Abstract: Technologies are generally described for methods and systems effective to generate an alert in a data center. In some examples, a device may detect an execution of a virtual machine in the data center. The device may also analyze traffic data at a port that may be in the data center. The traffic data may be associated with a communication from the virtual machine to a destination address through the port. The device may also compare the destination address with a data center address of the data center. The device may also generate the alert based on the comparison.

Abstract: Technologies are generally described for systems, devices and methods effective to migrate a virtual machine between computing devices. A first and second node may be identified effective to access the virtual machine at a first computing device. First and second vectors related to the first and second nodes, respectively, may be determined. The first and second vectors may relate to values of a parameter. The parameter may relate to communication between the nodes and the first computing device. The vectors may form a distribution. A feature of the distribution of the vectors may be determined A first magnitude between the first computing device and the feature may be determined A second magnitude between the second computing device and the feature may be determined. The virtual machine may be migrated from the first computing device to the second computing device if the second magnitude is less than the first magnitude.

Abstract: In one example, a method may include assigning a time requirement for a transmission of data from a first data storage node to a second data storage node, assigning a maximum channel transmission rate for each of a maximum number of available transmission channels based on predetermined parameters of a transmission channel, and transmitting the data in accordance with the time requirement and the maximum number of available transmission channels

Abstract: In some examples, a data storage on a cloud platform may be configured to provide cloud services access to general data while preserving the access right to private data. General data is accessible to all applications. The identity information of applications that may access private data may be stored on the data storage. When the identity information of a requesting application matches the identity information stored on the data storage, the cloud platform may grant the access to private data.

Abstract: In a cloud computing environment, a server application hosted by a server may form a plurality of guilds by clustering multiple network terminals of similar performance together. The server application may then allocate computing resources to the guilds accordingly.

Abstract: In some examples, a method for rebuilding a source provider service environment in a target provider environment is described. The method may include identifying, using a service meta-app describing a service in a source provider environment, an internal direct dependency of the service. The method may also include accessing a dependency meta-app describing the internal direct dependency. The method may also include building the internal direct dependency according to the dependency meta-app in a target provider environment. The method may also include fetching an image of the service. The method may also include installing the image of the service in the target provider environment. The method may also include configuring the installed image of the service to depend from the internal direct dependency according to the service meta-app.

Abstract: In some examples, a method for rebuilding a source provider service environment in a target provider environment is described. The method may include identifying, using a service meta-app describing a service in a source provider environment, an internal direct dependency of the service. The method may also include accessing a dependency meta-app describing the internal direct dependency. The method may also include building the internal direct dependency according to the dependency meta-app in a target provider environment. The method may also include fetching an image of the service. The method may also include installing the image of the service in the target provider environment. The method may also include configuring the installed image of the service to depend from the internal direct dependency according to the service meta-app.

Abstract: In some examples, a method is described. The method may include parting a data item into multiple data units based on update frequencies of the data units. The method may also include identifying a low update frequency data unit from amongst the data units. The method may also include determining a regional sensitive group for the low update frequency data unit based on a historical access pattern of the low update frequency data unit. The regional sensitive group may include a first host. The method may also include replicating the low update frequency data unit. The method may also include pushing the replicated low update frequency data unit to the first host.