Abstract: Various embodiments of the present invention that include arranging a first storage device and second storage device to store data in a mirrored configuration. Upon receiving a message indicating that the first storage device is in an error recovery mode, the host processor can convey a second request to read the data from the second storage device. The storage device is selected from a list comprising a hard disk drive and a solid state disk drive, and the hard disk drive comprises a disk head having a magnetoresistive (MR) element configured to read and write data to and from the storage media, and coupled to an analog/digital (A/D) converter, and wherein the error recovery operation is selected from a list comprising changing an automatic gain control of the A/D converter, positioning the disk head off-track in order to read the data, and adjusting a bias value of the MR element.

Abstract: Methods, apparatus and computer program products implement embodiments of the present invention that enable a controller of a storage device having storage media to perform one or more error recovery operations on the storage media, and to convey, while performing the one or more error recovery operations, a message indicating a status of the one or more error recovery operations to a host processor in communication with the storage device. Storage devices implementing embodiments of the present invention include hard disk drives and solid state disk drives.

Abstract: A system, method, and computer program product provide a process that includes storing data on first data storage devices, and a backup copy of the data on the first and/or on second ones of the data storage devices. A probability of a failure of each of at least some of the first and/or second data storage devices is determined, and at least one of the first and/or data storage devices that is determined to have a higher probability of failure than a threshold and/or a probability of failure of another of the data storage devices, is selected. A second backup copy of the data, stored on the selected data storage device(s), is also stored on third ones of the data storage devices. The first and/or second data storage devices determined to have the higher probability of failure are used for their designated purpose after the second backup copy is created.

Abstract: Methods, apparatus and computer program products implement embodiments of the present invention that include replacing, in one or more initial source code files, each reference to a first function configured to convey system messages with a respective reference to a second function configured to convey the system messages, thereby producing respective corresponding preprocessed source code files for the one or more initial source code files. The respective corresponding preprocessed source code files are then compiled, thereby creating an executable file. Based on an identified name and a text string, a computed destination is determined for the text string.

Abstract: Generally speaking embodiments that dynamically expand the amount of information displayed with search or query results are disclosed. Some embodiments comprise a method for viewing information of a search that includes presenting a number of search results in response to a search, enabling a user to select one or more of the search results for a period of time, and dynamically expanding an amount of information associated with the selected search result based upon the period of time. Further embodiments comprise apparatuses having a display and a selection sensor to sense when a user selects one of the results and measure a period of time that the user selects the result. These embodiments also include a result expander to expand the amount of information displayed for a selected result as the period of time increases.

Abstract: Various embodiments are provided that enable a controller of a storage device having storage media to perform one or more error recovery operations on the storage media, and to convey, while performing the one or more error recovery operations, a message indicating a status of the one or more error recovery operations to a host processor in communication with the storage device. Storage devices implementing embodiments of the present invention include hard disk drives and solid state disk drives comprising a disk head having a magnetoresistive (MR) element configured to read and write data to and from the storage media, and coupled to an analog/digital (A/D) converter, and the error recovery operations are selected from a list of changing an automatic gain control of the A/D converter, positioning the disk head off-track in order to read the data, and adjusting a bias value of the MR element.

Abstract: Methods, apparatus and computer program products implement embodiments of the present invention to identify, in a given kernel source code file for the operating system kernel, a given PRINTK function call having a corresponding message text, the given kernel source code file having a kernel source code file name, calculate a configuration checksum, to assign, add, and store the respective destination and a key comprising the configuration checksum, to load, receive, and identify the name of a given source code file, and to determine, based on the identified name and the text string, a computed destination for the system message by calculating, using the identified name and the text string, a message checksum, and identifying, in the configuration table, an entry having a key equal to the message checksum, and wherein the determined destination comprises the respective destination in the identified entry. in the identified entry.

Abstract: Methods, apparatus and computer program products implement embodiments of the present invention that include replacing, in one or more initial source code files, each reference to a first function configured to convey system messages with a respective reference to a second function configured to convey the system messages, thereby producing respective corresponding preprocessed source code files for the one or more initial source code files. The respective corresponding preprocessed source code files are then compiled, thereby creating an executable file. While executing the executable file, a call to the second function is received, wherein the call includes a text string. A name of one of the respective corresponding preprocessed source code files storing the call to the second function is identified, and based on the identified name and the text string, a computed destination is determined for the text string. Finally, the text string is conveyed to the computed destination.

Abstract: Methods, apparatus and computer program products implement embodiments of the present invention to, within a distributed computing environment, identify, in a given kernel source code file for the operating system kernel, a given PRINTK function call having a corresponding message text, the given kernel source code file having a kernel source code file name, calculate a configuration checksum, to assign, add, and store the respective destination and a key comprising the configuration checksum, to load, receive, and identify the name of a given source code file, and to determine, based on the identified name and the text string, a computed destination for the system message by calculating, using the identified name and the text string, a message checksum, and identifying, in the configuration table, an entry having a key equal to the message checksum, and wherein the determined destination comprises the respective destination in the identified entry.

