Abstract: A method for controlling the different power states of a ClientBlade™ from a remote desktop environment is described. The remote user's (device) connects his computer device (laptop or desktop) to the ClientBlade™ (at the Blade Center) via a Remote Desktop Protocol (RDP), which performs minimal video compression and provides an Ethernet connection back to the Blade Center. The user inputs a pre-defined key sequence, which initiates a power state interface (or input screen). The power state interface allows the user to select one of several power states. Once the power state is selected, a TCP/IP packet is generated and transmitted from the computer device to the ClientBlade™. The packet invokes the selected power state at the ClientBlade™. Once the power state is activated, a completion message verifying the power state change is sent back to the end user's computer device.

Abstract: An improved solution for limiting the transmission rate of data over a network is provided according to an aspect of the invention. In particular, the transmission rate for a port is limited by rate limiting one of a plurality of queues (e.g., class/quality of service queues) for the port, and directing all data (e.g., packets) for transmission through the port to the single rate limited queue. In this manner, the transmission rate for the port can be effectively limited to accommodate, for example, a lower transmission rate for a port on a destination node.

Abstract: A method and a computer program product for detecting link status in a blade system are provided. The method and computer program product provide for generating a first pattern of characters at a server blade of the blade system, transmitting the first pattern of characters from the server blade to an Ethernet switch of the blade system, and comparing a second pattern of characters to the first pattern of characters to determine whether a link from the Ethernet switch to a network is active in response to the server blade receiving the second pattern of characters from the Ethernet switch.

Abstract: The present invention facilitates the management of blade server information handling systems by providing a non-disruptive indication signal for power management to a Management Module or similar. By providing said functionality and method, the power available to power the management module at a particular instance, in relationship to the power state of the chassis may be determined, such that power may be configured in a non-disruptive manner for the management module. Said functionality and method also provides for both the safe and efficient powering of a server from cold start or the hot-plugging of a management module into an active, powered chassis.

Abstract: The present invention facilitates the management of blade server information handling systems by providing a non-disruptive indication signal for power management to a Management Module or similar. By providing said functionality and method, the power available to power the management module at a particular instance, in relationship to the power state of the chassis may be determined, such that power may be configured in a non-disruptive manner for the management module. Said functionality and method also provides for both the safe and efficient powering of a server from cold start or the hot-plugging of a management module into an active, powered chassis.

Abstract: The present invention provides a method and system for providing a reset after an operating system (OS) hang condition in a computer system, the computer system including an interrupt handler not accessible by the OS. The method includes determining if an interrupt has been generated by a watchdog timer; monitoring for an OS hang condition by the interrupt handler if the interrupt has been generated and after it is known that the OS is operating; and resetting the OS if a device driver within the OS has not set a bit in a register, the bit for indicating that the OS is operating. The method and system in accordance with the present invention uses existing hardware and software within a computer system to reset the OS. The present invention uses a method by which a critical hardware watchdog periodically wakes a critical interrupt handler of the computer system.

Abstract: The connection capability of a communication controller is extended. The communication controller includes a central control unit CCU, running a network control program NCP stored in a memory having a direct memory access facility through a DMA bus. The input/output bus of the communication controller and DMA bus are connected to line adapters, and channel adapters and a controller extension through a coupler which allows additional adapters to be connected to the controller. At initialization, a table is built into a coupler memory, which is then used in steady state mode for controlling the transmission of the messages to the additional users and the reception of the messages from the additional users, by improving the buffer unchaining and chaining processes into the NCP memory.