I am not sure if the is the correct form for this but maybe someone can direct me in the right direction.
I
have four Nexis pros (7.6.1) under one system director and a Dell S4810
switch.
When running a path diag the read/write speeds are vastly different.
The test is two minute NEXIS read/write unlimited @4096
The settings on the Myricom card are Avid spec.
Flow control: On/ Interrupt Coalescing Delay: 2/ Receive Buffers: 2048/ MTU: 1500/ RSS: Disabled (enabled on Windows 10)
I have ran the tests on two different ports on the switch. One with flow control RX on TX off. One with RX off TX off.
The test ran on a z420 windows 7 AMC 8.5.3 with Myricom card (32GB RAM) Read: 276 Write: 630
This computer on the RX off TX off Read: 280 Write: 620
The test ran on a z600 windows 7 AMC 7.0.6 with Myricom card (24GB RAM) Read: 240 Write: 517
This computer on the RX off TX off Read: 244 Write: 515
The test ran on a z600 windows 10 AMC 7.0.6 with Myricom card (24GB RAM) Read: 352 Write: 540
This computer on the
RX off TX off Read: 295 Write: 540
The test ran on a z820 windows 10 AMC 7.0.6 with Myricom card (32GB RAM) Read: 497 Write: 574
This is RX off TX off
The test ran on a trash can mac 10.11.6 with Myricom card (64GB RAM) Read: 708 Write: 782
This is RX off TX off
Cards have been swapped from the mac to the windows machines but that does not change the read speeds on the windows machines.
I
understand that they should not be identical, both read/write and computer to computer, but there seems to be
something seriously wrong with how the windows machines are dealing with
the read speeds.
Any help or advice is greatly appreciated.
Greg