Multiple-NIC vMotion tunning 2x 40Gbps

Because for Monster SAP HANA VM (1-3 TB RAM) I tuned several AdvSystemSettings.

In the end I was able to speedup vMotion 4x times and utilize 2x flow with 40 Gbps – VIC 1340 with PE.

Inspiration was:

• Multiple-NIC vMotion in vSphere (2007467)
• VMworld 2017 – SER1494BU Encrypted vMotion
• vMotion multi-threading and other tuning settings
• How to Tune vMotion for Lower Migration Times?

The @TietoCorp architect who has implemented this a year ago is @danielmicanek It would be great to meet and chat together if he will attend the VMUG in Prague next week.

— David Pasek (@david_pasek) October 22, 2019

It is in production from 04/2018, My tuned final settings is:

AdvSystemSettings	Default	Tunning	Desc
Migrate.VMotionStreamHelpers	0	8	Number of helpers to allocate for VMotion streams
Net.NetNetqTxPackKpps	300	600	Max TX queue load (in thousand packet per second) to allow packing on the corresponding RX queue
Net.NetNetqTxUnpackKpps	600	1200	Threshold (in thousand packet per second) for TX queue load to trigger unpacking of the corresponding RX queue
Net.MaxNetifTxQueueLen	2000	10000	Maximum length of the Tx queue for the physical NICs – toto stačí pro urychlení VM komunikace