240 results about "Virtual cluster" patented technology

One embodiment of the present invention provides a switch. The switch includes a port that couples to a server hosting a number of virtual machines. The switch also includes a set of virtual port grouping information and a virtual port grouping mechanism. During operation, the virtual port grouping mechanism determines whether a frame is traveling from a virtual port group to the same virtual port group. If the frame is not traveling to the same virtual port group, the virtual port grouping mechanism prevents the frame from being forwarded.

One embodiment of the present invention provides a switch system. The switch includes a port profile which specifies a set of port configuration information. During operation, a control mechanism within the switch detects a source MAC address of an incoming frame and determines that the MAC address is associated with the port profile. The control mechanism then applies the port profile to a switch port on which the frame is received.

A method and system is provided intelligent network dispatchers that are capable of routing requests to one or more servers (e.g., LDAP servers) based on the requested application or the identity of the requester. The servers may be grouped into virtual clusters so that a particular cluster may service requests associated with a particular application or based on a type of customer (e.g., preferred or general customer) in order to grade levels of service. Also, a system resource monitor may provide continual monitoring of servers in virtual clusters to determine when one or more servers are overburdened or under burdened based on statistical performance data. As a servers performance changes, the system resource monitor may advise the intelligent network dispatcher causing a change in the rate of requests to the overburdened / under burdened server. The server may be temporarily removed from the virtual cluster until performance levels normalize. Further, servers may be re-assigned to other virtual clusters on demand to provide increased capacity to a virtual cluster.

A method, system, machine-readable storage medium, and apparatus are directed towards upgrading a cluster by bifurcating the cluster into two virtual clusters, an “old” virtual cluster (old active cluster) and a “new” virtual cluster (new standby cluster), and iteratively upgrading members of the old cluster while moving them into the new cluster. While members are added to the new cluster, existing connections and new connections are seamlessly processed by the old cluster. Optionally, state mirroring occurs between the old cluster and the new cluster once the number of members of the old and new clusters are approximately equal. Once a threshold number of members have been transferred to the new cluster, control and processing may be taken over by the new cluster. Transfer of control from the old cluster to the new cluster may be performed by failing over connectivity from the old cluster to the new cluster.

One embodiment of the present invention provides a switch system. The switch includes one or more ports on the switch configured to transmit packets encapsulated based on a first protocol. The switch further includes a traffic management mechanism and a control mechanism. During operation, the control mechanism forms a logical switch based on a second protocol, receives an automatically assigned identifier for the logical switch without requiring manual configuration of the identifier, and joins a virtual cluster switch.

The embodiment of the invention discloses a method, a device and a system for balancing loads of virtual cluster systems, wherein the method comprises the following steps: acquiring load information of a virtual machine in physical nodes in a virtual cluster system, wherein the load information comprises the CPU utilization rate of the virtual machine and the use magnitude of memory; obtaining first load information in a first moment according to the load information and adjusting the CPU utilization rate of the virtual machine in the physical nodes and the use magnitude of memory according to the first load information; and obtaining second load information in a second moment according to the load information and adjusting the migration of the virtual machine among the physical nodes in the virtual cluster system according to the second load information. Due to the embodiment of the invention, the load balance of the virtual cluster system can be realized, and the overhead needed for realizing the load balance is reduced.

A hybird Notes / DB2 environment provides a requisition catalog on the Web. Client browsers are connected to a GWA infrastructure including a first network dispatcher and a virtual cluster of Domino.Go servers. The network dispatcher sprays out browser requests among configured .nsf servers in virtual server cluster. Communications from this virtual server cluster are, in turn, dispatched by a second network dispatcher servers in a Domino cluster. External objects, primarily for a GUI, are served in a .dfs and include graphic files, Java files, HTML images and net.data macros. The catalog is built from supplier provided flat files. A front end is provided for business logic and validation, as also is a relation database backend. HTML forms are populated using relational database agents. A role table is used for controlling access both to Notes code and DB2 data. Large amounts of data is quickly transferred using an intermediate agent and window.

