Hi,
we're running two clusters (8.3.3, subscription repo) which are connected via 10gbe. Migration between both nodes works quite fast (300-400MB/s, most probably ceph on the receiving end is limiting).
All VM disks are stored on ceph (source and target) and have the discard option set.
However the migration seems to not use the benefits of thin provisioning, i.e. disks that are big in maximum size but have only little space used (e.g. a 500GiB vhd with 20GiB space used) will be...
Read more
we're running two clusters (8.3.3, subscription repo) which are connected via 10gbe. Migration between both nodes works quite fast (300-400MB/s, most probably ceph on the receiving end is limiting).
All VM disks are stored on ceph (source and target) and have the discard option set.
However the migration seems to not use the benefits of thin provisioning, i.e. disks that are big in maximum size but have only little space used (e.g. a 500GiB vhd with 20GiB space used) will be...
Read more