Most likely it’s due to time/timezone mismatch between the appliance and your local computer. The I/O Analyzer virtual appliance sets its system clock from its ESX/ESXi host at boot time and, in most installations, periodically thereafter. If the I/O Analyzer virtual appliance time is incorrect, check the ESX/ESXi host clock and timezone settings as well as the I/O Analyzer timezone setting.
- ESX/ESXi Host Clock Setting
To update the clock on an ESX/ESXi host:
- If possible, set the ESX/ESXi host to use an NTP server.
NTP can be configured from the vSphere Client in ESX/ESXi version 4.0 and later as described in
http://kb.vmware.com/kb/2012069 - If no NTP server is available, you can manually set the ESX/ESXi time using:
date -S MMDDhhmmYY; hwclock –systohc
(NOTE For ESXi, this must be in UTC.) - ESX Host Timezone Setting
ESX and ESXi behave differently regarding timezones:- ESXi does not support timezones, so the time must be in UTC. Setting it to a local time is likely to cause problems running I/O Analyzer.
- ESX does support timezones; thus for ESX hosts you should make sure the timezone is set correctly.
- I/O Analyzer Virtual Appliance Timezone Setting
To change the timezone setting in the I/O Analyzer virtual appliance, follow these steps:- 1 Within the vSphere Client, access the console of the I/O Analyzer virtual appliance.
- 2 Within the I/O Analyzer virtual appliance, right click on the desktop, select Fluxbox menu, then select Exit.
- 3 At the command prompt, type logout<Enter>.
- 4 In the welcome menu, select Set Timezone and follow the on-screen instructions.
- 5 Back at the I/O Analyzer virtual appliance console, log in to the appliance using the credentials username: root, password: vmware.
- 6 Verify that the clock on your local workstation (where you open your browser) matches the I/O Analyzer clock.
An easy way to do this is to connect to the I/O Analyzer virtual appliance through the web UI, click the TEST SCHEDULER button, click the Get Current Server Time button, then compare the date and time displayed there to the date and time on your local workstation.
Thanks,
Chien-Chia