My current setup is with 10 nodes with ample space on spinning disks, and
20 nodes with smaller SSD disks.
I would like my workflow to be that all data is initially indexed on the
SSD nodes, after 10 days is reallocated to the spinning disks, after a
further 10 days the index is closed, and
Check what curator is doing with your index. Its probably fiddling with
index.routing.allocation.include and index.routing.allocation.exclude.
When you create the new index just set it pick up the ssd tag. You'll have
to make sure that curator knows how to strip that tag when the time comes
to