AIO slow, network stability issues? Totally confused

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crazyj

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Nov 19, 2015
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Maybe this is a networking / ESXI question more than a napp-it AIO question, but I thought I'd start here just in case someone with a similar installation to mine has seen this.

I'm running an AIO setup on ESXi 6.7. SMB shares to windows clients, NFS shared internally between VMs. Occasionally, and quite often, a large file transfer will cause the mapped drives to become unresponsive. I end up going through a series of reboot cycles of the VMs, host, switch and router to be able to restore normal operation. It has me losing my mind. I just don't understand why that could happen. I have a suspicion that it could be related to my network setup, but it seems stable in most other situations.

ESXi is set to NIC team over the 2 physical ports, using "IP Hash" as the method. VLANs are set up at the vSwtich, the physical switch, and my Tomato router. Switch is set with a static LAG, and the two links to the ESXi server are trunked/teamed.
 

modder man

Active Member
Jan 19, 2015
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may or may not be the issue but you are not likely to gain much in teaming NIC's on ESXi. Likely just adding more complication.
 

crazyj

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Nov 19, 2015
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I've heard similar from other folks. I suppose running multiple VLANs can be done over a single cat5e. Is there any tools that anyone knows of that a simple man can employ to determine network problems on an AIO esxi box?
 

modder man

Active Member
Jan 19, 2015
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you can use multiple cables, let the host handle the traffic natively. There is no need to configre LAG's or LACP
 

crazyj

Member
Nov 19, 2015
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Well, as a follow up, I can't say I've had any problems since moving away from LAGs. My remaining issues are speed related. On ESXi 5.5 I was getting 100-120 MB/s, where on ESXI 6.7 I top out at 80.