Abstract: A mechanism is provided for controlling a solid state disk. A failure detector detects a failure in the solid state disk. Responsive to failure detector detecting a failure, a status degrader sets a degraded status indicator for the solid state disk. Responsive to the degraded status indicator, a degraded status controller maintains the solid state disk in operation in a degraded operation mode.

Abstract: A mechanism is provided for controlling a solid state disk. A failure detector detects a failure in the solid state disk. Responsive to failure detector detecting a failure, a status degrader sets a degraded status indicator for the solid state disk. Responsive to the degraded status indicator, a degraded status controller maintains the solid state disk in operation in a degraded operation mode.

Abstract: Provided are a system, method and article of manufacture for validating an expected data output of an application under test. A first table comprising named columns populated with the expected data output and a second table comprising named columns associated with the expected data output of the named columns of the first table are retrieved. The named columns of the first table are compared with the named columns of the second table. An alert is generated in response to detecting a difference between a characteristic of a named column of the first table and a characteristic of a named column of the second table.

Abstract: A mechanism is provided for controlling a solid state disk. A failure detector detects a failure in the solid state disk. Responsive to failure detector detecting a failure, a status degrader sets a degraded status indicator for the solid state disk. Responsive to the degraded status indicator, a degraded status controller maintains the solid state disk in operation in a degraded operation mode.

Abstract: Provided are a method, system, and article of manufacture, wherein a request to write data to a storage medium is received. The data requested to be written to the storage medium is stored in a cache. A writing of the data is initiated to the storage medium. A periodic determination is made as to whether the stored data in the cache is the same as the data written to the storage medium.

Abstract: A method and system for saving and retrieving data includes saving data in data storage fields of a data storage device in a computer. A back-up data storage field is selected in the data storage device. A data changing operation including new data is initiated on specified data saved in a current data storage field. A copy of all the data stored in boundary data storage fields is copied and stored in the back-up data storage field before changing the current data to provide data retrieval if the data is unrecoverable in the current data storage field, when a loss of power to the data storage device occurs.

Abstract: A method of storing data blocks onto sectors of a storage device comprises determining a specific number n of blocks, where n is greater than 1, storing n blocks consecutively onto consecutive sectors, such that each block begins directly after the previous block ends, repositioning the storing at the beginning of the next sector, and storing a further n blocks consecutively onto consecutive sectors, such that each block begins directly after the previous block ends.

Abstract: An architecture for error log processing is provided. Each error log is given a defined priority and mapped to an error recovery procedure (ERP) to be run if the log is seen. The system has a plurality of software layers to process the errors. Each software layer processes the error independently. Errors are reported to a higher software stack when error recovery fails from the lower stack ERPs and recovery is non-transparent. If the system host identified for error processing fails, the control of the ERP is transferred during the failover process. Non-obvious failed component isolating ERPs are grouped to be run together to assist in isolating the failed component. Prioritization of the error systems may be based on a plurality of criteria. ERPs are assigned to run within a particular software stack.

Abstract: A method, apparatus and program storage device for protecting data write operations against write failures in a data storage device is provided. The data storage device includes a storage medium, a write cache including a copy of data written to the storage medium, and a controller configured for testing data write operations to the storage medium. The controller tests data write operations to the storage medium before the write cache is flushed to confirm that it is safe to flush the write cache. If the test fails, the data in the write cache can be recovered.

Abstract: A method and system for saving and retrieving data includes saving data in data storage fields of a data storage device in a computer. A back-up data storage field is selected in the data storage device. A data changing operation including new data is initiated on specified data saved in a current data storage field. A copy of all the data stored in boundary data storage fields is copied and stored in the back-up data storage field before changing the current data to provide data retrieval if the data is unrecoverable in the current data storage field, when a loss of power to the data storage device occurs.

Abstract: A method of storing data blocks onto sectors of a storage device comprises determining a specific number n of blocks, where n is greater than 1, storing n blocks consecutively onto consecutive sectors, such that each block begins directly after the previous block ends, repositioning the storing at the beginning of the next sector, and storing a further n blocks consecutively onto consecutive sectors, such that each block begins directly after the previous block ends.

Abstract: An architecture for error log processing is provided. Each error log is given a defined priority and mapped to an error recovery procedure (ERP) to be run if the log is seen. The system has a plurality of software layers to process the errors. Each software layer processes the error independently. Errors are reported to a higher software stack when error recovery fails from the lower stack ERPs and recovery is non-transparent. If the system host identified for error processing fails, the control of the ERP is transferred during the failover process. Non-obvious failed component isolating ERPs are grouped to be run together to assist in isolating the failed component. Prioritization of the error systems may be based on a plurality of criteria. ERPs are assigned to run within a particular software stack.

Abstract: A method and system for error recovery of a hardware device is provided. The method includes detecting a target hard error indication from the hardware device by comparing the hard error indication to signatures of hard error indications which indicate a temporary failing and modifying the reported error to a stalling indication. The hardware device is allowed to recover in a predefined time period or by issuing one or more resets, or both. A hard error indication usually instigates an external error recovery of the hardware device and the method temporarily stalls such external error recovery.

Abstract: Provided are a system, method and article of manufacture for validating an expected data output of an application under test. A first table comprising named columns populated with the expected data output and a second table comprising named columns associated with the expected data output of the named columns of the first table are retrieved. The named columns of the first table are compared with the named columns of the second table. An alert is generated in response to detecting a difference between a characteristic of a named column of the first table and a characteristic of a named column of the second table.

Abstract: Provided are a method, system, and article of manufacture, wherein a request to write data to a storage medium is received. The data requested to be written to the storage medium is stored in a cache. A writing of the data is initiated to the storage medium. A periodic determination is made as to whether the stored data in the cache is the same as the data written to the storage medium.