Hi Everyone,

I am encountering the following issue on a single instance hyper-converged 4.2 setup.

The following fio test was done:

fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=test --bs=4k --iodepth=64 --size=4G --readwrite=randwrite

The results are very poor doing the test inside of a vm with a prealocated disk on the ssd store: ~2k IOPS

Same test done on the oVirt node directly on the mounted ssd_lvm: ~30k IOPS

Same test done, this time on the gluster mount path: ~20K IOPS

What could be the issue that the vms have this slow hdd performance ( 2k on ssd !! )?

Thank you very much !

Best regards, Leo David