I'm working with StarWind Support directly on this one. They had me not use sync channels for iSCSI. It didn't make a huge difference, but the Microsoft DiskSpd tool is showing better performance when the files and block sizes are very large. There must be a lot of overhead for both iSCSI and CSVs f...

Creating multiple loopback sessions actually made it worse. Switching from failover to LQD didn't make a huge difference. Here are my test results. Control Test: VM on Local Storage http://careers.mabcommunity.org/share/Control.png Failover, One Loopback Connection http://careers.mabcommunity.org/sh...

There are three sessions to the targets, one local and two remote through each of the 10Gbps connections. The MPIO policy is failover, with the local target the primary and the others as standby. These servers are brand new and entirely unused, so there is no network bandwidth being used for anythin...

It is just for writing to the CSV (which is NTFS). But the owner node doesn't seem to make a difference. Reads happen at the expected speed, but writes are only 1/3 the speed of a non-CSV volume, no matter which node is the owner.

I just did another test. It's actually poor CSV performance, and only when accessing the CSV from the C:\ of the host. It's very strange. I connected the iSCSI volume directly to one of the hosts and copied a file to it. That came across at around 900 MB/s. When I add the volume to Cluster Shared Vo...

I've just installed VSAN on a two node Windows Server 2019 Hyper-V cluster. This is the trial version with the full GUI and feature set. The two servers have 2 x 1Gbps host network connection and two 10Gbps direct connections to each other. VSAN is set to replicate over the two 10Gbps connections an...