BGman wrote:
Recently I found out that Sediv Toshiba miscalculates in some cases the position of SA and reads wrong tracks.
The following thread claims that there is a hidden area in the SA of Toshiba HDDs. Could this be somehow involved?
https://www.data-medics.com/forum/anyon ... t1410.htmlmikem wrote:
During imaging a drive, resets are important to get a drive out of a particular error state or to flush the drive's buffer memory, this can happen several tens of times an hour and so requires constant resetting. The breakthough we have made is we found a hidden module within the SA of the [Toshiba] drive and have located the exact bit of a byte that stores this flag. We found that changing the flag and saving back to the drive's firmware permanently disables the re-allocation meaning that drives will image normally without lots of intervention and restarting and allows all types of automatic reset and power cycling during imaging.
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This is not the translator issue. There is a terminal command that turns off bad sector reallocation, it is well known so I wont repost it here, however, when the drive soft or hard resets and on power cycle the reallocation flag is turned back on resulting with slow reads. What was discovered turns off reallocation permanently that survives soft, hard and power cycles. The flag is in a module that is not listed in the standard module list, and is hidden in SA HPA area.