Patent application number | Description | Published |
20100268885 | SPECIFYING AN ACCESS HINT FOR PREFETCHING LIMITED USE DATA IN A CACHE HIERARCHY - A system and method for specifying an access hint for prefetching limited use data. A processing unit receives a data cache block touch (DCBT) instruction having an access hint indicating to the processing unit that a program executing on the data processing system may soon access a cache block addressed within the DCBT instruction. The access hint is contained in a code point stored in a subfield of the DCBT instruction. In response to detecting that the code point is set to a specific value, the data addressed in the DCBT instruction is prefetched into an entry in the lower level cache. The entry may then be updated as a least recently used entry of a plurality of entries in the lower level cache. In response to a new cache block being fetched to the cache, the prefetched cache block is cast out of the cache. | 10-21-2010 |
20110320643 | MEASUREMENT FACILITY FOR ADAPTER FUNCTIONS - A measurement facility is provided for capturing and presenting fine-grained usage information for adapter functions in an input/output subsystem. Adapter specific input/output traffic is tracked on a per function basis and the results are dynamically presented to the user. This information is useful for performance tuning, load balancing and usage based charging, as examples. | 12-29-2011 |
20110320670 | CONNECTED INPUT/OUTPUT HUB MANAGEMENT - A method for implementing connected input/output (I/O) hub configuration and management includes configuring a first I/O hub in wrap mode with a second I/O hub. The hubs are communicatively coupled via a wrap cable. The method further includes generating data traffic on a computing subsystem that includes the hubs. Generating traffic includes: converting, via the first hub, a request to implement a transaction into an I/O device-readable request packet and transmitting the request packet over the wrap cable; converting, via the second hub, the I/O device-readable (IODR) request packet into a system readable request and transmitting the request over a system bus; converting, via the second hub, the response to an IODR response packet, and transmitting the response packet over the wrap cable; and converting, via the first hub, the IODR response packet into a system readable response packet, and transmitting the response packet over the system bus. | 12-29-2011 |
20110320772 | CONTROLLING THE SELECTIVELY SETTING OF OPERATIONAL PARAMETERS FOR AN ADAPTER - An instruction is provided to establish various operational parameters for an adapter. These parameters include adapter interruption parameters, input/output address translation parameters, resetting error indications, setting measurement parameters, and setting an interception control, as examples. The instruction specifies a function information block, which is a program representation of a device table entry used by the adapter, to be used in certain situations in establishing the parameters. A store instruction is also provided that stores the current contents of the function information block. | 12-29-2011 |
20110320860 | MANAGING PROCESSING ASSOCIATED WITH HARDWARE EVENTS - Detection, notification and/or processing of events, such as errors associated with adapters, are facilitated. Hardware detects an event, places one or more adapters in an error state to prevent access to/from the adapters, and notifies the operating system of the event. | 12-29-2011 |
20110320861 | SWITCH FAILOVER CONTROL IN A MULTIPROCESSOR COMPUTER SYSTEM - A system and a method for failover control comprising: maintaining a primary device table entry (DTE) in a first table activated for a first adapter in communication with a first processor node having a first root complex via a first switch assembly and maintaining a secondary DTE in standby for a second adapter in communication with a second processor node having a second root complex via a second switch assembly; maintaining a primary DTE in a second table activated for the second adapter and maintaining a secondary DTE in standby for the first adapter; and upon a failover, updating the secondary DTE in the first table as an active entry for the second adapter and forming a path to enable traffic to route from the second adapter through the second switch assembly over to the first switch assembly and up to the first root complex of the first processor node. | 12-29-2011 |
20120047343 | USE OF TEST PROTECTION INSTRUCTION IN COMPUTING ENVIRONMENTS THAT SUPPORT PAGEABLE GUESTS - Management of storage used by pageable guests of a computing environment is facilitated. A query instruction is provided that details information regarding the storage location indicated in the query. It specifies whether the storage location, if protected, is protected by host-level protection or guest-level protection. | 02-23-2012 |
20120216022 | CONTROLLING THE SELECTIVELY SETTING OF OPERATIONAL PARAMETERS FOR AN ADAPTER - An instruction is provided to establish various operational parameters for an adapter. These parameters include adapter interruption parameters, input/output address translation parameters, resetting error indications, setting measurement parameters, and setting an interception control, as examples. The instruction specifies a function information block, which is a program representation of a device table entry used by the adapter, to be used in certain situations in establishing the parameters. A store instruction is also provided that stores the current contents of the function information block. | 08-23-2012 |
20120308011 | INTEGRATED KEY SERVER - A computer program product for integrated key serving is provided. The computer program product includes a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method. The method includes using a smart card of two or more smart cards with a support element of two or more support elements to create an encryption key and storing the encryption key in an encrypted file that can only be decrypted by the smart card and the support element used to create the encryption key. | 12-06-2012 |
20120317375 | STORE STORAGE CLASS MEMORY INFORMATION COMMAND - An abstraction for storage class memory is provided that hides the details of the implementation of storage class memory from a program, and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory. | 12-13-2012 |
20120317386 | CLEARING BLOCKS OF STORAGE CLASS MEMORY - An abstraction for storage class memory is provided that hides the details of the implementation of storage class memory from a program, and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory. | 12-13-2012 |
