Hello, we have a pool of 3 hosts with XOSTOR and we are having various performance issues related to tasks like start/stop VMs, VM migrations or similar which according to Vates support are down to the task waiting for Sr.scan to be completed.
I can see sr.scan running all the time and some of them takes around 4 / 5 minutes...
the XOSTOR storage is around 27Tb and store about 107 VMs base disk + same amount of snapshots + what I think is the current changes for each of them for a total of 348 disks.
What your environments look likes? how long your sr.scans takes and most importantly do you have problems at start/stopping and migrating VMs?
For instance when we migrate VMs, the VMs freeze for about 3 / 4 minutes just before re-attaching the VDI on the target host and according to support is due to the sr.scan.