I have today recieved a STM3160215A with frozen spindle. I have performed platterswap to good chassis, but disk remains busy and does not reach ready. I have replaced PCB, and performed Head Replacement, disk still remains Busy. In PC3000 the terminal looks like:

Reset
1024k x 16 DRAM
NHAWK - 1_Disk S-42 03-27-07_13:01
HM SFI
!
ERR A6: App Code

F>


Can anyone help?


Thanks

anyone have any ideas?

Tried to check if reach servo , and check if its possible to read SA system sectors

I cannot get access to the SA, disk does not reach ready just busy and F>. how do I try to read servo or SA when stays busy? Can it be done?

there seems to be a error with APP code, I have read this with y command, here are the results:

PhysCyl GrayCyl
1st Sys Cyl 00012EE7 00014615
1st 0 Offset Cyl 00012EF1 0001461F
1st App Code Cyl 00012EFD 0001462B
2nd App Code Cyl 00012EFF 0001462D
2nd 0 Offset Cyl 00012F0B 00014639
3rd App Code Cyl 00012F17 00014645
4th App Code Cyl 00012F19 00014647
Last System Cyl 00015F0C 0001763A

I'm sorry to say, that it looks to me like the platter swap has not quite gone to plan.

Good luck with it though.

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the platterswap was done at a different DR company, I have recieved it in its current state, remaining busy. It is only a single platter disk, so alignment is not an issue. I do not think anything malicious has been done, at least I hope not!

have you checked underside of platter? might be damaged. also put the donor heads back in the donor to rule out bad donor heads. If donor still works maybe heads were not compat.

does any body think it's PCB problem?

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I have already replaced PCB and HDA, but disk remains busy with no movement of heads. I have performed a platterswap, and now disk clicks which did not happen before as heads did not move at all. I will change heads again and hopefully it will be ok. Seems like motor was faulty, not spinning up to correct speed maybe??

motor seized

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put the heads back into donor. This will confirm if they are bad.

Motor was not siezed, disk powered and motor sounds healthy which is why I assumed motor was not faulty.

Whats the history of the disk? Maybe it was dropped. I'm guessing platter damage.

may be platter swapped was not done properly- adv: only swap platter when motor issue.
choose a working donor n configure. what happens, keep posted.

_________________
__________
There is no substitute for education and experience
THANK YOU
SHAHI
shahi.mahbub@gmail.com

Disk was originally dropped. I initially thought a paltterswap had been performed by the DR company who had this disk before I did, but have since found out it had not had one.



I will update soon with more results. Fingers Crossed

Your story changes every hour and it makes it difficult to suggest any solutions.
If someone openned a drive and you decided to look at this after, you must be really good in data recovery.

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What are you talking about? My story doesnt change every hour, just my understanding of the work previously done on the HDD by another DR company. And I must be real good in DR to look at a job opened by someone else? If you turn down all work examined by somebody else first then its not me who is 'really good' but you who are 'really bad'. You have never examined a clients disk which was then sent to a different DR company? Same situation. Maybe this HD was with you before coming to me, who knows!!

If you have a suggestion which may help, then please suggest it and i will be appreciative of it, if you got nothing nice or interesting to say, dont say anything at all.

I have just wasted 5 minutes of my life reading and replying to this post of yours, that makes me unhappy!!

Just because a disk is opened, it doesn't mean the data is lost forever. I have performed numerous recoveries on disks which have been opened previously by other companies, I admit some were opened outside a clean room, others were not.

Any news on the head swap? I'm keen to see the terminal log after head swap is complete.

Headswap performed and disk still remains BSY

if I have a compatible part in stock I will try Hot Swap on monday, but right now I am concentrating on other jobs, like my toshibas