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arvika
 Post subject: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 24th, 2012, 8:41 
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Joined: October 24th, 2009, 15:22
Posts: 917
Location: Poland
Hello friends,

I have Seagate 7200.11 ST3500320AS with broken heads. It looks like simple case.
I swapped heads to new one from compatibility drive (I think it is compatible ;) ) I can read data from H1 and H2 without ANY problem. From H0 and H3 data is read but TERRIBLY slow.
Heads worked fine when i back them to donor. I try swap both magnets too, top magnet only, bottom magnet only, nothing change.

I think it is quite popular problem with Seagate .10, .11 and .12. I have few cases like this. If anyone manage with this problem and could share this info I will be grateful. PM is enough.

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harddrivespecialist
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 24th, 2012, 16:19 
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Joined: January 15th, 2008, 11:06
Posts: 1419
Location: Providence, RI. Boston, MA USA
I think you better continue reading it, even though its very slow.

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arvika
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 24th, 2012, 18:21 
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Joined: October 24th, 2009, 15:22
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Location: Poland
harddrivespecialist wrote:
I think you better continue reading it, even though its very slow.


Yes, but it goes REALLY slow. It can take about 3-5 months to read it. I'm sure it is heads issue with compatibility. Surface is fine, SA is fine.

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BlackST
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 25th, 2012, 2:13 
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Joined: July 18th, 2006, 3:05
Posts: 7476
Location: ITALY
Even with headmap? (clone first the working heads that read fast then the remaining). Otherwise I would try first another headstack then move pack and heads to another chassis, rather than playing with SA...
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arvika
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 25th, 2012, 5:49 
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Joined: October 24th, 2009, 15:22
Posts: 917
Location: Poland
Yes, even with headmap... I try two different headstack. I clone from two heads first with normal speed. Then from two others, but it goes very slow. Heads are ok, when I put them back to donor they work very good with nominal speed.

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BlackST
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 25th, 2012, 7:15 
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Joined: July 18th, 2006, 3:05
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Location: ITALY
I'll pm you later today.
Meanwhile, have a merry Xmas.
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arvika
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 26th, 2012, 15:46 
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Joined: October 24th, 2009, 15:22
Posts: 917
Location: Poland
BlackST wrote:
I'll pm you later today.
Meanwhile, have a merry Xmas.



Mery Christmass :)

I will wait for PM.

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barak
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 27th, 2012, 4:15 
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Joined: September 1st, 2007, 14:39
Posts: 101
Location: Finland
Is it possible it could be the pending bug?

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BlackST
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 27th, 2012, 4:27 
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barak wrote:
Is it possible it could be the pending bug?


NO.
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barak
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 27th, 2012, 4:40 
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BlackST wrote:
barak wrote:
Is it possible it could be the pending bug?


NO.


And the argument for this accurate answer is the fact that two heads out of four are reading perfectly.

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northwind
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 27th, 2012, 4:55 
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Joined: January 28th, 2009, 10:54
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Location: Greece
terminal output?

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arvika
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 27th, 2012, 5:11 
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Joined: October 24th, 2009, 15:22
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Location: Poland
northwind wrote:
terminal output?


Rst 0x20M
(P) SATA Reset


:)

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northwind
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 27th, 2012, 6:26 
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Are there no output messages when imaging the slow heads?
Did you enable the option where full report is shown on terminal?

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arvika
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 27th, 2012, 7:34 
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Joined: October 24th, 2009, 15:22
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Location: Poland
No, there is no output while reading. At this moment I read this drive about ~15 mln/24h so don't want interrupt until reads.

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hdrescue
 Post subject: Re: Seagate 7200.11 ST3500320AS problem after head swap
PostPosted: December 27th, 2012, 12:30 
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Joined: March 8th, 2010, 15:44
Posts: 176
Location: Portugal
Did you tried with other destination drive?
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