"The Hard Disk You've Been Waiting For"

Sean Conner spc at conman.org
Wed Apr 28 14:12:32 CDT 2010


It was thus said that the Great Jules Richardson once stated:
> William Blair wrote:
> >10MB for only US$3398 (plus shipping?):
> >
> >http://gizmodo.com/5524908/the-hard-disk-youve-been-waiting-for
> 
> Cost issues aside, I wonder what the average file size is then vs. now? A 
> comparison of "number of average-sized files that can fit on a disk" might 
> be interesting.
> 
> For this desktop my average size is 236KB, so it's "about" a million files 
> on the machine's 250GB disk. I wonder if that number's stayed reasonably 
> constant across the decades?

  I actually have hard numbers for my system here (last calculated a few
months ago).  For my home directory ($HOME, running a Linux system here) the
stats are:

Files:                 503444
Largest path:             339
Largest filename:          85
Largest extention:         59
Largest MIME type:         29
Longest username:           9
Longest groupname:          9

		(count)		(bytes)
count:            503444          46860976844
files:            466163          46709437848
dirs:              35360            151490560
char-device:           0                    0
block-device:          0                    0
named-pipe:            1                    0
symlink:            1918                47753
socket:                0                    0
others:                2                  683
average size:                           93080
median:                                  3958

and for everything *but* $HOME:

Files:                 385096
Largest path:             124
Largest filename:          73
Largest extention:         39
Largest MIME type:         25
Longest username:           9
Longest groupname:          9

count:            385096           8563122958
files:            332846           8428072197
dirs:              33266            134631740
char-device:         181                    0
block-device:        106                    0
named-pipe:            3                    0
symlink:           18665               418338
socket:               28                    0
others:                1                  683
average size:                           22236
median:                                  2826

This, on a 150G drive.

  -spc (And the sizes almost follow Benford's Law [1][2])

[1]	http://news.ycombinator.com/item?id=1076788

[2]	http://news.ycombinator.com/item?id=1076405




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