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Gr4cchus
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Enthusiast

vSphere Migration: 10g Cold migrations slow

I have read alot of conflicting information regarding this topic anywhere from internal architecture design, misconfiguration, all the way to vmware sabotage. I created 2 vmfs single drive ssd/nvme datastores on two hosts within a cluster. The two nodes main link is 1g with management service enabled. Their second link is 10g with vmotion, provisioning, and vSAN enabled. Default tcp/ip set. However the 10g links are on another subnet with another gateway so when I ran the migration I thought because of that it would default to the management link. Except when I checked the network monitoring data it showed it utilizing the 10g link however the speeds were quite pitiful 80MBs, about 1/4th of what it could be. During a vMotion the drive combo hits around 500-1000MBs. Thought maybe it had something todo with NIOC so i disabled that on the vDS but no change. Not sure what todo now.

heres a network view, last spike was a cold migrationnode 1:pastedImage_1.png

node2:pastedImage_0.png

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