IN SHORT:
I have a large Windows 2012 R2 VM (11TB: C: 200gb D: 10.8tb) which has noticeable deteriorated performances after migrating to ESXi 6.0U2 including:
delays, unresponsive, dragging, network shared folder connectivity delay like it fell asleep etc.
CPU, Memory utilization and Disk space appears to be normal. Please see below VMware event logs attached.
For example, trying to open apps like event viewer, and experience delays in just opening Control panel or any other window on its desktop screen. Takes 5 seconds to respond to mouse action. Delays trying to access files from client to shared folder on Windows Server in question. Basically, click and wait. It's like Server was asleep and when you click on shared folder takes a few seconds to wake up. Reboot fixes the issue temporarily then it returns again.
WHAT CHANGED:
Moved VM from 5.5 to 6.0U2 using simple SCP command.
It was moved from HP G7 blade to HP G8 DL360p Server (firmware up to date).
Increased CPU 4 to 10 cores. Increased Memory to 24gb.
After move encountered major Network issues (Network down) until upgraded VMware Tools. Now status says RUNNING (CURRENT) Tools
Upgraded to latest VMware tools which resolved network NIC connectivity issues. VMware tools status was (out of date) prior.
Upgraded HW to version 11.
Updated Windows: ran Windows update several times.
The VM is now showing RUNNING (CURRENT) VMWARE TOOLS but event log says something different below.
Any ideas and advise is greatly appreciated.
Thanks in advance.
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