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 Post subject: MAXTOR - Anyone seen this before ?
PostPosted: November 13th, 2004, 14:59 
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Joined: May 5th, 2004, 1:59
Posts: 193
Today worked on 2 Ares.
Both were (BAD!) - - - for plist, glist and dmcs
and copies all bad - fixed this, but...

One drive recovered files and then...

2nd drive, data seems OK to about sector 4.8M
thereafter all sectors filled with identical 512 sector to
end of drive !

In drive write enable I was able to record and
read data correctly to/from some test sectors.

Any ideas. ?


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 Post subject: Re: MAXTOR - Anyone seen this before ?
PostPosted: November 13th, 2004, 17:35 
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Joined: May 5th, 2004, 20:06
Posts: 2782
Location: England
fujimax wrote:
Today worked on 2 Ares.
Both were (BAD!) - - - for plist, glist and dmcs
and copies all bad - fixed this, but...

One drive recovered files and then...

2nd drive, data seems OK to about sector 4.8M
thereafter all sectors filled with identical 512 sector to
end of drive !

In drive write enable I was able to record and
read data correctly to/from some test sectors.

Any ideas. ?



Strange........... Only think maybe translator is slightly corrupted.... other than that I would need to see it :horse:


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 Post subject: Re: MAXTOR - Anyone seen this before ?
PostPosted: November 14th, 2004, 15:34 
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Joined: May 5th, 2004, 1:59
Posts: 193
guru wrote:

Strange........... Only think maybe translator is slightly corrupted.... other than that I would need to see it :horse:


Even with translator possible corruption, I cannot see that
a sector can output anything other than what is in the sector.

On further checking there are some, quite a few identical blocks
within the first 4.8m - something is writing to the disc - must be
the bastard - because i use his utility a lot :thankyou:


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 Post subject: hdd
PostPosted: November 14th, 2004, 19:56 
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Joined: November 14th, 2004, 19:50
Posts: 39
Location: Belgrade
Your drive may had some modules bad,also chek your drive for paswords!
Nikola


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 Post subject: Re: MAXTOR - Anyone seen this before ?
PostPosted: November 14th, 2004, 21:47 
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Joined: May 5th, 2004, 20:06
Posts: 2782
Location: England
fujimax wrote:
guru wrote:

Strange........... Only think maybe translator is slightly corrupted.... other than that I would need to see it :horse:


Even with translator possible corruption, I cannot see that
a sector can output anything other than what is in the sector.

On further checking there are some, quite a few identical blocks
within the first 4.8m - something is writing to the disc - must be
the bastard - because i use his utility a lot :thankyou:


Imagine if the translator is corrupted, PHY LBA 100000-200000 could be TRANSLATED into the same Logical LBA. Or grown defect table has skipped many sectors and all you find is duff sectors after re-map. Maybe delete the Glist? Of course keep an original copy of modules etc


:croco:


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 Post subject: Re: MAXTOR - Anyone seen this before ?
PostPosted: November 15th, 2004, 0:46 
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Joined: October 3rd, 2005, 0:40
Posts: 4335
Location: Hungary
fujimax wrote:
Today worked on 2 Ares.
Both were (BAD!) - - - for plist, glist and dmcs
and copies all bad - fixed this, but...

One drive recovered files and then...

2nd drive, data seems OK to about sector 4.8M
thereafter all sectors filled with identical 512 sector to
end of drive !

In drive write enable I was able to record and
read data correctly to/from some test sectors.

Any ideas. ?


Hello,
Do theese idenical sectors begin with "VELT_G00"?
I found that this pattern is written to sectors that have been skipped by P or G-list, I don't know which one, but I suppose P-list. There is also a firmware module that begins with the same string.

Does anybody have more info about "VELT_G00"?

haveaniceday!
pepe


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 Post subject: Re: MAXTOR - Anyone seen this before ?
PostPosted: November 15th, 2004, 4:38 
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Joined: May 5th, 2004, 1:59
Posts: 193
pepe wrote:
Do theese idenical sectors begin with "VELT_G00"?pepe


The sectors begin with :

17 26 4B 37 7A E9 26 35


Hi guru, yes, I have original modules and screen print
of P-list before anything was done.


Here is what I did,

filled in clear g-list
created new DMCS from #78 and first 2F bytes from identical drive
copied another's p-list and did trans regen.

btw - I am certain that some time last year I got exactly the same
sectors with another drive. That time these sectors occurred from
about 2M to exactly middle point of drive.

