ST2000LM-007, FW: SBK2 cricket sounds, FAIL Servo Op=0100 Resp=0003

[James]

Had a couple of these recently with exact same symptoms. 

Spins up and remains spinning. 

Heads click/beep twice then makes repetitious sound like a faint cricket, not like the usual click.

Stays BSY. 

Cannot reach terminal.

Swapped heads but symptoms remain. 

Donor heads worked back in donor.

Boot 0x80M
Low Current Spin
 FAIL  Servo Op=0100 Resp=0003

 0100 0001 0000 0001 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
 ResponseFrame 1900 0086 0821 0480 0008 0000 0000 0000 0E30 0000 0000 0000 0000 0000 0000 0DED 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0002 Loop=007F

Motor started
Heads loaded
 FAIL  Servo Op=00DF Resp=0007

 00DF 0000 0001 0005 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
 ResponseFrame 2705 2801 0001 FFFF 0000 BC38 000A FFA7 0000 0001 0000 0000 0000 0000 0000 0DED 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0002
 FAIL  Servo Op=0095 Resp=0007

 0095 73D6 0004 7FFF 7FFF 7FFF 0000 0003 0000 0000 8000 0000 FFFF 0000 0000 0000 0000 0000 0000 0000 0000 61B0 44AD A000 0000 0000 0000 0000 0000 0000 0000 0000
 ResponseFrame 0002 0001 FFFF A48D 0000 BC38 000A FFA7 0000 0001 0000 0000 0000 0000 0000 0DED 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 FFFF Loop=2247

[jol qwerr]

@James might be a problem withe motor

[James]

Thanks Joel. Is that common for these? I've never encountered that before on these. 

[Desert Data Recovery]

If there seems to be no other solutions to issues like these, we do a platter swap. 

--
Data Recovery Certification Group / for issue with google group please email sc...@myharddrivedied.com
---
You received this message because you are subscribed to the Google Groups "DataRecoveryCertification" group.
To unsubscribe from this group and stop receiving emails from it, send an email to datarecoverycertif...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/datarecoverycertification/8419a9cd-32f2-4b63-96f8-4cbb934031e4n%40googlegroups.com.

[jol qwerr]

Me nither

but judging by the described sound + the terminal log....

--

[Artem Rubtsov]

I'm puzzled how anybody could guess that the drive has motor issues from the terminal log, I don't see anything that would indicate it, I'm not even sure it would be possible to guess from the terminal log.

All I see from the serial port output is that the drive cannot servo calibrate (heads don't see servo for some reason).

I'm not saying that it is not motor issues but I find it strange. 

[pbzcbf...@gmail.com]

From my reading of the L7250 datasheet, SMOOTH motor controllers go through several phases during spin-up. Eventually the spindle servo locks onto the target speed. I would think that the track servo would not come into play until RPM lock has been achieved and reported to the MCU.

[jol qwerr]

the terminal log says

Boot 0x80M
Low Current Spin

 FAIL  Servo Op=0100 Resp=0003

.....

.....

Motor started
Heads loaded
 FAIL  Servo Op=00DF Resp=0007

......

[juan van der meulen]

Well is your donor heads 100%  compatible ?

Check for platter wobbles 

Juan

--
Data Recovery Certification Group / for issue with google group please email sc...@myharddrivedied.com
---
You received this message because you are subscribed to the Google Groups "DataRecoveryCertification" group.
To unsubscribe from this group and stop receiving emails from it, send an email to datarecoverycertif...@googlegroups.com.

To view this discussion on the web visit https://groups.google.com/d/msgid/datarecoverycertification/0866ce16-8093-462a-8cc7-a628a96aafffn%40googlegroups.com.

[Artem Rubtsov]

Joel,

I think we can all read the terminal log but you probably misinterpreted it.

James, 

1. Try to disable all heads but one and see if the drive can stay on servo with just one head, maybe there is servo damage on some surfaces.

2. Try to hotswap to get to SA (I've seen Rosewoods that fail to calibrate on start but SA is perfectly fine).

3. You can go ahead and move the platters to another base just to rule out the motor issues. 

[James]

Juan - matched the preamp, first three in serial, date etc, so should have been a match. I need to look into the platter wabble issue. I would imagine that must come from spindle bearing wear? Can't imagine the platters would warp? I would think that would result in head crash given the tolerances but interested to know other schools of thought on that. 

 Artem (hope that's right :)) - tried editing heads in ROM but no change. A hotswap is on the cards but failing that a platter swap will be the last option.

Thanks all.

[juanvd...@gmail.com]

Does the PCB part number match because I just receive the same drive and two donor with pcb that does not match but serial number is close ?

 

Juan      

--

Data Recovery Certification Group / for issue with google group please email sc...@myharddrivedied.com
---
You received this message because you are subscribed to the Google Groups "DataRecoveryCertification" group.
To unsubscribe from this group and stop receiving emails from it, send an email to datarecoverycertif...@googlegroups.com.

To view this discussion on the web visit https://groups.google.com/d/msgid/datarecoverycertification/0f2a479c-10a6-45c0-83f1-de5ec3b8233an%40googlegroups.com.

[James]

Interesting. PCB number was a match in this case.