Date: Tue, 11 Aug 2009 00:41:06 +0000 From: Naeem Afzal <nafzal@hotmail.com> To: <freebsd-fs@freebsd.org> Subject: filesystem size after newfs Message-ID: <COL111-W23AF31CB4D2944209932C6D1070@phx.gbl>
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resending to FS mailing list:I created this small partition of 512K bytes o=
n disk=2C I am noticing about 24% is used up before system can be mounted a=
nd used. My assumption was about 4% is supposed to be used if minfree is se=
t to 0.
#newfs -U -l -m 0 -n -o space /dev/ad1d
/dev/ad1d: 0.5MB (1024 sectors) block size 16384=2C fragment size 2048 =
using 1 cylinder groups of 0.50MB=2C 32 blks=2C 64 inodes with soft updates
super-block backups (for fsck -b #) at:
160
#mount /dev/ad1d /test
#df -H /test
Filesystem Size Used Avail Capacity Mounted on
/dev/ad1d 391k 2.0k 389k 1% /test
Could someone explain where the 512-391=3D121K of disk space went to? W=
hat is the relation between this used of space and total paritition size or=
is it some fixed ratio?
Thanks & Regards
Naeem
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