Re: Filesystem free space and reserved allocation (was Re: Telnet to mail...)

["Martin Bialasinski" <martin@internet-treff.uni-koeln.de>]

* "kmself" == kmself  <kmself@ix.netcom.com> wrote:

kmself> The ext2fs default is to reserve some number of blocks -- 10%
kmself> of total, IIRC -- for root access only.  This reserved value
kmself> is *not* reported by df and other tools as available, it's
kmself> reserved off the top.  You can modify the value with, IIRC,
kmself> tunefs.

Yes, 5% that is. I have not mention the glory details for simplicity
reasons :-)

kmself> If your FS reports 95% free, then 5% of the user-allocated
kmself> space remains available.

Yes. I was wrong with this.

Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/sda7               925064    696375    180898  80% /home

When the remainig 180898 == 20% are consumed, the output will be

Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/sda7               925064    877273         0 100% /home

The remaining 47791 block are only available for root.

Ciao,
        Martin