Intel Corporation

Paul E Luse

Wolfgang Michel

John A Dickinson

Clay Gerrard

Samuel N Merritt

Mark L Brown

Ralph Gundacker

Steven C Dake

Reinhardt Michel

Mark Brown

Methods and apparatus to dynamically assign and relocate object fragments in distributed storage systems are disclosed. In some examples, an apparatus to compile fragments of an object includes a fragment compiler to: compile an object from fragments stored in storage nodes, respective ones of the fragments corresponding to (a) a node index of storage identifiers representative of the storage nodes and (b) a fragment index of fragment identifiers associated with the respective ones of the fragments of the object, respective ones of the fragment identifiers being representative of a sequential order of the fragments of the object, the respective ones of the fragment identifiers to be associated with the respective ones of the storage identifiers to enable verification of storage locations of the respective ones of the fragments of the object relative to respective storage nodes; request a first one of the fragments from a first one of the respective storage nodes; determine if a first fragment index assigned to the first one of the fragments matches a first node index assigned to the first one of the fragments; when the first fragment index matches the first node index, compile the first one of the fragments into the object based on the first node index; and when the first fragment index does not match the first node index, compile the first one of the fragments into the object based on the first fragment index.

Methods and apparatus to assign indices and relocate object fragments in distributed storage systems

Methods and apparatus to dynamically assign and relocate object fragments in distributed storage systems are disclosed. In some examples, the methods and apparatus encode an object with error correction coding to separate the object into fragments, create a first index indicative of storage nodes where the fragments of the object are to be stored, encode a second index into identifiers of the fragments of the object, the second index based on the first index, and store the fragments of the object and the corresponding second index encoded identifiers in the storage nodes based on the first index.

An interface to one or more hardware devices includes a configuration library and objects to model the hardware. Software programs using the interface need not understand how to communicate with the hardware. Instead, the software programs may communicate with the interface. In turn, the interface communicates with the hardware. The software may be written when the hardware implementation features are unknown.

Using software objects to communicate with hardware devices

In one embodiment of the present invention, a process that uses a first processor is provided. The process includes the operation of blocking by the first processor of completion by a second processor of a configuration cycle. The process also includes the operation of selecting by the first processor of one procedure from a plurality of procedures that are associated with respective types of circuitry that may be used to permit the first processor to control a device. The one procedure is associated with one of the respective types of circuitry that is actually available to be used by the first processor.

Identifying and controlling different types of MROMB hardware

In one embodiment, a method is provided. The method of this embodiment may include detecting an operation initiated by a first device that can result in a change of a first set of resources previously allocated to a second device. If the operation has completed at least a certain phase of the operation and the first set of resources has changed as a result of the operation, the method of this embodiment may also comprise changing, by the second device, a second set of resources previously allocated by the second device to a third device. Of course, many modifications, variations, and alternatives are possible without departing from this embodiment.

Device resource allocation

In one embodiment, a method is provided. The method of this embodiment may include controlling, at least in part, by a first device, whether a first signal line of a second device is coupled to a bus, and whether a second signal line of a third device is coupled to the bus. The method of this embodiment may also include, after the first and second signal lines are coupled to the bus, supplying from the first device to the second and third devices, via the first and second signal lines, one or more signals that, after being received by the second and third devices, may permit, at least in part, at least one of control and configuration by the first device of the second and third devices. Of course, many modifications, variations, and alternatives are possible without departing from this embodiment.

Device control and configuration

Data processing system preventing configuration cycles to permit control procedure selection for access to attached devices

According to one embodiment of the present invention, an apparatus is provided which includes a first address translation unit and a second address translation unit. The first address translation unit is programmed for a minimum amount of memory addresses required to accept control transactions on a first bus. The second address translation unit is programmed to a memory address range that corresponds to an amount of local memory for caching operations between the first I/O processor and a first I/O interconnect device and an amount of memory space required by the I/O interconnect device. The apparatus includes logic to determine, upon receiving an incoming host request, whether a reply address corresponding to the host request overlaps with the memory address range programmed for the second address translation unit. The apparatus further includes logic to dynamically alter a data flow between the first I/O interconnect device and the host.

Growing community of inventors

Chandler, AZ, United States of America

Paul E Luse