Samsung F1 (1TB) HDDScan: >700 green blocks. do I return it?

[hddgorilla]

Now I am trying HDDScan>Erase.
But it doesn't work. It only reads bad sectors, one after another, very slowly.

[rchadwick]

Have you tried?

http://hddguru.com/content/en/software/ ... tore-Tool/

[hddgorilla]

Have you tried?

http://hddguru.com/content/en/software/ ... tore-Tool/

No, but I am looking at MHDD, which has a lot of functions, one of them is to restore the factory size.

I don't know why the size was reduced to 31MB after that secure erase.

First I want to learn the basics of MHDD, because I don't know what sequence of steps to follow.
Even if I restore the size, I don't know if the sectors will be good again.

[hddgorilla]

I wonder if those attempted scans I have done afterwards could have triggered reallocations (because of those Bad sectors-that probably are not Bad after all)...

This MHDD looks very good. ..

[hddgorilla]

Trying MHDD:
NHPA (return factory size) doesn't work: "Fail. Try to repower HDD".

[hddgorilla]

Have you tried?

http://hddguru.com/content/en/software/ ... tore-Tool/

HDD Capacity Restore Tool

I have tried this, and it worked, apparently.
The capacity is restored, and HDDScan is scanning again!! whoooo

Last edited by hddgorilla on August 27th, 2008, 23:23, edited 1 time in total.

[hddgorilla]

it seems that there are less "greens" than before the accident... too soon to tell......scanning...
the night is young

[hddgorilla]

YESSSSS!!
At the 10% mark, greens are just 9, down from 51 before the accident!!

[hddgorilla]

scanned 15%:
only 19 green blocks (before 112)

[hddgorilla]

at 20%:
39 green blocks (before 179)

so, approximately now I have 1/4 of what I had before.

The transfer rate curve is noticeably smoother.

[hddgorilla]

25%: 57 vs 227
30% 60 vs 269
35% 72 vs 324
40% 76 vs 355
45% 80 vs 389
50% 85 vs 414
54% 94 vs 471
58% 99 vs 500
62% 105 vs 527

[BlackST]

The more you poke with parameters, scan and 'reallocation' (?) the more probably you'll ruin the drive... Good luck. I give up.

[hddgorilla]

66% 107 vs 540
70% 107 vs 548
75% 113 vs 554
78% 116 vs 570
80% 116 vs 582
85% 116 vs 592
88% 120 vs 603
91% 122 vs 632
94% 125 vs 665
97% 128 vs 717
100% 128 vs 717


not bad!

[hddgorilla]

The more you poke with parameters, scan and 'reallocation' (?) the more probably you'll ruin the drive... Good luck. I give up.

The HDDScan has been greatly improved after the Secure Erasing.
But I don't know if the drive structure is correct right now. I will have to do more testings... I did a MBR erase with the Samsung utility. Don't know if this is bad or not.

[hddgorilla]

Before and after Secure Erase:

[hddgorilla]

I have also posted about this whole topic, here:

http://forums.storagereview.net/index.p ... 27117&st=0

you might find some interesting additional info.

p.d: I am going to sleep now.

[thatdellguy]

The fact that your still using Windows to scan a drive tells me plenty...

[hddgorilla]

The fact that your still using Windows to scan a drive tells me plenty...

I will scan today with MHDD.
I have used HDDScan first in order to compare with my previous results.

[hddgorilla]

Now scanning with MHDD in DOS.
10 greens at 10%,
Basically, same results as HDDScan in Windows

[hddgorilla]

35 greens at 20%.
Results are pretty similar.