Hi I am trying to backup a volume which has size 347G. So I thought to use lvm2. So I created a volumeby
lvcreate -n test --size 348G my-volume I thought I would be giving myself an extra Gigabyte there :). then i did mkfs.ext3 -m0 /dev/my-volume/test then when I mounted the device mount /dev/my-volume/test /mnt then df -h only shows 343G instead of 348G. Note that tune2fs shows that I have indeed have 0 reserved blocks (ie mkfs.ext3 -mo /dev/my-volume/test is equivalent to tune2fs -m0 /dev/my-volume/test So my question is where have those extra 5G gone to? I need to back up a 347. So I had tp set it up with 353G to have the correct size. Can anyone explain this to me? What kind of formula to use to calculate how much space I will need in advance for creating the ext3 or in the future ext4 file system? 5G seems like a lot. Thanks, Mitchell Laks -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20130214191533.ga19...@earthlink.net
