On 09/19/2014 11:10 AM, Jeb Thomson wrote:
With the advanced features of btrfs, it would be an additional simple task to make different platters run in parallel.
In this case, say a disk has three platters, and so three seek heads as well. If we can identify that much, and what offsets they are at, it then becomes a trivial matter to place the reads and writes to different platters at the same time.
In affect, this means each platter should be operating as a single virtualized unit, instead of one single unit...
Regards,
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A disk drive has only one actuator that moves all heads in parallel.
Also disk drives are an array of logical blocks today; nobody uses
cylinder/head/sector addressing any more.
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