filesystem size does not equal free space

2012-11-21 Thread Rick Miller
Hi All,

I install FreeBSD 8.3-R on a DL360 G8 with two disk volumes, the 2nd
of which is 3TB.  The fdisk partition editor shows the disk geometry
as 812160 cyl/255 heads/32 sectors = 6627225600 sectors (3235950MB).
sysinstall creates a slice on the 3TB volume that uses the entire
disk.  However, when the filesystem is labelled and mounted, it is
slightly over 1TB in size.  Am I correct in assuming that it's only
1TB because the disk geometry is greater than what is supported by
sysinstall and/or bsdlabel?

-- 
Take care
Rick Miller
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Re: filesystem size does not equal free space

2012-11-21 Thread Warren Block

On Wed, 21 Nov 2012, Rick Miller wrote:


I install FreeBSD 8.3-R on a DL360 G8 with two disk volumes, the 2nd
of which is 3TB.  The fdisk partition editor shows the disk geometry
as 812160 cyl/255 heads/32 sectors = 6627225600 sectors (3235950MB).
sysinstall creates a slice on the 3TB volume that uses the entire
disk.  However, when the filesystem is labelled and mounted, it is
slightly over 1TB in size.  Am I correct in assuming that it's only
1TB because the disk geometry is greater than what is supported by
sysinstall and/or bsdlabel?


It's an MBR limitation, I think.  Use GPT, which will also make 
alignment to 4K blocks easier.

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