Disk space allocation
merritt.alex at gmail.com
Fri Apr 17 14:26:10 UTC 2015
On Fri, Apr 17, 2015 at 10:07 AM, lokadamus at gmx.de <lokadamus at gmx.de> wrote:
> On 04/15/15 20:45, Alex Merritt wrote:
> > Hello,
> > File systems such as ext3/4 reserve some amount of space for allocation
> > only by privileged users, which can be adjusted, e.g.
> > tune2fs -m reserved-blocks-percentage /dev/sdaN
> > I installed a BSD system using Virtualbox, giving it an 8GB disk, but
> > shows an aggregate size among all mount points to be less than the
> > capacity. The minfree parameter to tunefs defaults to 8% (see below) but
> > does not account for the difference in 8189MB capacity vs sum of ca. 6G
> > among all file systems (shown by df). There's ca. 27% of capacity
> > unavailable.
> > What could I be missing here?
> > # fdisk
> > [...]
> > The data for partition 1 is:
> > sysid 165,(DragonFly/FreeBSD/NetBSD/386BSD)
> > start 63, size 16773057 (8189 Meg), flag 80 (active)
> > beg: cyl 0/ head 1/ sector 1;
> > end: cyl 1023/ head 255/ sector 63
> > # dumpfs /dev/ad0s1a | grep minfree
> > minfree 8% optim time maxcontig 15 maxbpg 2048
> > # df -hT
> > Filesystem Type Size Used Avail Capacity Mounted on
> > /dev/serno/--.s1a ufs 620M 140M 431M 24% /
> > devfs devfs 1.0K 1.0K 0B 100% /dev
> > /dev/serno/--.s1d ufs 2.2G 396K 2.0G 0% /home
> > /dev/serno/--.s1e ufs 248M 10K 228M 0% /tmp
> > /dev/serno/--.s1f ufs 2.6G 1.5G 882M 64% /usr
> > /dev/serno/--.s1g ufs 248M 213M 15M 93% /var
> > procfs procfs 4.0K 4.0K 0B 100% /proc
> > Thanks!
> > Alex
> > _______________________________________________
> > freebsd-questions at freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> > To unsubscribe, send any mail to "
> freebsd-questions-unsubscribe at freebsd.org"
> Which filesystem and FreeBSD Version you are using?
> UFS/ UFS2 have an option, that in default setting 10% are reserved.
> So you can use your partition with 110%.
I am using DragonFly BSD, and "geom" does not seem to be in the package
repository. I mailed here assuming it is not a distro-specific
The file system is UFS. What do you mean use it with 110%?
More information about the freebsd-questions