According to various aspects of the present invention, a technique is described for improving load balancing of traffic in a data network using source-side related information embedded into the destination IP address field of packets received at a load balancing device. One aspect of the present invention relates to assigning more than one virtual IP address to a server cluster in order to enable different clients to select a virtual cluster address which corresponds to each clients' respective rights and / or profiles, and to use the selected virtual cluster address to access a desired site or service. Another aspect of the present invention relates to a mechanism which allows for load balancing operations to be implemented using source-side information which is embedded into the destination IP address of a packet header. In this way, load balancing decisions may be quickly performed at initial or early stages of a connection flow.

The administrative work needed to configure a virtual cluster is a major obstacle that limits its adoption by customers. Moreover, an organization can spend much time and effort testing a cluster configuration and would like to deploy this cluster configuration at many sites. To address these problems, the disclosed embodiments provide a mechanism that facilitates migrating a virtual cluster from a first computer system to a second computer system. During operation, the system captures the virtual cluster configuration state, including application configuration state and executables. The system then instantiates this captured state on a second computer system, thus re-creating the virtual cluster state of the first computer system on the second computer system.

The invention discloses a hybrid cloud computing system based on a cloud bus and a realization method of the hybrid cloud computing system. The system is based on a local private cloud, one or more public clouds are integrated, the internal constitution of the local private cloud is consistent with that of the public cloud, both the internal constitution of the local private cloud and the internal constitution of the public cloud comprise an infrastructure, a virtualization layer, a cloud platform layer, a cloud bus layer, a cloud application layer, a management center and a storage center, wherein the hardware resources on a bottom layer are grouped into a virtual cluster through the infrastructure and the virtualization layer so as to provide different virtual resources to the superior layer; the cloud platform is used for operating a web application program or a service and utilizing an open interface to carry out the secondary development and application integration; and the cloud bus layer is used for managing and monitoring various services on the cloud platform layer and is a hub for connecting the cloud application layer and the cloud platform layer, and the cloud bus layer is established on the basis of SOA (service oriented architecture) concept and comprises a control bus, a plurality of node buses and an adapter. Due to the adoption of the hybrid cloud computing system, the migration of the existing IT (internet) environment of an enterprise to a cloud computing environment can be accelerated, the investment can be reduced, and the resource can be adequately utilized.

One embodiment of the present invention provides a switch. The switch includes a port to couple to a second switch. The switch also includes a control mechanism configured to maintain a set of configuration information for a virtual cluster switch which includes a number of member switches. The set of configuration information includes global configuration information for the virtual cluster switch and switch-specific configuration information for one or more member switches. In addition, the set of configuration information is replicated and stored at each member switch.

One embodiment of the present invention provides a switch system. The switch includes a port that couples to a server hosting a number of virtual machines. The switch also includes a link tracking module. During operation, the link tracking module determines that reachability to at least one end host coupled to a virtual cluster switch of which the switch is a member is disrupted. The link tracking module then determines that at least one virtual machine coupled to the port is affected by the disrupted reachability, and communicates to the server hosting the affected virtual machine about the disrupted reachability.

A hybrid Notes / DB2 environment provides a requisition catalog on the Web. Client browsers are connected to a GWA infrastructure including a first network dispatcher and a virtual cluster of Domino.Go servers. The network dispatcher sprays out browser requests among configured .nsf servers in virtual server cluster. Communications from this virtual server cluster are, in turn, dispatched by a second network dispatcher servers in a Domino cluster. External objects, primarily for a GUI, are served in a .dfs and include graphic files, Java files, HTML images and net.data macros. The catalog is built from supplier provided flat files. A front end is provided for business logic and validation, as also is a relation database backend. HTML forms are populated using relational database agents. A role table is used for controlling access both to Notes code and DB2 data. Large amounts of data are quickly transferred using an intermediate agent and window.

The present invention discloses a blockchain storage method and device and a node device. The method comprises the steps of adding in a virtual cluster by accepting a cluster establishing invitation or sending the cluster establishing invitation, wherein the virtual cluster comprises a preset number of nodes; according to a preset first block distribution rule, storing a or a plurality of blocks in a blockchain to enable the blocks stored in the nodes in the virtual cluster can form a complete blockchain. According to the present invention, by respectively storing the blocks in the blockchain in the nodes of the virtual cluster redundantly, the memory space of the nodes is reduced; each block is stored redundantly, the storage safety can be guaranteed; the block synchronization speed is improved, and the query efficiency is improved.