Later today I will compare current mods with original and write
back originals.


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 Post subject: Re: MAXTOR - Anyone seen this before ?
PostPosted: November 15th, 2004, 5:56 
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Joined: April 16th, 2004, 6:56
Posts: 4
Location: Bucharest, Romania
pepe wrote:
Does anybody have more info about "VELT_G00"?


VELT_G00 (EVTLG_00) is the event log!

_________________
Regards, TheBeginner


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 Post subject: Re: MAXTOR - Anyone seen this before ?
PostPosted: November 15th, 2004, 17:02 
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Joined: May 5th, 2004, 20:06
Posts: 2782
Location: England
fujimax wrote:
pepe wrote:
Do theese idenical sectors begin with "VELT_G00"?pepe


The sectors begin with :

17 26 4B 37 7A E9 26 35


Hi guru, yes, I have original modules and screen print
of P-list before anything was done.


Here is what I did,

filled in clear g-list

OK

created new DMCS from #78 and first 2F bytes from identical drive
copied another's p-list and did trans regen.


created new DMCS or just corrected headers? MMmm why copy Plist from other drive and then to translator regen? Sounds like a big mess to me...

Why not just correct DMCS and Plist? Was glist corrupted at first??? eg NO_GLIST ???

Like I said, it's a big mess definetly translator problem. You need to reload original firmware and just correct DMCS, PLIST headers.

Did you make loader from duff drive after you used donor loader?

:heeey: :evil:

Guru


btw - I am certain that some time last year I got exactly the same
sectors with another drive. That time these sectors occurred from
about 2M to exactly middle point of drive.

Later today I will compare current mods with original and write
back originals.


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 Post subject: Re: MAXTOR - Anyone seen this before ?
PostPosted: November 15th, 2004, 17:51 
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Joined: May 5th, 2004, 1:59
Posts: 193
guru wrote:
Like I said, it's a big mess definetly translator problem. You need to reload original firmware and just correct DMCS, PLIST headers.


Hi guru,

yes seems like a mess, but I wrote this at start :

Quote:
Today worked on 2 Ares.
Both were (BAD!) - - - for plist, glist and dmcs
and copies all bad - fixed this, but...


i.e. the glist, dmcs or plist and copies were all BAD! -
modules unreadable and copies unreadable.
no headers no KS no data - kaput

I will get back to this drive later....

Posted 16/11/2004, 03:41:


1. Original P-list shows errors uhrs0: 788 uhrs1: 400 uhrs2: 51
2. Current P-list shows errors uhrs0: 753 uhrs1: 35 uhrs2: 51.

re-wrote original #33 did regen and p-list as in 2.

re-wrote original #33 NO regen and got P-list as in 1. ... great :ookay:

Now more and more sectors are correct but after 5.6M all
still faulty.

So the problem is definitely translator related.

I think problem might lie with first 3 rows of created DMCS,
I do not know what each byte means - who can tell ????


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 Post subject: Re: MAXTOR - Anyone seen this before ?
PostPosted: November 16th, 2004, 1:31 
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Joined: October 3rd, 2005, 0:40
Posts: 4335
Location: Hungary
TheBeginner wrote:
pepe wrote:
Does anybody have more info about "VELT_G00"?


VELT_G00 (EVTLG_00) is the event log!


Hello,

Yes, I know that, but I found that when I use HS, I usualy get this where the shifts are. I suppose that theese sectors were remapped in the factory... you know the rest :wink:

pepe

Posted 2004-11-16, 6:41 am:

fujimax wrote:
pepe wrote:
Do theese idenical sectors begin with "VELT_G00"?pepe


The sectors begin with :

17 26 4B 37 7A E9 26 35



Hello, again. I have seen this pattern also. At the factory they fill the entire area of theese drives not with zeroes, but this pattern sometimes. Maybe it depends on the model.
It is not surprising that You have it after 4.8M if You had NTFS on it, because it sometimes does not start with the data on the beginning of the partition.
So if You skip the portion filled with this pattern, You probably get to the area where valuable things are stored.

pepe


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 Post subject: Re: MAXTOR - Anyone seen this before ?
PostPosted: November 16th, 2004, 5:15 
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Joined: May 5th, 2004, 1:59
Posts: 193
pepe wrote:
Hello, again. I have seen this pattern also. At the factory they fill the entire area of theese drives not with zeroes, but this pattern sometimes. Maybe it depends on the model.
It is not surprising that You have it after 4.8M if You had NTFS on it, because it sometimes does not start with the data on the beginning of the partition.
So if You skip the portion filled with this pattern, You probably get to the area where valuable things are stored.

pepe


pepe ... the drive is FAT32 and from 5M to end it is filled with sectors.

guru is correct, but the sectors cannot be filled with this pattern...
On correction of #33 some sectors are now read correctly....

