Platter Swap Without Alignment Issues
Re: Platter Swap Without Alignment Issues
Just added a Seagate V9 to the list. Had to remove the platters for a 3 slider search and rescue.
Re: Platter Swap Without Alignment Issues
In all cases the most that was done to maintain alignment was a fine point sharpie mark on the sides.
Toshiba MK6021GAS - 2 platters/4 heads - 99.9999% of sectors recovered
Seagate ST2000LM007 - 2 platters/4 heads - 99.9999% of sectors recovered
Seagate ST3500630AS - 3 platters/6 heads - 48.9099% of sectors recovered
Seagate ST31500341AS - 4 platters/8 heads - 95.14% of files recovered
Hitachi HDT725032VLAT80 - 2 platters/4 heads - 99% of files recovered
Seagate ST3320820AS - 2 platters/4 heads - 49.1397 of sectors recovered
Hitachi HCS5C1010CLA382 - 2 platters/4 heads - 58.359% of sectors recovered
Hitachi HDT725050VLAT80 - 3 platters/6 heads - 34.75% of sectors recovered
Toshiba MK6021GAS - 2 platters/4 heads - 99.9999% of sectors recovered
Seagate ST2000LM007 - 2 platters/4 heads - 99.9999% of sectors recovered
Seagate ST3500630AS - 3 platters/6 heads - 48.9099% of sectors recovered
Seagate ST31500341AS - 4 platters/8 heads - 95.14% of files recovered
Hitachi HDT725032VLAT80 - 2 platters/4 heads - 99% of files recovered
Seagate ST3320820AS - 2 platters/4 heads - 49.1397 of sectors recovered
Hitachi HCS5C1010CLA382 - 2 platters/4 heads - 58.359% of sectors recovered
Hitachi HDT725050VLAT80 - 3 platters/6 heads - 34.75% of sectors recovered
- ddrecovery
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Re: Platter Swap Without Alignment Issues
You've been busy Brian ![Smile :-)](./images/smilies/icon_e_smile.gif)
![Smile :-)](./images/smilies/icon_e_smile.gif)
Re: Platter Swap Without Alignment Issues
Thanks Brian. I've integrated your results into the main list.
Re: Platter Swap Without Alignment Issues
Folks, I'd like to learn a little more to appreciate what you all do! In layperson terms, how do heads get re-aligned?
"Take care of thy backups and thy restores shall take care of thee." Ben Franklin revisited
Re: Platter Swap Without Alignment Issues
Wikipedia has a basic description here: Embedded Servo
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Re: Platter Swap Without Alignment Issues
So I've confirmed that you can rotate a platter 180 degrees on Dragonfly2 family with no problems afterward.
- ddrecovery
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Re: Platter Swap Without Alignment Issues
Did it affect the read speed?
Re: Platter Swap Without Alignment Issues
Are there any single platter models where swapping the platter into a donor drive does not work? I can envisage cases where such a procedure might introduce runout which cannot be accommodated by the track servo. Is that a real concern?
Do DR people ever transfer the single platter into a donor in preference to a head swap?
Do DR people ever transfer the single platter into a donor in preference to a head swap?
Re: Platter Swap Without Alignment Issues
I've never seen an issue with a single platter swap. As for swapping a single platter instead of the heads seems like a good idea on the surface, but considering you need to remove the heads in most models in order to remove the platter, it is not practical...except for the single head Maxtor N40P, where the platter swap is actually easier.