Brandon Riley of virtual insanity comments:
NTP. How can I explain it? I’ll take you frame by frame it.
I’m sure that no readers of Virtual Insanity would ever neglect to setup NTP properly on every single ESXi host. But occasionally, our NTP source hiccups, or something happens to skew the time. Recently I found a host with the NTP service stopped.
Why? No idea really. Maybe it was stopped while someone was troubleshooting. Maybe it just crashed. But it will cause issues with backups, and with applications running during backups or vMotions.
NTP is great. Until it breaks. Do you know how to fix some of the stranger problems with NTP in a virtual environment?
Read more at: You Down With NTP?