I'd recommend running the vCenter Server Database Pre-Upgrade Checker first:
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2004286 If it reports errors, you might be better off building a new vCenter Server from scratch and importing your hosts into it. It involves a bit of work, but at least you'll have a clean install of vCenter 5.x. When we tried it, it reported major problems in our database, so we build a new 5.1 vCenter server from scratch. Importing your ESXi hosts into the new vCenter server is easy. I turned off HA during that process to be on the safe side. Cheers, Phil -- Phil Randal Infrastructure Engineer Hoople Ltd | Thorn Office Centre | Hereford HR2 6JT Tel: 01432 260415 | Email: [email protected]<mailto:[email protected]> From: [email protected] [mailto:[email protected]] On Behalf Of Melvin Backus Sent: 16 June 2014 16:24 To: [email protected] Subject: [NTSysADM] VMWare upgrade gotchas We're in the process of planning an upgrade from VMWare ESX 4.1 to 5.5. At this point it appears that our biggest challenge is going to be upgrading the vCenter server, but I was wondering if anyone had any specific things we should watch out for during the process. -- There are 10 kinds of people in the world... those who understand binary and those who don't. Hoople Ltd, Registered in England and Wales No. 7556595 Registered office: Plough Lane, Hereford, HR4 0LE "Any opinion expressed in this e-mail or any attached files are those of the individual and not necessarily those of Hoople Ltd. You should be aware that Hoople Ltd. monitors its email service. This e-mail and any attached files are confidential and intended solely for the use of the addressee. This communication may contain material protected by law from being passed on. If you are not the intended recipient and have received this e-mail in error, you are advised that any use, dissemination, forwarding, printing or copying of this e-mail is strictly prohibited. If you have received this e-mail in error please contact the sender immediately and destroy all copies of it."
