Re: Large hard disk confusion
On Sun, Feb 06, 2005 at 08:24:25AM -0600, Ron Johnson wrote:
> On Sun, 2005-02-06 at 10:44 +0100, Marcus Lundblad wrote:
> > On Sun, 6 Feb 2005, Brian Clark wrote:
> > > I just installed sarge on a 160 GB hard disk. Partitions are 2GB swap,
> > > 50 MB /boot, and the rest for /.
> > > ~$ df -ahT
> > > Filesystem Type Size Used Avail Use% Mounted on
> > > /dev/hda3 ext3 145G 230M 138G 1% /
> > > proc proc 0 0 0 - /proc
> > > devpts devpts 0 0 0 - /dev/pts
> > > tmpfs tmpfs 443M 0 443M 0% /dev/shm
> > > /dev/hda1 ext3 45M 9.3M 33M 23% /boot
> > > usbfs usbfs 0 0 0 - /proc/bus/usb
> > > My question is, why is hda3 only showing as 145 GB? Surely ext3 isn't
> > > taking up gigabytes worth of journal information?
> > I think it's common that "160 GB" means 160000000000 bytes when
> > manufactures defines harddrive space.
> > And 160 "real" GB is 201997680640
> 160 GiB = 171,798,691,840
> 160 GB = 160,000,000,000
> If OP would read the fine print on his hard drive, he would see
> that the manufacturer clearly specifies that GB == 1,000,000,000,
> i.e. 10^9, *not* 2^30.
Thank you very much, Ron et al.
Now that I understand that, which was embarrassing, I might as well
embarrass myself further.
It seems like I'm still missing some space somehow.
$ df -a --block-size=1000
Filesystem Type 1kB-blocks Used Available Use% Mounted on
/dev/hda3 ext3 155510408 262910 147347940 1% /
proc proc 0 0 0 - /proc
devpts devpts 0 0 0 - /dev/pts
tmpfs tmpfs 463561 0 463561 0% /dev/shm
/dev/hda1 ext3 46214 9659 34089 23% /boot
usbfs usbfs 0 0 0 - /proc/bus/usb
$ swapon -s
Filename Type Size Used Priority
/dev/hda2 partition 1951888 0 -1
proc isn't stored on the hard disk IIRC, and tmpfs is in memory, right?
(155510408 + 46214 + 1951888) * 1000 = 157,508,510,000
Where's the other 2,491,490,000?
--
Brian Clark
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