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donkeyass
Omega Member

USA
474 Posts

Posted - 11/06/2009 :  02:55:13 AM  Show Profile  Visit donkeyass's Homepage  Send donkeyass an AOL message  Reply with Quote
im not even gonna try and hide it, i have the is hw problem that gives you characteristics of a hdd and im supposed to tell things about it. it says...


Consider a disk with the following characteristics: block size B=512 bytes, interblock gap size G=128 bytes,
number of blocks per track=20, number of tracks per surface=400. A disk pack consists of 15 double-sided disks.

What is the total capacity of a track and what is its useful capacity (excluding interblock gaps)?


i mean i understand that, its very simple to say that a track has (20*512) bytes in a track (plus interblock size) except how can each track have the same number of blocks per track? the inner tracks are obviously smaller than the outer tracks? im not trying to nag anyone for answers, this just doesnt make sense to me.

Do you see what happens when you FUCK a stranger in the ASS?!

Edited by - donkeyass on 11/06/2009 02:58:00 AM

hexed
Advanced Member

United Kingdom
2651 Posts

Posted - 11/06/2009 :  04:53:25 AM  Show Profile  Reply with Quote
quote:
Originally posted by donkeyass

number of blocks per track=20

In the past, for simplicity disks were programmed to have the same number of sectors on each track, like this. So you should be able to assume the sectors-per-track is constant for all tracks - if it were otherwise, the question would be impossible without more information.

Seeing how the old arrangement was is grossly inefficient, everything nowdays uses LBA.

Edited by - hexed on 11/06/2009 04:55:20 AM
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donkeyass
Omega Member

USA
474 Posts

Posted - 11/06/2009 :  12:25:10 PM  Show Profile  Visit donkeyass's Homepage  Send donkeyass an AOL message  Reply with Quote
ok so i can assume that the tracks hold the same number of blocks even though they are different physical sizes, its just kind of a map more than like an exact physical layout then ya?

Do you see what happens when you FUCK a stranger in the ASS?!
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hexed
Advanced Member

United Kingdom
2651 Posts

Posted - 11/06/2009 :  12:41:07 PM  Show Profile  Reply with Quote
Yes, more or less.
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donkeyass
Omega Member

USA
474 Posts

Posted - 11/06/2009 :  3:46:07 PM  Show Profile  Visit donkeyass's Homepage  Send donkeyass an AOL message  Reply with Quote
awesome that clears it up for me! thank you much!

Do you see what happens when you FUCK a stranger in the ASS?!
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