Barracuda 7200.10: Spin motor locked

[shaun]

Hi all,
another day, another seagate.
I've a 320GB Barracuda 7200.10 here, error: spin motor locked.
It squeals while trying to "buzz" and the stops with the above message.
The current waveforms to the spindle motor look ok on the oscilloscope.
From your experience, what shoud I expect: head stick onto one surface or bearing?
The drive was in an external enclosure, so my guess is that it got rather hot.

[grig85]

just open it and see, it will have to be opened one way or another to fix this.
we had numbers of them here that we were not even able to rotate manualy even bearings were dead on. same "buzz"

[shaun]

Yep, the point is that the customer would pay the recovery if we manage the platters to start up, but definitely not for a MHA swap. I'll see if I can get some cleanroom time the next days, otherwise he would either wait or pay lots of bucks elsewhere. Time to get our cleanbox ready I'd say...

[grig85]

Yep, the point is that the customer would pay the recovery if we manage the platters to start up, but definitely not for a MHA swap. I'll see if I can get some cleanroom time the next days, otherwise he would either wait or pay lots of bucks elsewhere. Time to get our cleanbox ready I'd say...

yeah, there is couple of things to try before you start to swap anything. like I said guessing is useless, you need to open it and see for yourself.

[jono-ats]

Motor bearing seizure is fairly common on this model.

Even if you manage to free the motor, the vibration from the bad bearing may make it practically impossible to image the drive.

I've made a tool to free the motor, but haven't yet been able to read the data.

Seagate's dampeners between the platters makes platter swaps undoable for me.

Jon

[PijoMax]

Probably I have a similar tool... but hope !!! Sometimes I was able to recover the data.

[shaun]

Could you two please give me a hint what kind of tool you use for freeing the motor?
Times are gone when we opened full size 5,25" "winchesters", turned the power on and helped turning by hand I guess

[jono-ats]

Here is one for WD, Seagate, & Maxtor

Attachments

[PijoMax]

Shaun, see your PM

[shaun]

Thank you,
I'll give it a try next week.

[salvationlaura]

Here is one for WD, Seagate, & Maxtor

Jon,

You always keep making surprise and full of aspiration.

Even It looks similar like a complex flask opener. I believe it is easy to use and can free Motor bearing seizure.

You can make more research and find a solution of vibration of platters when freezing the motor.

I will wait for your next generation flask opener, oh, no, your motor seizure unlocker.

Best REgards,

Laura Lee

[pepe]

Hi

I had several of these seagates and these were done with rather good success rate. Apart from the one that almost jumped off the bench when it seized again during imaging that was cool. A jumping seagate

pepe

[shaun]

Good hint, I'll place the dustbin accordingly

[jono-ats]

Here is one for WD, Seagate, & Maxtor

Jon,

Even It looks similar like a complex flask opener. I believe it is easy to use and can free Motor bearing seizure.

I will wait for your next generation flask opener, oh, no, your motor seizure unlocker.

Laura Lee

Hi Laura,

Nothing too mysterious or high tech about my "flask opener."


Best regards,

Jon

[TerraNova]

I have seen many 7200.10 series with motor problems, some i managed to free the motor but some were totally dead locked.

Pepe, did you use a tool similar to Jono to free the motor? or you have something else?

Jono, with your tool..did you just keep turning the motor until it loosen a bit?

Thanks

[jono-ats]

Yes.

[PijoMax]

You have to use some patience... sometimes is a long work. A way to reduce vibration when it is almost free is to start motor with the open case, and stop when the spin reach right speed, one moment before heads start to move. You will find right moment with some experience. Start and stop again and again. Every time you will have less vibration. And, don't forget to fix it in some way during recovery... or it will jump off the table (suicide drive ?) !!!

[rameez]

A jumping seagate lol .
Seagate == sucide of data .

[salvationlaura]

well,
If
Seagate == sucide of data .
Then
Maxtor== Maximum Tolerance Tester.

[rameez]

As far as i have seen WD drives Marvell series is Shit .