Hmm…. an update to 5.5 already!
Release notes here:
https://www.vmware.com/support/vsphere5/doc/vsphere-vcenter-server-550a-release-notes.html
If you’re using the vCenter Server Appliance (vCSA) and have already upgraded from 5.1 to 5.5, then updating the appliance is a very simple process if your vCSA is able to connect out to the internet:
Note: this update process will reboot your vCSA so you will lose connectivity to your vCenter Server! Be warned!
1. Log into the admin page of the vCSA – https://ip-address:5480 using the root account (default password is ‘vmware’)
2. Select the Update tab and click Check Updates under the Status section
3. Select Install Updates and click OK to start the update process
5. Once update is complete (for me it was about 10mins – dependent on size of DB), reboot the vCSA to initialise the new update.
6. Click the System tab and click the Reboot button.
Once rebooted, the vCenter Server should be assessible again.
If you are not connected to the internet, then you can download the update ISO file from your ‘My VMware’ portal.
Once downloaded (about 1.6GB), mount the ISO file to the vCSA VM and navigate to the Settings section under Update. Select Use CDROM Updates as the Update Repository, click Save Settings and then follow the instructions outlined above from Step 2.
The Virtual Unknown 