20120317388 | CONFIGURE STORAGE CLASS MEMORY COMMAND - An abstraction for storage class memory is provided that hides the details of the implementation of storage class memory from a program, and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory. | 12-13-2012 |
20120317390 | FIRMWARE MANAGEMENT OF STORAGE CLASS MEMORY - A computer program product is provided and includes a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for detecting connections of two or more input/output (I/O) adapters, each of the two or more I/O adapters having one or more solid state devices (SSDs) connected thereto, and presenting a storage class memory address space for all of the connected SSDs that is independent of connections and disconnections between each of the one or more SSDs and each of the two or more I/O adapters and the processing unit. | 12-13-2012 |
20120317391 | RELEASING BLOCKS OF STORAGE CLASS MEMORY - An abstraction for storage class memory is provided that hides the details of the implementation of storage class memory from a program, and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory. | 12-13-2012 |
20120317392 | CHAINING MOVE SPECIFICATION BLOCKS - An abstraction for storage class memory is provided that hides the details of the implementation of storage class memory from a program, and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory. | 12-13-2012 |
20120317393 | DATA RETURNED RESPONSIVE TO EXECUTING A START SUBCHANNEL INSTRUCTION - An abstraction for storage class memory is provided that hides the details of the implementation of storage class memory from a program, and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory. | 12-13-2012 |
20120317445 | DECONFIGURE STORAGE CLASS MEMORY COMMAND - An abstraction for storage class memory is provided that hides the details of the implementation of storage class memory from a program, and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory. | 12-13-2012 |
20130042062 | FIRMWARE MANAGEMENT OF STORAGE CLASS MEMORY - A computer program product is provided and includes a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method. The method includes detecting connections of two or more input/output (I/O) adapters, each of the two or more I/O adapters having one or more solid state devices (SSDs) connected thereto, and presenting a storage class memory address space for all of the connected SSDs that is independent of connections and disconnections between each of the one or more SSDs and each of the two or more I/O adapters and the processing unit. | 02-14-2013 |
20130103916 | CLEARING BLOCKS OF STORAGE CLASS MEMORY - An abstraction for storage class memory is provided that hides the details of the implementation of storage class memory from a program, and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory. | 04-25-2013 |
20130111155 | RELEASING BLOCKS OF STORAGE CLASS MEMORY | 05-02-2013 |
20130111162 | STORE STORAGE CLASS MEMORY INFORMATION COMMAND | 05-02-2013 |
20130111178 | DECONFIGURE STORAGE CLASS MEMORY COMMAND | 05-02-2013 |
20130111179 | CONFIGURE STORAGE CLASS MEMORY COMMAND | 05-02-2013 |
20130111185 | CHAINING MOVE SPECIFICATION BLOCKS | 05-02-2013 |
20130117642 | DATA RETURNED RESPONSIVE TO EXECUTING A START SUBCHANNEL INSTRUCTION - An abstraction for storage class memory is provided that hides the details of the implementation of storage class memory from a program, and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory. | 05-09-2013 |
20130138907 | USE OF TEST PROTECTION INSTRUCTION IN COMPUTING ENVIRONMENTS THAT SUPPORT PAGEABLE GUESTS - Management of storage used by pageable guests of a computing environment is facilitated. A query instruction is provided that details information regarding the storage location indicated in the query. It specifies whether the storage location, if protected, is protected by host-level protection or guest-level protection. | 05-30-2013 |
20130339784 | ERROR RECOVERY IN REDUNDANT STORAGE SYSTEMS - Embodiments relate to providing error recovery in a storage system that utilizes data redundancy. An aspect of the invention includes monitoring plurality of storage devices of the storage system and determining that one of the plurality of storage devices has failed based on the monitoring. Another aspect of includes suspending data reads and writes to the failed storage device and determining that the failed storage device is recoverable. Based on determining that the failed storage device is recoverable, initiating a rebuilding recovery process of the failed storage device based on determining that the failed storage device is recoverable and restoring data reads and writes to the failed storage device upon completion of the rebuilding recovery process. | 12-19-2013 |
20140101400 | STORE PERIPHERAL COMPONENT INTERCONNECT (PCI) FUNCTION CONTROLS INSTRUCTION - An instruction is provided that includes an opcode field to identify a store instruction to store in a designated location current values of operational parameters of an adapter function of an adapter; a first field to identify a location, the contents of which include a function handle identifying a handle of the adapter function for which the store instruction is being performed, and an indication of an address space associated with the adapter function identified by the function handle to which the store instruction applies; and a second field to identify the designated location of where a result of the store instruction is to be stored. Execution of the instruction includes obtaining information from a function information block associated with the adapter function; and copying the information from the function information block into the designated location, based on completion of one or more validity checks with one or more predefined results. | 04-10-2014 |
20140143449 | CONFIGURE STORAGE CLASS MEMORY COMMAND - An abstraction for storage class memory is provided that hides the details of the implementation of storage class memory from a program, and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory. | 05-22-2014 |
20140149705 | USE OF TEST PROTECTION INSTRUCTION IN COMPUTING ENVIRONMENTS THAT SUPPORT PAGEABLE GUESTS - Management of storage used by pageable guests of a computing environment is facilitated. A query instruction is provided that details information regarding the storage location indicated in the query. It specifies whether the storage location, if protected, is protected by host-level protection or guest-level protection. | 05-29-2014 |