A method and system is provided intelligent network dispatchers that are capable of routing requests to one or more servers (e.g., LDAP servers) based on the requested application or the identity of the requester. The servers may be grouped into virtual clusters so that a particular cluster may service requests associated with a particular application or based on a type of customer (e.g., preferred or general customer) in order to grade levels of service. Also, a system resource monitor may provide continual monitoring of servers in virtual clusters to determine when one or more servers are overburdened or under burdened based on statistical performance data. As a servers performance changes, the system resource monitor may advise the intelligent network dispatcher causing a change in the rate of requests to the overburdened / under burdened server. The server may be temporarily removed from the virtual cluster until performance levels normalize. Further, servers may be re-assigned to other virtual clusters on demand to provide increased capacity to a virtual cluster.

The embodiment of the invention discloses a cluster node applied to virtual cluster management, which comprises a cluster node management module, a middleware interface, a virtual machine monitor set and a virtual machine, wherein the cluster node management module is used for a user-side call management command transmitted by a cluster management node and judges the type of the call management command; the middleware interface is used for providing an interface which corresponds to the call management command for the cluster node management module so as to call virtual machine monitors in the virtual machine monitor set when the call management command is the monitoring call management command of the virtual machine monitors; and the virtual machine monitor set is used for monitoring and managing the virtual machine which is in communication linkage with the virtual machine monitors. The embodiment of the invention also provides a virtual cluster management method. Various interfaces are provided for an upper level by the middleware interface so that the upper level does not need to modify and manage different types of virtual machine monitors, thereby improving the efficiency of virtual cluster management.

A method resolves connectivity of services inside a network virtualization system when a virtual cluster system supports unicast IP, L2VPN, and L3VPN services, so that the software network virtualization system can support various types of services efficiently and with high quality. The method includes: creating, on a control device, a virtualized remote logical interface for an external interface of a remote access node; identifying, by the control device according to a service configured on the virtualized remote logical interface, a service type of the service, and generating virtual link forwarding entries of the remote access node and a core aggregation node; and sending, by the control device, the virtual link forwarding entry to the remote access node and the core aggregation node, so as to set up a virtual link between the core aggregation node and the remote access node.

A shared-nothing virtual cluster including multiple virtual servers located on a corresponding number of physical servers linked together via a network. The virtual servers collectively form an active / passive (A / P) cluster including an active virtual server and at least one passive server. The shared-nothing virtual cluster further includes an interlink and multiple virtual drives located on the physical servers. The active virtual server handles a cluster load and executes a first operating system that operates the virtual drives in a data redundant configuration that collectively stores a data set for the cluster. Each passive virtual server, when activated, is coupled to a sufficient number of the virtual drives with redundant information to recover the data set for the cluster. The interlink is operatively configured to detect failure of the active server and to initiate promotion of a virtual server to active status to resume handling the cluster load after failover.

A processor of an aspect includes a plurality of logical processors each having one or more corresponding lower level caches. A shared higher level cache is shared by the plurality of logical processors. The shared higher level cache includes a distributed cache slice for each of the logical processors. The processor includes logic to direct an access that misses in one or more lower level caches of a corresponding logical processor to a subset of the distributed cache slices in a virtual cluster that corresponds to the logical processor. Other processors, methods, and systems are also disclosed.

An interface is provided between a virtual cluster proxy and a virtual I / O server on a logical partitioned platform. The virtual I / O server is configured to support virtual real memory. A command is received from a virtual cluster proxy. The virtual cluster proxy identifies whether the command is a virtual real memory command or a virtualization command. Virtual real memory commands and virtualization commands are marked by the virtual cluster proxy with a virtualization marker. The virtualization marker indicates that the command is a virtual real memory command or a virtualization command. The command is then forwarded to a logical partitioned platform. A virtual memory manager intercepts the command and identifies whether the command has been marked with the virtualization marker. If the command is marked with the virtualization marker, the virtual memory manager reroutes the command to the virtual I / O server.

