HI,
I’m currently having an issue with my environment and I’m not sure where is my problem exactly. The problem is with read/write performance from my 2 VMWare servers to my TrueNAS Scale NAS.
As I said, I have 2 VMWare Server both connected directly via 10Gb FCoE to my TrueNAS Scale server. But when I move a VM, to a datastore on my NAS, it’s very slow. And when I say slow, it slow to often having an error and not completing the transfert.
When I test the network with iperf3, I have good result. I have 9.69GB/s. But when I monitor the move/copy of a WM, it’s much slower, I cannot see better than 10 Mbits/s.
I tried a datastore configured with NFS or iSCSI, same result.
I have dedicated interfaces on FC to connect ESX and NAS. All FC interfaces have an MTU of 9000
When I copy file from CIFS or NFS from my Windows machine (with my 1Gb interface) I can see copy of 150mb/sec, so the bottleneck is not the disk.
Really not sure where the issue is; on vmware or on my Scale server.
Any ideas ?
I’m currently having an issue with my environment and I’m not sure where is my problem exactly. The problem is with read/write performance from my 2 VMWare servers to my TrueNAS Scale NAS.
As I said, I have 2 VMWare Server both connected directly via 10Gb FCoE to my TrueNAS Scale server. But when I move a VM, to a datastore on my NAS, it’s very slow. And when I say slow, it slow to often having an error and not completing the transfert.
When I test the network with iperf3, I have good result. I have 9.69GB/s. But when I monitor the move/copy of a WM, it’s much slower, I cannot see better than 10 Mbits/s.
I tried a datastore configured with NFS or iSCSI, same result.
I have dedicated interfaces on FC to connect ESX and NAS. All FC interfaces have an MTU of 9000
When I copy file from CIFS or NFS from my Windows machine (with my 1Gb interface) I can see copy of 150mb/sec, so the bottleneck is not the disk.
Really not sure where the issue is; on vmware or on my Scale server.
Any ideas ?