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HDClone will optimally try to troubleshoot sector errors as they occur. If this is not possible, these occurrences will be counted in a respective error statistic.
In the event of read errors, HDClone deploys various strategies in order to recover the affected sectors. The time used for this depends on the type and size of media used. For each sector, seconds to minutes may be required for the recovery attempts. Therefore, it is recommended to always activate the option SafeRescue, as handling of defective sectors will occur only after the copying of all intact areas has been completed. The process can then be cancelled without losing the data of the intact areas should the process take up too much time.
Read errors can only occur on the source media during the copying process. HDClone will then attempt to read the defective areas immediately following termination of the copying process (option SafeRescue) in a separate troubleshooting run. During the error recovery process, the number of indicated read errors can decrease in accordance with the recoverable areas on the source.
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Write errors can only occur during the copying process and only on the target media. HDClone will then try to read the defective areas immediately following termination of the copying process (with the option SafeRescue) using special data recovery strategies in a separate troubleshooting run. During the error recovery process, the number of the indicated write errors can decrease in accordance with the recoverable areas on the target.
When the Verifying option is activated, HDClone will execute a troubleshooting run after the copying process. A verification error is counted when data of two sectors on source and the target do not correspond. Furthermore, read errors that occur during the verification run in one or both of the areas to be compared are also counted as verification errors. The number of verification errors provides information on how exactly the source and the target correspond to one another after cloning.
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