Abstract: Systems and methods are disclosed for categorizing error types encountered in data access operations based on bit information from a data segment. An example apparatus includes a circuit configured to perform error recovery for one or more data segments including determining an error recovery operation of a plurality of error recovery operations to perform based on bit information of the one or more data segments. The example circuit also performs the determined error recovery operation.

Abstract: Systems and methods are disclosed for categorizing error types encountered in data access operations based on bit information from a data segment. An example apparatus includes a circuit configured to perform error recovery for one or more data segments including determining an error recovery operation of a plurality of error recovery operations to perform based on bit information of the one or more data segments. The example circuit also performs the determined error recovery operation.

Abstract: Implementations disclosed herein provide a method comprising iteratively reading data from a failing media sector prior to a an error minimization operation, analyzing read data at each iteration using an error minimization operation to determine sections of read data as good data, storing the good data in a buffer during each iteration, and using the good data as input for the read data during a subsequent error retry operation. In another implementation, the method further comprises comparing new read data with stored good data in the buffer, and replacing the stored good data with the new read data if the new read data has a higher quality than the stored good data.

Abstract: Implementations disclosed herein provide a method comprising applying voltage to a read head during an unload state, detecting characteristic read head data, and storing the detected characteristic read head data in a buffer. In another implementation, the method further comprises performing a read retry operation in response to a read failure, reading the detected characteristic read head data from the buffer, determining if the detected characteristic read head data meets a threshold for a first predetermined criterion, performing a correction operation if the threshold for the first the first predetermined criterion is met, determining whether a media sector is read successfully, and ending the read retry operation if the media sector is read successfully.

Abstract: The disclosure is related to systems and methods of On the Fly Formatting. Various parameters that influence areal density of hard disc regions can be changed on the fly based on storage capacity and reliability needs. Further adjustments can be made to the formatting of the region to fine tune achievable storage capacity and reliability values. In some cases, the formatting can include error correction code strength, gap widths between user data sectors and servo data sectors, other characteristics or parameters, or any combinations thereof.

Abstract: Implementations disclosed herein provide a method comprising applying voltage to a read head during an unload state, detecting characteristic read head data, and storing the detected characteristic read head data in a buffer. In another implementation, the method further comprises performing a read retry operation in response to a read failure, reading the detected characteristic read head data from the buffer, determining if the detected characteristic read head data meets a threshold for a first predetermined criterion, performing a correction operation if the threshold for the first the first predetermined criterion is met, determining whether a media sector is read successfully, and ending the read retry operation if the media sector is read successfully.

Abstract: Implementations disclosed herein provide a method comprising applying voltage to a read head during an unload state, detecting characteristic read head data, and storing the detected characteristic read head data in a buffer. In another implementation, the method further comprises performing a read retry operation in response to a read failure, reading the detected characteristic read head data from the buffer, determining if the detected characteristic read head data meets a threshold for a first predetermined criterion, performing a correction operation if the threshold for the first the first predetermined criterion is met, determining whether a media sector is read successfully, and ending the read retry operation if the media sector is read successfully.

Abstract: The disclosure is related to systems and methods of On the Fly Formatting. Various parameters that influence aerial density of hard disc regions can be changed on the fly based on storage capacity and reliability needs. Further adjustments can be made to the formatting of the region to fine tune achievable storage capacity and reliability values. In some cases, the formatting can include error correction code strength, gap widths between user data sectors and servo data sectors, other characteristics or parameters, or any combinations thereof.