Time: Wed Jun 04 14:07:05 1997
	by primenet.com (8.8.5/8.8.5) with SMTP id NAA28930
	for [address in tool bar]; Wed, 4 Jun 1997 13:56:19 -0700 (MST)
Delivered-To: liberty-and-justice-outgoing@majordomo.pobox.com
Date: Wed, 04 Jun 1997 13:51:04 -0700
To: Neil Randall <nrandall@sprynet.com>
From: Paul Andrew Mitchell [address in tool bar]
Subject: L&J: "Partitioning Your Hard Disks," PC Magazine, 6/10/97, p. 243

Dear Neil,

You don't know me, but I wanted to write and
thank you for such an excellent article on
hard disk partitions.  You write with a style
that is very clear and, shows how much you really
do know about the subject.  I taking the liberty
of sharing this message with the Eudora users
list which I recently joined.  Everyone will 
benefit from reading, and saving, your great
article.  Thanks again!  I hope the list will
forgive me if I am too far off topic, but your
article is just too good to miss.

Keep up the good work, please!!

/s/ Paul Mitchell
http://www.supremelaw.com

p.s.  A measurement technique now follows,
with annotations to explain the derivations.


[This text is formatted in Courier 11, non-proportional spacing.]

Grier,

Here are the results from your command sequence
on the two partitions I have on a 486 tower PC.

Many thanks for the great tips!

/s/ Paul Mitchell
http://www.supremelaw.com


Paul Mitchell's Windows 3.11 machine,
with relatively new Western Digital 1.6 GB
EIDE hard drive, assigned to partition C:,
no disk compression:

C:\> dir c:\ /s

[long list of files here]

Total files listed:
   20,065 file(s)    904,348,728 bytes
                     225,771,520 bytes free  (now annotate:)
                   -------------
REAL  CAPACITY:    1,130,120,248 bytes
RATED CAPACITY:    1,622,343,680 bytes (see CHKDSK below)
                   -------------
WASTED SPACE:        492,223,432 bytes! (RATED - REAL)

PERCENT WASTED:             30.3%  (492/1622)

C:\> chkdsk

Volume primary486  created 11-23-1996 9:35p
Volume Serial Number is C729-1F9C

1,622,343,680 bytes total disk space
   57,081,856 bytes in 6 hidden files
   36,274,176 bytes in 1,107 directories
1,303,216,128 bytes in 16,744 user files
  225,771,520 bytes available on disk

       32,768 bytes in each allocation unit (cluster size)
       49,510 total allocation units on disk (number of clusters)
        6,890 available allocation units on disk

[snip]

Now we do the same sequence on the D: drive,
a 340 MB Western Digital, vintage 1993,
no compression (and still running great):

C:\> d:
D:\> dir d:\ /s

[long list of files here]

Total files listed:
    9,782 file(s)    292,469,197 bytes
                       6,864,896 bytes free (now annotate:)
                     -----------
REAL  CAPACITY:      299,334,093 bytes
RATED CAPACITY:      340,746,240 bytes (see CHKDSK below)
                     -----------
WASTED SPACE:         41,412,147 bytes (RATED - REAL)

PERCENT WASTED:             12.1% (41/340)

D:\> chkdsk

Volume second486   created 11-23-1996 9:36p
Volume Serial Number is E3E2-5496

  340,746,240 bytes total disk space
       81,920 bytes in 2 hidden files
    5,660,672 bytes in 682 directories
  328,138,752 bytes in 7,736 user files
    6,864,896 bytes available on disk

        8,192 bytes in each allocation unit (cluster size)
       41,595 total allocation units on disk (number of clusters)
          838 available allocation units on disk

[snip]

                             #  #  #

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