It must be a default pattern which is output when the translator is faulty,
or something like this.


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 Post subject: Re: MAXTOR - Anyone seen this before ?
PostPosted: November 16th, 2004, 5:35 
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Joined: May 5th, 2004, 20:06
Posts: 2782
Location: England
I would try with all original modules..... Write P list EMPTY eg no defects. correct G list header and DMCS header ..... just an experiment but would guess the original translator would have skipped out the defects anyway ;o)



fujimax wrote:
guru wrote:
Like I said, it's a big mess definetly translator problem. You need to reload original firmware and just correct DMCS, PLIST headers.


Hi guru,

yes seems like a mess, but I wrote this at start :

Quote:
Today worked on 2 Ares.
Both were (BAD!) - - - for plist, glist and dmcs
and copies all bad - fixed this, but...


i.e. the glist, dmcs or plist and copies were all BAD! -
modules unreadable and copies unreadable.
no headers no KS no data - kaput

I will get back to this drive later....

Posted 16/11/2004, 03:41:


1. Original P-list shows errors uhrs0: 788 uhrs1: 400 uhrs2: 51
2. Current P-list shows errors uhrs0: 753 uhrs1: 35 uhrs2: 51.

re-wrote original #33 did regen and p-list as in 2.

re-wrote original #33 NO regen and got P-list as in 1. ... great :ookay:

Now more and more sectors are correct but after 5.6M all
still faulty.

So the problem is definitely translator related.

I think problem might lie with first 3 rows of created DMCS,
I do not know what each byte means - who can tell ????


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 Post subject:
PostPosted: November 23rd, 2004, 13:27 
Hi folks,

I'm not an expert like you :oops: but here I have a similar problem :

HD Maxtor 6E030.

It is fully functional, no problem when it arrives. Cloned. Rebuild tree (NTFS) on cloned disk. Data is scrambled.

Looked into the disk with WinHex. Only first sectors (near 100000) are good. Then, scrambled data. Some sectors are filled with same pattern. I worked with pc3k. It said no problem on plist, glist, DMCS, ulist. Put an empty glist, refreshed modules, correct hearders, recalcolate translator... Same as above, scrambled data.

Now I put original modules back.

Any idea ? :idea:


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 Post subject:
PostPosted: November 23rd, 2004, 15:55 
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Joined: May 5th, 2004, 20:06
Posts: 2782
Location: England
Ok all original modules? Tell us what you see on Structure check... How do you use the leader ect .......


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 Post subject:
PostPosted: November 23rd, 2004, 18:01 
Hi Guru, thanks for this quick reply.

All saved modules are rpm, no bad files. Structure check gives only no checksum for modules 01 04 12 14 2D 2F 30 41 42 45 46 47 63 64 67 70 71 80 82 92 9C A3 A4 A6, but I believe it is normal. :?

No loader were used, 'cause the disk arrived to me working. It was seen by bios, and easy cloned.


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 Post subject:
PostPosted: November 24th, 2004, 3:49 
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Joined: November 14th, 2004, 19:50
Posts: 39
Location: Belgrade
the first row must be chacked in.
Nikola


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 Post subject:
PostPosted: November 24th, 2004, 4:35 
Sorry, I'm not such an expert :oops: ... What do you mean ? Thanks !


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 Post subject:
PostPosted: November 24th, 2004, 5:33 
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Joined: November 14th, 2004, 19:50
Posts: 39
Location: Belgrade
when you check firmware structure all moduls must be checked in first columne when you using pc3000.Best is safe mode ldr,moduls etc.


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 Post subject:
PostPosted: November 24th, 2004, 6:10 
Now it is clear !!! :)

Yes, the first row shows all checked flags for all modules. Only some modules (the list above) shows no checksum (second row) but it is not so important I believe...


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