A hybird Notes / DB2 environment provides a requisition catalog on the Web. Client browsers are connected to a GWA infrastructure including a first network dispatcher and a virtual cluster of Domino.Go servers. The network dispatcher sprays out browser requests among configured .nsf servers in virtual server cluster. Communications from this virtual server cluster are, in turn, dispatched by a second network dispatcher servers in a Domino cluster. External objects, primarily for a GUI, are served in a .dfs and include graphic files, Java files, HTML images and net.data macros. The catalog is built from supplier provided flat files. A front end is provided for business logic and validation, as also is a relation database backend. HTML forms are populated using relational database agents. A role table is used for controlling access both to Notes code and DB2 data. Large amounts of data is quickly transferred using an intermediate agent and window.

A virtual media (VM) method for mounting a folder stored in a storage device of a client for accessed by a server as a virtual drive. The client assigns virtual cluster indices to each file in the folder, and creates a file-cluster index table to store the assigned virtual cluster indices. The client also creates a VM file system complying with the FAT file system standard except that only subdirectories and no data files are stored in the VM FAT file system. The VM FAT table uses virtual cluster indices rather than actual cluster indices. Data written by the server are stored in a temporary data area without modifying the actual file system of the storage device. The virtual sectors requested to be written are “dirty”, and the dirty sector numbers and corresponding temporary sector numbers are stored in a dirty sector index table for use in a write-back step.

This invention relates to a method of flowing of wireless sensor networks Adaptive Channel Access control, being the same with multi-hop wireless sensor networks. When the network initializes, at first synchronization formed virtual cluster between nodes, each node adopting cyclical interception sleep mechanism to reduce the consumption of energy nodes as much as possible in the state. In the same virtual cluster, remained an interception sleep scheduling between the nodes, started interception at the same time. Sending and receiving data between nodes adopt RTS / CTS / DATA / ACK mechanism for reliable transmission, but also according to its own queue in the packet predict the number of network traffic changes, adaptive duty cycle adjust, reduce packet transmission time. At the same time, Interception is adopted adaptive mechanism to reduce wait delay because of node sleep. The invention of the method in different network traffic circumstances can be lower latency, power consumption and throughput performance has also been some improvement.

Provided are a system and method for dynamically expanding a virtual cluster having one or more virtual machines (VMs), based on the resource availability of the virtual cluster and the type of the virtual cluster. The system for dynamically expanding a virtual cluster having one or more virtual machines (VMs), the system comprising a monitor unit which measures resource availability of a target virtual cluster and provides the resource availability to an expansion control unit, the expansion control unit which determines whether to expand the target virtual cluster based on the resource availability and determines a type and number of VM instances to be additionally allocated to the target virtual cluster by reflecting the resource availability and a type of the target virtual cluster and a virtual cluster configuration unit which modifies profile information of the target virtual cluster such that the determined number of VM instances of the determined type by the expansion control unit can be additionally allocated to the target virtual cluster.

The invention relates to the technical field of cloud computing, in particular to a load balance system and a cloud computing oriented load balance mechanism. A load detection and state feedback mechanism between a virtual machine and a load balance server is established in a bidirectional communication manner, so that a state of the virtual machine can be timely fed back and processed; and load balance for application is realized by increasing or decreasing the number of application servers. Aiming at a virtual cluster with a front-end server and a plurality of application servers, the load balance system achieves the load balance effect on the application by increasing or decreasing the number of application servers; elastification of cloud computing application is realized; and the load balance system and the load balance mechanism can be applied to cloud computing load balance.

In a virtual private network, a plurality of concentrators form an interface to provide client / remote site access to a private network over a public network. The plurality of concentrators are grouped into a virtual cluster. Each concentrator in the virtual cluster has an IP address and the virtual cluster has a virtual IP address. In operation, one of the plurality of concentrators assumes the virtual IP address and acts as the master device in the cluster. When a client attempts a connection to the private network, the client addresses an initial request to the virtual IP address. The master device responds to the client request by transmitting to the client the IP address of a concentrator in the cluster selected to handle the connection.

In some embodiments, the invention involves a system and method relating to a framework to build a new class of network control (policy) and (state) management services. The framework may be used to build a number of self-management services to support decentralized (mesh) networks. In at least one embodiment, the present invention is intended to hybridize centralized and decentralized network models to generate a more stable and robust network environment using clustering. Other embodiments are described and claimed.