ESX 3.5 Update 4 problems of performance/guest chef

We have recently upgraded to 4 upgrade and now a week later I noticed some drastic performance problems in our VMs. VMs (Win2k3-64 bit, 2 K 8-64-bit, XP Pro) that used to take about a minute to start now take 5 minutes. Operation inside these machines is extremely slow as well; Connect simply another takes a few minutes and each action takes some time. What is curious, it's that there is no visible errors in newspapers (VC and Windows) and performance counters all look good. Also, if I 'Export' a virtual machine of my ESX infrastructure to a 'free' ESXi host I use for testing, the virtual machine performs very well.

We are running ESX3.5 w / VirtualCenter (separate physical machine) on 3 - Quad Core 3 GHz hosts with 24 GB of Ram each connected to a FIbre Channel SAN.

Someone at - it another experinced no degradation after the upgrade to 4 updated? Help, please.

I had similar problems in my configuration of lab. Turns out that shares that have been granted for VMS and resource pools have been completely stripped. As a temporary workaround, I just removed all the resource pools disabling the DRS on my test group.

Another question, I lived after the upgrade to U4, is that the machine virtual networks randomly started showing very high latency from time to time (for example: a physical workstation I ping to a virtual machine that is on the same gigabit switch - latencies range from 10 ms and ms 2000!). I could not determine the exact circumstances in which this occurs, but it certainly has a devastating effect on the boot time of my machines. I think of messing with the memory of service console & Reservations CPU + Crescent "system resources" one little solved the issue but I'm not sure 100%, which was the root cause of (this was a common solution to VM network latencies in previous versions of ESX). In the meantime, I also upgraded my VMware Tools for version U4 (which has a new vmxnet driver) and I didn't notice the problem again since. Again, I'm not sure that this is the cause first and solved the problem, because of its random occurrence.

Tags: VMware

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