November 17th, 2016, 11:54
November 17th, 2016, 14:47
November 17th, 2016, 15:49
data-medics wrote:I think the question on everyone's mind looking at this tool is: What about platter alignment?
I know that modern drives write servo on each platter surface, but it's my experience that they are still extremely sensitive to any loss of alignment.
November 17th, 2016, 18:20
November 18th, 2016, 11:36
November 20th, 2016, 4:06
data-medics wrote:I agree fully that it shouldn't matter. But, for whatever reason if you rotate a platter even a little they tend to stop working. Maybe it's caused by something else, but I still never remove platters one at a time.
November 20th, 2016, 10:01
November 20th, 2016, 16:03
LarrySabo wrote:I have nothing to add regarding the tool; I just want to congratulate Amarbir for his greatly improved English and typing. Well done, Amarbir!
December 25th, 2016, 16:41
Amarbir[CDR-Labs] wrote:data-medics wrote:I agree fully that it shouldn't matter. But, for whatever reason if you rotate a platter even a little they tend to stop working. Maybe it's caused by something else, but I still never remove platters one at a time.
Well,
I am with you on this one but this is what nikola is saying .BTW nikola i do not use any of your tools til today ,Might be some day i will once we in india start getting good payment for DR work in respected to americans and european DR firms .Anyway i will share my viewpoit cos i said the same to you in a facebok or youtube post
You Said : The Platter Stand is a support tool, developed after numerous request from our clients.
Reply : Well no doubt about that
You Sad :To use it, a certain level of experience and knowledge is needed. If you have ever cleaned the platters of the drive struck by the floods, unskilled/sloppy data recovery technician or client, this tool would be very useful in terms of:
Reply : Well unfortunately how many of those DR firms/People you know can remove a multiplatter Hard drive platters and fix them back .I do not think its easy without a proper machine or some tools which i a sure 99.9 skilled and experienced DR guys have not got .The Rest 0.1% are companies like seagate data recovery "BTW i did see a platter stand on one one thier video and it was for single platter " .
You Said :1. Having an easy approach to the platters
Reply : True Its a Great Tool For Single Platters .But if the tech cannot reassemble multiplatter platter stack back taking ,inspecting ,cleaning multiplatter stack does not make sense
You Said :2. Avoiding problems with other platters while inspecting one
Reply : Well that is true ,even for single platler i would say .
You Said :3. Easily sinking the platter into the cleaning liquid etc. etc.
Reply : Totally Useless Idea in my opinion ,You will need a big dia utensil/cleaner and it will need to be deep ,Were as single platter and muti platter stacks can be cleaned [ Properly ] With a 2 Inch Deep Cleaner/Utensil Just at the size of the hdd 3.5" or 2.5" when hdd it vertical standing " .Plus no issue wth mutiplatter adjustment .For inspection well for single platter there are simpler ways to do it and for multiplatter makes zero sense if we cannot reassemble to make it work again .
You Said :We have made a simple and safe holder for the platters. It is up to data recovery engineer how to manage the platters and how many of them. We were asked by experienced data recovery engineers to develop such tool and so far we receive nothing but positive impressions.
Reply :Well yes you have made it simple and safe .Well 99.9% of us cannot manage multiplatter alignments .
PS : my opinions are based on the fact of my knowledge and daily working with physical work in my lab .If someone wants to pour in better views of multiplatter alignment i would be grateful .Cheers nikola keep making new tools
January 15th, 2017, 3:25
January 15th, 2017, 10:08
January 16th, 2017, 3:51
LarrySabo wrote:@Keatah, I'm sure many of us would be interested in learning more about how this is done. I assume it requires production-grade equipment that very few of us could possibly afford. Any links?
February 20th, 2020, 6:34
February 20th, 2020, 15:07
eazycut wrote:Hdd surgerys platter stand is the safest and best tool for inspecting a multi platter drive. Other platter stand tool (chinese copies) are not safe to work with!
So if you are serious you will buy the Hdd surgery platter stand soon or later or when you understand the difference.
March 4th, 2020, 16:21
fzabkar wrote:data-medics wrote:I think the question on everyone's mind looking at this tool is: What about platter alignment?
I know that modern drives write servo on each platter surface, but it's my experience that they are still extremely sensitive to any loss of alignment.
I confess my ignorance. Why should there be any alignment issue with an embedded servo?
AISI, if the relative rotational position (disc-to-disc skew) is disturbed, then the platter merely needs to rotate a little more in order to compensate for the difference.
Is this "alignment" referring to eccentricity? If the platter is a little off-centre, then perhaps its "wobble" could fall outside the range of the servo.
BTW, I do understand that there is an alignment issue -- I just don't understand why.
March 7th, 2020, 14:17
I agree with the concept of a little more rotation (if you are saying w.r.t RPM)
Simple physics says that faradays law is emf = -d(phi)/d(time) where - sign indicates lenz law.
So a little more RPM would mean a little more d (phi) ie angular velocity due to rpm would create more emf
more emf better signal ?
March 8th, 2020, 16:27
March 8th, 2020, 17:03
March 9th, 2020, 7:09
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