Hi everybody,
a while ago we set up a three node Proxmox cluster and as storage backend we use the built in ceph features.
After a while we noticed a strong decreasing of I/O Perfomance in the VMs when it comes to writes of small files.
Writing a single big file at once seems to perform quit normal, also does reading in all cases.
When moving complete VM Disks from Ceph to another external storage and back also performs very good, no problems here.
A concrete test case:
Having a test VM...
Read more
a while ago we set up a three node Proxmox cluster and as storage backend we use the built in ceph features.
After a while we noticed a strong decreasing of I/O Perfomance in the VMs when it comes to writes of small files.
Writing a single big file at once seems to perform quit normal, also does reading in all cases.
When moving complete VM Disks from Ceph to another external storage and back also performs very good, no problems here.
A concrete test case:
Having a test VM...
Read more