200gb hard drive?
ryallsd at datasphereweb.com
Thu Nov 20 12:56:50 PST 2003
> I have installed a new hard drive to my FreeBSD system. Hard
> drive is 200gb
> when I fdisk and disklabel the output of "df -h" is something
> like that:
> /dev/ad1s1e 183G 2.0K 169G 0% /disk2
> Here as you can see I can only use 169GB of it. Bios has seen
> my harddrive
> as 190GB also dmesg output is like that:
> ad1: 190782MB <WDC WD2000JB-00DUA3> [387621/16/63] at
> ata0-slave UDMA100
> My question is what happened to 190-169 gb or maybe after
> some filesystem
> information reservation what happened to 183-169 gb?
> By the way I have used default newfs parameters -b 16384 -f
> 2048. I don't
> know if that helps...
When manufacturers talk about drive size, they use base 10. When computer
report drive size, they use base 2. So, if you divide 200,000,000 bytes by
( 1024 * 1024 ), you get roughly 190gig in binary, so off the bat you lose
10gigs of space due to marketspeak translation.
FreeBSD reserves 8% for something (I forget what), so that brings it down to
174gig. As for the last 5gig, dunno, sorry.
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