@jerry1333 said:
There is nothing else on that host and this is only host in pool but it's using 30% of cpu all the time?
it's not using 30% of CPU, you see a graph of cumulated (switch is on) core consumption of your 32 cores.
never switch this on. it adds up like that : 32x1%=32%, wrongfully letting you think you are at 30%ish CPU usage.
Different use cases: Ceph is better with more hosts (at least 6 or 7 minimum) while XOSTOR is better between 3 to 7/8.
We might have better Ceph support in the future for large clusters.