that not all operations of the executing software of the installed image at any particular level are virtualized.
摘要:
A method for managing a virtual machine image includes receiving a request to change a package configuration of a machine, processing an image action received in the request, wherein the processing the image action received includes, opening the image action with associated action inputs, comparing the opened image action inputs with inputs associated with action instances in a database, determining whether the compared opened image action inputs match the inputs associated with action instances, retrieving from the database, image difference data associated with the image action responsive to determining that the compared opened image action inputs match the inputs associated with action instances in the database, and applying the image difference data to an image to transform the image, determining whether each image action in the request has been processed and processing a second image action responsive to determining that each image action has not been processed.