A client gave me an external goflex desk saying it was not accessible. After some tries i got the access to hd but when i try to copy data the box begins to flash like hd is in standby. If i try to use it on a desktop pc the hard disk is recognized by the bios and windows, but if i try to get data windows freeze (linux after some time gave me an error). I thought the hard disk had come bad sectors so i tried to use hdd regenerator; the scan begins, it gets some delay in the firsts sectors and after 3,2 gb (or 3,6 i don't remember good now) it says the drive is disconnected. i read over the internet a lot of posts speaking about 0lba fix and stand-by fix for seagate 7200.11 that works even for barracuda lp so i bought rs232 ttl to usb but i will try tomorrow to runs comands from putty to try to fix it... Has someone got the same problem with an hard disk like this one? I'm a bit confused about the problem, causa 0lba should gave me strange hd name in bios with 0 gb or 3,2 gb but it seems good in bios and in windows (first time i tried in the desktop, windows wanted to initialize hd anyway).... I hope someone can helps me

You should not experiment on customer drives. You will end up damaging your businees by trying random things on customers data. Do the responsible thing, find a dat recovery lab and set up an outsource agreement. Your customers will appreciate the honesty and the added capabilities you have(by extension of the lab) and you wont lose customers and reputation trying to make a quick $100 by trying things off the internet. sorry to say but this is a recipe for disaster. As you don't know what the problem is, there is no way you can just expect to run commands from putty.I dont know if even running HDD Regenerator was a good idea.

Dont get suckered in thinking a dr lab would cost too much, and the client might not want to pay, and that by playing you are doing them some favour. Many command and internet advice can kill your chances or make recovery more expensive.

I hope you see it is not a personal attack, you may not have weighed up all the options and thought enough ahead about this.

Cheers

Molto probabilmente ci sono dei settori danneggiati.
I barracuda LP hanno una lista chiamata NRG list, se inserisci i comandi terminal come per i 7200.11 distruggerai tale lista e non avrai più accesso ai settori che seguono il primo LBA danneggiato.
Se tu o il tuo cliente avete già inviato i comandi i4,1,22 e m0,2,2,,,,,22 allora una parte dei settori potrebbe non essere più accessibile (dal primo LBA danneggiato riscontrato fino all'ultimo LBA) e questo lo noteresti facendo una scansione in MHDD, cioè vedresti una serie di settori danneggiati consecutivamente fino all'ultimo LBA.

Se è questo il sintomo riscontrato allora bisognerà ricostruire la NRG list ma non si può fare in terminal ma avrai bisogno di apparecchiature hardware per lavorare a livello firmware sulle liste.
Io possiedo HD Doctor per fare ciò!!

Ti sconsiglio HDD Regenerator, non ripara affatto i settori fisicamente danneggiati, al limite li rialloca nella spare area, ma se ce ne sono tanti andrai a riempire la G-list causando ulteriori problemi.
Quando invece non li rialloca li formatta e quindi si perdono i dati in essi contenuti, inoltre stressa molto le testine che possono danneggiarsi (ammesso che non siano già danneggiate).

_________________
My firmware database:
https://mega.nz/folder/O01DkBRI

after 0lba fix commands i lost partition and got the hdd doing like rendundant read (this is what i heard)... After trying the stand-by fix the hdd still did the same thing... The client said me (when he gave me the hdd) he was not aviable to send it to a specific center, cause the data he has on it was not so much important... Now the hard disk read very slow but seems i can read it (even if it will need hours and hours). I warned the client that hard disks was not my kind of work.. Tomorrow i will think what to do with it

@michael mi sembri molto preparato, secondo te come mai l'hdd andava in stand-by prima dopo aver letto 3,2 GB?

Hi, you don't warn the client, you tell him. You are the boss, I know what it is like to feel like you must help them, but believe me, it is not helping him or you by taking up hours of your time for something you will get little reward for.

It is ok to tell a client that you cannot do the job.

Can someone say me where i can find some information to study how hard disks works? I would like to open a support center at the end of university, i'm studying IT engineering but we never studied hard disks so deeply as you guys know them

There are various threads on this forum that point to so much information you will either be able to use them as a starting point to branch off and find everything you will need to know... or your ears will start to bleed from overload.

Do what I did when I started here...

I sat down and started at the first "easiest" looking forum, and opened every thread. I did skim through but you will find mention of other threads, hard disk technology, datasheets, electrical info etc etc etc.

you cannot "learn hard drives" without buying or getting some and starting to research yourself. get a cheap $3 terminal adapter and start looking at what you can do through terminal.

BTW, I quickly decided that I never would have the time to get to the ultimate goal of HDD Pro, so I limit to the occasional interesting case where data (if I kill the drive) does not matter.

I chose to focus on Flash, so I have bought quite a few hundred flash devices and are studying them.

hope that gives you a general methodology on how to proceed, as there is no easy way like you would learning C++ or becoming a real estate agent, or even something like a help desk support or Network engineer.

not trying to put a downer or convince you it is too hard, simply saying there are so many different issues, different drives, different "gotchyas" different tools and couple that with a very low amount of actual instant actionable information... and the tools are very expensive, without them you wont get too far.. that it IS HARD, but dedication, and personal motivation to soldier on, and not rely on getting info from others so much is the key.

Ciao, se vuoi posso provare a recuperarlo io, sospetto che ci siano dei settori danneggiati con alcuni pendenti + NR G-list danneggiata.


ciao.

_________________
My firmware database:
https://mega.nz/folder/O01DkBRI

Really thx, i will do like you say... I will beginning to study hdd from this forum to learn more. I really like to find how the IT things works (unfortunatelly here the university is too much teorically based)

like a Lecturer told me once at University: You should never let University get in the way of Learning.

In fact I used to think the same way, it was mostly Theory based, until I realised that it can be as theory based as YOU want. Once you start looking at University you will see many opportunities to get involved in some pretty cool stuff. There are all kinds of things happening there, you have to find them. research groups, mailing Lists, extra curricular activities. If you have an idea, such as some data analysis, and you know a lab has some equipment, most cases you would be able to get the use of it if you approach them correctly.

I spent approx 40% maximum of my time at Uni doing actual curiculum