Bryn M. Reeves schrieb:
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Tomasz Chmielewski wrote:
Let's say I have a 500GB logical volume:
# lvs | grep san2_data
san2_data san1 -wi-a- 500.00G
fdisk will report a bigger number:
# fdisk -l /dev/san1/san2_data
Disk /dev/san1/san2_data: 536.8 GB, 536870912000 bytes
It's just units; the G in lvm's output signifies powers-of-two units,
wheras the GB reported by fdisk is in powers-of-ten (SI units).
See the lvm man pages for a description of the units supported (lower
case are SI, upper case are powers-of-two).
What lvm manual exactly? I didn't find anything about upper/lower case
units supported in "man lvcreate" or "man lvm". In fact, it didn't make
a difference here whether I used "g" or "G".
Of course, I could calculate it manually, but I'd rather have it done
automatically.
# lvcreate -L500g -n san2_data san1
Logical volume "san2_data" created
# fdisk -l /dev/san1/san2_data
Disk /dev/san1/san2_data: 536.8 GB, 536870912000 bytes
# lvcreate -L500G -n san2_data san1
Logical volume "san2_data" created
# fdisk -l /dev/san1/san2_data
Disk /dev/san1/san2_data: 536.8 GB, 536870912000 bytes
# lvm version
LVM version: 2.02.07 (2006-07-17)
Library version: 1.02.08 (2006-07-17)
Driver version: 4.11.0
This is on Debian Etch.
--
Tomasz Chmielewski
http://wpkg.org
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