ANS,
Lustre on top of ZFS has to estimate capacities and it’s fairly off when
the OSTs are new and empty. As objects are written to OSTs and capacity is
consumed it gets the sizing of capacity more accurate. At the beginning
it’s so off that it appears to be an error.
What version are you
Thanks Jeff. Currently i am using
modinfo zfs | grep version
version:0.8.0-rc2
rhelversion:7.4
lfs --version
lfs 2.12.0
And this is a fresh install. So is there any other possibility to show the
complete zpool lun has been allocated for lustre alone.
Thanks,
ANS
On Tue, Jan 1,
Very forward versions...especially on ZFS.
You build OST volumes in a pool. If no other volumes are defined in a pool
then 100% of that pool will be available for the OST volume but the way ZFS
works the capacity doesn’t really belong to the OST volume until blocks are
allocated for writes. So
Thank you Jeff. I have created the lustre on ZFS freshly and no other is
having access to it. So when mounted it on client it is showing around 40TB
variation from the actual space.
So what could be the reason for this variation of the size.
Thanks,
ANS
On Tue, Jan 1, 2019 at 12:21 PM Jeff
