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Disk Tracks and Transfer Rate

JCW2
JCW2 asked
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Last Modified: 2012-05-11
Does the transfer rate for a disk depend on the total capacity for a track, or useful capacity for the disk's tracks?
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Aaron TomoskyDirector, SD-WAN Solutions
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Commented:
If those are the only choice I'd say useful capacity of the disks tracks. But there are so many other more important properties to the disk that affect transfer rate that I hate to even choose one of these.
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Top Expert 2013

Commented:
The disk transfer rate relies more on the read/write speeds than on the sizes.
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Commented:
But I agree that the useful size would have more impact than the total size.

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Commented:
Formula: tr = T*p where T is the track capacity and p is the disk rotation speed. Does this clarify anything?
andyaldersaggar maker's framemaker
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Commented:
Not really valid since the true physical geometry is hidden by logic on the board which presents a logical geometry to the computer.
Aaron TomoskyDirector, SD-WAN Solutions
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Commented:
Then there are multiple heads, cache, cav vs clv, sector size, slackspace
Aaron TomoskyDirector, SD-WAN Solutions
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Commented:
Do you mean the track capacity as in total capacity (or useful capacity?)
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Commented:
Thank you for your help.
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