On Wed, Jul 18, 2018 at 09:25:37PM +0800, runappz wrote: > lvcreate --type raid10 -m 1 -i 2 -l 24576 pve # created lvol1 > lvcreate --type raid10 -m 1 -i 2 -l 8 pve # created lvol2 > lvcreate --type raid10 -m 1 -i 2 -l 8 pve # created lvol3 > > lvcreate --type raid10 -m 1 -i 2 -l 8 pve # created lvol4 > lvcreate --type raid10 -m 1 -l 8 pve # created lvol5 > > The default LE size was 4MiB, so that I expect lvol1 to be 2*4*24576 > MiB, while other 4 are all 2*4*8 MiB. However, I only got 4*24576 MiB > and 4*8 MiB partitions. I tried to run `mkfs.ext4` on lvol3 and mount > it. `df` shows clearly that lvol3 is a 32MiB volume. The -l option is the final size of the LV, not the space used on each device for each stripe or mirror. So when you say -l 8, it means the LV has 8 usable extents, so it is supposed to be 32MiB. It doesn't matter how many stripes or mirrors you have. -- Douglas Paul _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
