ES 3.0 Typical/Everything Disk Space Info

[Rick Stevens]

Carr, Steve M CW4 FL-ARNG wrote:
> Rick, picking automatic partitioning and load everything automatically loads
> everything under the "/ (root)" directory.  

Everything is ALWAYS under the "/" directory (that's why it's called
"root" :-) ).  The question is whether things such as "/usr" are simple
directories or mountpoints where other filesystems are mounted.  In my
example at the bottom of this post, you can see that /usr, /var, /images
and /work are separate filesystems.  A similar table for the running
system to yours would show:

	[root at prophead /]# du -hs
	52G     .

	[root at prophead /]# du -hs *
	5.5M    bin
	4.5M    boot
	428K    dev
	42M     etc
	0       home   (symlink to /usr/home)
	35G     images
	85M     lib
	16K     lost+found
	4.0K    misc
	20K     mnt
	4.0K    oldsys
	4.0K    opt
	515M    proc
	1.9M    root
	17M     sbin
	52K     tftpboot
	684K    tmp
	12G     usr
	775M    var
	3.3G    work

So one would think 52G is in "/", when in reality, only 773M is actually
in "/" (see my table below).  The rest is in filesystems MOUNTED under
"/".  This is why you must be really clear about the differences between
directories and filesystems.

> I added another line for clarification.  
> Thanks for pointing out the confusion of the table. 

That's my job!  ;-P

> 
> 
>>If you are planning to manual configure your partitions this will help in
>>determining partition sizes.
>>RedHat's documentation says ("/"  350MB-5GB) and  ("/var"  3GB or larger).
>>
>>This info was gather using Automatic Partition
>>
>>When installing RedHat ES 3.0 here are the disk space usage after install
>>for Typical / Everything.
>>
>>MB Table
>>- - - - - -  -Typical - - - - - - - - - Everything
>>==============- - - -===================- - - - - 
>>/ - - - - - 1,461,040 - - - - - - - - - 4,162,096
> 
> All the below directories are install under "/".
> 
>>/usr - - -  1,344,648 - - - - - - - - - 3,888,528
>>/lib - - -     50,276 - - - - - - - - - 145,420
>>/var - - - - - 30,668 - - - - - - - - - 86,092
>>/etc - - - - - 18,000 - - - - - - - - - 23,504
>>/sbin - - - -  11,400 - - - - - - - - - 11,872
>>/bin - - - - -  4,900 - - - - - - - - - 5,336
>>/root - - - - - - 528 - - - - - - - - - 604
>>/dev - - - - - - -428 - - - - - - - - - 428
>>/tmp - - - - - - - 40 - - - - - - - - - 44
>>/home - - - - - -  36 - - - - - - - - - 64
>>/opt - - - - - - -  4 - - - - - - - - - 4
>>All others were 4 or less
> 
> 
> Uh, that's not a good example, Steve.  Try giving us the output of
> "df -h".  There is no way that "/" has 4GB of stuff in it--that must
> include all of the partitions mounted under it.  "df -h" will show the
> disk usage by filesystem/mount point.  My "full install Fedora Core 1"
> install shows:
> 
>  [root at prophead root]# df -h
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/hda1            1012M  188M  773M  20% /
> /dev/hda2              40G   31G  7.0G  82% /images	(CD-ROM images)
> none                  252M     0  252M   0% /dev/shm
> /dev/hda7              66G   12G   51G  20% /usr	(Development)
> /dev/hda5             4.0G  806M  3.0G  22% /var
> /dev/hda3              40G  3.3G   35G   9% /work	(More develop.)
> 
> The VAST majority of stuff ends up in /usr.
> ----------------------------------------------------------------------
> - Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
> - VitalStream, Inc.                       http://www.vitalstream.com -
> -                                                                    -
> -   You possess a mind not merely twisted, but actually sprained.    -
> ----------------------------------------------------------------------
> 
> 
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-- 
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- Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
- VitalStream, Inc.                       http://www.vitalstream.com -
-                                                                    -
-         "If you can't fix it...duct tape it!"  - Tim Allen         -
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