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Hard drive acces methods - Is possible to read less than 512

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Archive_-=pc3krules=-

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Posted: April 24th, 2004, 10:48

Joined: April 2nd, 2004, 0:00
Posts: 16
Location: Brazil

Hi everyone (again)

A quick question about hdd access methods for you brainers: :cool:

When mhdd or pc3k detects a bad sector, they detect an lba sector, correct? If so, this means that all 512 bytes in that sector become marked as bad.

Is there a way to read just the good bytes inside the 512 sector and discard the bad ones? Or hdd access protocol (ata) does not allow reading/writing of less than 512 bytes?

Thanks to all

Regards,

-=pc3krules=-

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Archive_Me!

Post subject:

Posted: April 25th, 2004, 15:54

Joined: April 12th, 2004, 22:45
Posts: 13
Location: mexico

I am a noobie so don't put too much stock in what i say now!

From my research, the whole sector is bad, unless you were grouping sectors together like some old and hush hush OS's, say 1024 or 2048 sectors, then i think it would work.

My research can conflict each other, at times. I read that the sector is dead forever, and other reading say it is a data issue and once the data is cleared it is ok, then why the read errors?

Well i have typed enough, i will crawl back into my little hole.

ME!

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