Thanx jaclaz for such detailed information )
It sheds the light on a problem.
Thanx
I would call that a "collision". roll
jaclaz
No not really, as I said nearly all of the drives I have looked at recently (the last 4 or so years probably, possibly longer - I have not been keeping records ) ) have been the same size - I have had to clone quite a lot of drives for a long running job i have had on. I have not been able to source the same make and model as it was not practical
The two drives I mentioned were just two I grabbed yesterday (both three years or so old) at random just as a sanity check.
You certainly dont need EXACTLY the same make and model in my experience.
I have in my left hand a Samsung HD501LJ which is also 976,773,168 ) .
BUT wink in the "wastebin" I have a Maxtor 4D040H2 (D540X) 40 Gb with LBA 80,043,264
AND a Maxtor DiamondMaxPlus 8 40 Gb with LBA 80,293,248
AND a Deskstar IBM with LBA 80,418,240
As said it is probable that these "collisions" happen on "newish" high capacity disk drives.
jaclaz
Evidently manufacturers have converged on a convention for what constitutes an xGB drive a devious and misleading convention (given that 9776993168 sectors actually constitutes less than 466GB and not the 500GB advertised), but a convention nonetheless )
Evidently manufacturers have converged on a convention for what constitutes an xGB drive a devious and misleading convention (given that 9776993168 sectors actually constitutes less than 466GB and not the 500GB advertised), but a convention nonetheless )
Yep, the hd guys (and most "memory/media" related firms) use the GB (as opposed to GiB)
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9776993168x512=5,005,820,502,016 bytes
They have it "the other way" round as most "old-school" people have it, but unfortunately they are right, as this "wrong" IMHO terminology has been adopted by IEC.
I simply refuse (though as said it is correct) to use "Gibibyte", "Mebibyte" and so on.
I multiply by 1,024 and not by 1,000. wink
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jaclaz
I have in my left hand a Samsung HD501LJ which is also 976,773,168 ) .
BUT wink in the "wastebin" I have a Maxtor 4D040H2 (D540X) 40 Gb with LBA 80,043,264
AND a Maxtor DiamondMaxPlus 8 40 Gb with LBA 80,293,248
AND a Deskstar IBM with LBA 80,418,240As said it is probable that these "collisions" happen on "newish" high capacity disk drives.
jaclaz
I do like your signature - it seems (unless you want to go back a very long time - when was the last time you saw 40GB drives regularly) that practice trumps theory!!
When a collision happens most of the time, its not a collision anymore )
But now we have also a theory backing up the practice ) a converging tendency on same number of sectors by different manufacturers.
Another theory ?
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Can we apply a similar graph to actual lifetime of disk drives?
(please read "Gas Buffer Density" as "Magentic Density" wink
I see a great increase on number of quick failing HD's in the "bigger than 320 Gb" category (before two years of average service), even if I put aside the reknown Seagate 7200.11 hiccup. roll
jaclaz