A peripheral card having a Personal Computer (“PC”) card form factor and removably coupled externally to a host system is further partitioned into a mother card portion and a daughter card portion. The daughter card is removably coupled to the mother card. In the preferred embodiment, a low cost flash “floppy” is accomplished with the daughter card containing only flash EEPROM chips and being controlled by a memory controller residing on the mother card. Other aspects of the invention includes a comprehensive controller on the mother card able to control a predefined set of peripherals on daughter cards connectable to the mother card; relocation of some host resident hardware to the mother card to allow for a minimal host system; a mother card that can accommodate multiple daughter cards; daughter cards that also operates directly with hosts having embedded controllers; daughter cards carrying encoded data and information for decoding it; and daughter cards with security features.

Removable Mother/Daughter Peripheral Card

A system for configuring a network adapter of a computer without user intervention. Device information for the devices of the computer, including each network adapter, is collected to uniquely identify the devices and to describe the device characteristics associated with the operation of those devices with the computer. Computer resources, which support the functions of the devices within the computer, are allocated based upon this device information. This allocation process prevents a potential conflicting use of computer resources by the installed devices. A device driver, which enables communications between a corresponding device and the computer, is also identified and loaded for each of the devices in response to the allocation of computer resources. In response to loading the driver for each network adapter, each network configuration routine or layer for a particular interface of the corresponding network adapter is identified. In response to the identification of these layers, each identified layer for the particular interface is loaded. In turn, layers are identified and loaded for each of the remaining interfaces of the corresponding network adapter.

Method for automatically configuring devices including a network adapter without manual intervention and without prior configuration information

A computer data signal embodied in a propagation medium is provided. The signal enables a variable number of data transfers and includes an initial connection source code segment and a data transfer source code segment. The initial connection source code segment establishes a connection between at least two devices via predetermined listening ports, with at least one predetermined listening port residing within each device. The initial connection source code segment also dynamically assigns a first data port within a first device, and transmits the address of the first data port to a remaining device via the predetermined listening ports. The data transfer source code segment is for each of the variable number of data transfer operations. The data transfer source code segment dynamically assigns a corresponding second data port within the remaining device and transfers data between the connected devices via the data ports so that the data is substantially simultaneously transferred between a variable number of devices via the data ports. Each pair of first and second data ports is established in response to each listening port connection.

File transfer system using dynamically assigned ports

A system for configuring devices of a computer system without user intervention. Device information for each of the devices is collected to uniquely identify the devices and to describe the device characteristics associated with the operation of devices with the computer. Computer resources, which support the functions of the devices within the computer, are allocated based upon the device information. This allocation process prevents a potential conflicting use of the resources by the devices. A device driver, which enables communications between the corresponding device and the computer system, is also identified for each of the devices in response to the device information. In response to the allocation of resources, the identified device drivers are loaded and the devices are activated for operation with the computer.

System for configuring devices for a computer system

Provided herein is a method and apparatus for host transparent storage controller failover and failback. A controller is capable of assuming the identity of a failed controller while continuing to respond to its own SCSI ID or IDs in such a way that all SCSI IDs and associated units (LUNS) of the failed controller are effectively taken over by the surviving controller. This "failover" behavior is transparent to any attached host computers and is treated by such attached hosts as a powerfail condition. The symmetric operation of returning the targets (IDs) and units (LUNs) to the previously failing controller ("failback") is likewise transparent.

Host transparent storage controller failover/failback of SCSI targets and associated units

A communication system including one or more host adapters connected to a host computer, each adapter having multiple serial communication ports for transferring data between the computer and several TTY devices. Several of the adapter's serial ports include a high speed serial link for communicating with a data concentrator. The adapter automatically detects the presence of a concentrator connected to a switchable port and switches to the high speed link. Each concentrator includes multiple serial ports for communicating with TTY devices, and a high speed serial link for communicating with the adapter's high speed link. The concentrators allow more than one TTY device to share a single adapter serial port. Data from all of the TTY devices is accumulated into an adapter data buffer during a configurable time period or until a certain amount of data is accumulated, at which time the adapter interrupts the computer and transfers the accumulated data to the computer in one transfer operation. Likewise, the computer accumulates data for the TTY devices and transfers this data to the adapter in one transfer operation. Communication between the adapters and concentrators through the high speed serial communication link is implemented using a small fixed-size addressed packet to achieve a low overhead, high performance communications protocol. Each high speed link between an adapter and a concentrator is implemented to provide inherent flow control of data. The concentrators include a fail safe global flow control mechanism to prevent overflow of data from the TTY devices.

Data transfer system between a computer and a host adapter using multiple arrays

Expandable communication system with data flow control

Expandable communication system with automatic data concentrator detection

A communication system including one or more host adapters connected to a host computer, each adapter having multiple serial communication ports for transferring data between the computer and several TTY devices Several of the adapter's serial ports include a high speed serial link for communicating with a data concentrator The adapter automatically detects the presence of a concentrator connected to a switchable port and switches to the high speed link Each concentrator includes multiple serial ports for communicating with TTY devices, and a high speed serial link for communicating with the adapter's high speed link The concentrators allow more than one TTY device to share a single adapter serial port Data from all of the TTY devices is accumulated into an adapter data buffer during a configurable time period or until a certain amount of data is accumulated, at which time the adapter interrupts the computer and transfers the accumulated data to the computer in one transfer operation Likewise, the computer accumulates data for the TTY devices and transfers this data to the adapter in one transfer operation Communication between the adapters and concentrators through the high speed serial communication link is implemented using a small fixed-size addressed packet to achieve a low overhead, high performance communications protocol Each high speed link between an adapter and a concentrator is implemented to provide inherent flow control of data The concentrators include a fail safe global flow control mechanism to prevent overflow of data from the TTY devices

Jon M. Meinecke

Papers

Data transfer system between a computer and a host adapter using multiple arrays

Expandable communication system with data flow control

Expandable communication system with automatic data concentrator detection

Data transfer system with variable data buffer size and programmable interrupt frequency

Expandable communication system using data concentration