On Sun, Mar 03, 2024 at 11:48:01AM -0000, beecdadd...@danwin1210.de wrote:
>
> disklabel -h sd3 shows this
>
> # /dev/rsd3c:
> type: SCSI
> disk: SCSI disk
> label: SR CRYPTO
> duid: some-number
> flags:
> bytes/sector: 512
> sectors/track: 63
> tracks/cylinder: 255
> sectors/cylinder: 16065
> cylinders: 31130
> total sectors: 500117600 # total bytes: 238.5G
> boundstart: 64
> boundend: 500117600
>
> 16 partitions:
> # size offset fstype [fsize bsize cpg]
> c: 238.5G 0 unused
> i: 238.5G 64 4.2BSD 4096 32768 26062 #
> /mnt/extssd
>
> but df -h shows that sd3i is of size 235G but only 223G is available, and
> the Used space is 4.0k.. SSD is new and I followed
>
A fileystem has meta data overhead. That space is not avalailable for
user files. Also, by default 5% of available space is reserved for
root only. That fraction is represented in available space. See
newfs(8).
-Otto
