On Wed, Jul 8, 2020 at 4:56 PM Jason Dillaman <jdillama@redhat.com> wrote:
On Wed, Jul 8, 2020 at 3:28 PM Void Star Nill <void.star.nill@gmail.com> wrote:
Hello,
My understanding is that the time to format an RBD volume is not
dependent
on its size as the RBD volumes are thin provisioned. Is this correct?
For example, formatting a 1G volume should take almost the same time as formatting a 1TB volume - although accounting for differences in latencies due to load on the Ceph cluster. Is that a fair assumption?
Yes, that is a fair comparison when creating the RBD image. However, a format operation might initialize and discard extents on the disk, so a larger disk will take longer to format.
Thanks for the response Jason. Could you please explain a bit more on the the format operation? Is there a relative time that we can determine based on the volume size? Thanks Shridhar
Thanks, Shridhar _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io
-- Jason