Tuesday, August 21, 2012

Windows Time Sync with Active Directory

Weird, but found Windows Time service missing from several servers.  Not sure how this could happen, but below is the article that helped me put the services back.

Basically, just unregister then re-register the service and start it again.

net stop w32time
w32tm /unregister
w32tm /register
net start w32time

Then, check registry HKLM\SYSTEM\CurrentControlSet\Services\W32Time\Parameters for NT5DS "type" entry.

Reference:
http://tigermatt.wordpress.com/2009/08/01/windows-time-for-active-directory/

Friday, August 10, 2012

Tuesday, August 7, 2012

vShere 5 vCPU

Built my first VM on ESXi 5 hosts and thought this was interesting.  When  you configure the vCPU count now, you can specify # of virtual sockets and # of cores per vSocket.  Basically, vCPU = #sockets x # cores and there is no performance difference from what I been reading.  The only technical advantage I could find is that you can add virtual sockets to a running VM.

The purpose of this new way to configure vCPU seems to be for licensing trickery as stated in the reference article below...

Reference:
http://kendrickcoleman.com/index.php/Tech-Blog/vsphere-5-hardware-version-8-a-new-vcpu-config-for-licensing-trickery.html