Abstract: Methods, apparatus and computer program products implement embodiments of the present invention that include identifying, by a processor operating in a distributed computing environment, in a given kernel source code file for the operating system kernel, a given PRINTK function call having a corresponding message text, the given kernel source code file having a kernel source code file name; calculating, using the kernel source code file name and the corresponding message text, a configuration checksum; adding, storing, and loading a record entry in a configuration file; assigning a respective destination to the configuration checksum; receiving, by the processor, a request to generate a system message comprising a text string; identifying a name of a source code file storing a function call that conveyed the request; and determining, based on the identified name and the text string, a computed destination for the system message.

Abstract: Storage operation requests from any device of a computing environment can be numerous and frequent. In particular, if there is a high frequency initiation of storage operation requests to store, retrieve, or modify data, then targeted storage systems have to easily and quickly decide in which order to satisfy the storage operation requests, such as when two requests occur to retrieve identical data. Storage operation requests can be prioritized at the end device instead of any intermediary device or enabling a complex ordering algorithm. Moreover, the storage on a cloud model consists of similar storage services which serve consumers of different needs. Some applications/users can afford longer service time than other applications/users. Differentiation in required service time allows price differentiation. The solution will serve premium customers faster than it serves customers who paid less.

Abstract: Methods, apparatus and computer program products implement embodiments of the present invention that include receiving a request to generate a system message comprising a text string and identifying a name of a source code file storing a function call that conveyed the request. An example of the function call is the PRINTK function in Linux™ based systems. Based on the identified name and the text string, a computed destination is determined for the system message. In some embodiments, a path for a directory storing the source code file is identified, and the computed destination includes the path. In additional embodiments the destination is determined by calculating a message checksum and identifying, in a configuration table, an entry having a key equal to the message checksum, and wherein the destination is retrieved from the identified entry. Finally, the text string is conveyed to the computed destination.

Abstract: Methods, apparatus and computer program products implement embodiments of the present invention that include arranging a first storage device and a second storage device to store data in a mirrored configuration. Upon a host processor receiving, in response to a first request conveyed to read the data from the first storage device, a message indicating that the first storage device is in an error recovery mode, the host processor can convey a second request to read the data from the second storage device. Upon receiving the data from the second storage device, the host processor can cancel the first request. Storage devices implementing embodiments of the present invention include hard disk drives and solid state disk drives.

Abstract: In response to a warning that power may be interrupted, a non-volatile data storage sub-system of a host computer system re-orders machine readable instructions that the non-volatile data storage sub-system is going to perform. This re-ordering of instructions decreases the probability that important data will be lost. The re-ordering of instructions is performed according to rules.

Abstract: In a method for determining a primary storage device and a secondary storage device for copies of data, one or more processors determine metrics data for at least two storage devices in a computing environment. The one or more processors adjust the metrics data. The one or more processors determine an I/O throughput value based on the adjusted metrics data for each of the at least two storage devices. The one or more processors compare the determined I/O throughput values for each of the at least two storage devices. The one or more processors select a storage device of the at least two storage devices with the lowest determined I/O throughput as a primary storage device.

Abstract: An approach to providing diagnostics of data storage medium units may be performed automatically without interruption to system operations. Upon receipt of one or more error messages occurring on a first data storage medium unit, data content from the first data storage medium unit may be copied to a second data storage medium unit. A system may operate using the second data storage medium unit while the first data storage medium unit is diagnosed for possible disk failure.

Abstract: Methods, apparatus and computer program products implement embodiments of the present invention that include replacing, in one or more initial source code files, each reference to a first function configured to convey system messages with a respective reference to a second function configured to convey the system messages, thereby producing respective corresponding preprocessed source code files for the one or more initial source code files. The respective corresponding preprocessed source code files are then compiled, thereby creating an executable file. While executing the executable file, a call to the second function is received, wherein the call includes a text string. A name of one of the respective corresponding preprocessed source code files storing the call to the second function is identified, and based on the identified name and the text string, a computed destination is determined for the text string. Finally, the text string is conveyed to the computed destination.

Abstract: Methods, apparatus and computer program products implement embodiments of the present invention that include receiving a request to generate a system message comprising a text string and identifying a name of a source code file storing a function call that conveyed the request. An example of the function call is the PRINTK function in Linux™ based systems. Based on the identified name and the text string, a computed destination is determined for the system message. In some embodiments, a path for a directory storing the source code file is identified, and the computed destination includes the path. In additional embodiments the destination is determined by calculating a message checksum and identifying, in a configuration table, an entry having a key equal to the message checksum, and wherein the destination is retrieved from the identified entry. Finally, the text string is conveyed to the computed destination.

Abstract: A computer receives data from a storage device. The computer identifies a state value of the storage device and at least one maintenance task included in the received data. The computer generates a set of instructions for limiting the workload of a storage device executing maintenance tasks. According to the generated instructions, the computer limits the workload placed on the storage device.

Abstract: Methods, apparatus and computer program products implement embodiments of the present invention that enable a controller of a storage device having storage media to perform one or more error recovery operations on the storage media, and to convey, while performing the one or more error recovery operations, a message indicating a status of the one or more error recovery operations to a host processor in communication with the storage device. Storage devices implementing embodiments of the present invention include hard disk drives and solid state disk drives.