Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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question about patitions

March 3rd, 2022, 16:15

Hello All :)

I'm looking for some information on HDD partitioning.

I got myself a mega drive 18TB monster (for me anyhow) :)

It has 9 x 2 TB platters in it.

My question is will it matter performance wise if I for instance make a 2 TB partition or make 2 X 1 TB or maybe across multiple platters ?

Has this been tested ? I'm no HDD guru so that why I come here. Maybe the ram of a HDD fixes these possible performance diferences.

Thanks

Sebastian

Re: question about patitions

March 3rd, 2022, 18:13

You seem to be under the misconception that data fills the first platter, then the second, then the third and so on. In fact the HDD writes maybe 100 tracks on the first platter, then switches to the next platter and writes another 100 tracks, and so on.

If you wish to optimise your performance, you would confine the most frequently accessed data to the outermost tracks. You can do this by placing these files in the first partition.

You can see how the performance varies by examining a HD Tune read benchmark graph.

Re: question about patitions

March 3rd, 2022, 18:32

fzabkar wrote:You seem to be under the misconception that data fills the first platter, then the second, then the third and so on. In fact the HDD writes maybe 100 tracks on the first platter, then switches to the next platter and writes another 100 tracks, and so on.

If you wish to optimise your performance, you would confine the most frequently accessed data to the outermost tracks. You can do this by placing these files in the first partition.

You can see how the performance varies by examining a HD Tune read benchmark graph.


Oh ok, wow, did not even think about this like that. For me it would be logical that it fills up 1 platter after the other. Thanks for the quick answer and the good advise :)
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