Hi,
I'm going to move my 5 ESX hosts from a vCenter 4.0 to a vCenter 4.1. This means a fresh Windows OS 64 bit install on the same physical server as 4.0. I don't care to start over on a new vCenter database, and have setup a VM for this.
So my question is: can I disconnect the 5 hosts keeping the VMs running (now on standalone ESX hosts and of course no vMotion etc.), reinstall the physical server with vCenter 4.1, and then connect all 5 hosts again still with all VMs running? Any caveats I should consider other than I need to upgrade the hosts when they have been moved to vCenter 4.1?
Hi
So my question is: can I disconnect the 5 hosts keeping the VMs running (now on standalone ESX hosts and of course no vMotion etc.),
Yes
reinstall the physical server with vCenter 4.1, and then connect all 5 hosts again still with all VMs running?
Yes
Any caveats I should consider other than I need to upgrade the hosts when they have been moved to vCenter 4.1?
If you start with new DB you will loos some of the settings such as :
after hosts upgrade, upgrade vmware tools on VM's
Hello lyngsie08
What is your DB?
Process goes as upgarading vcenter server first and then the host.On upgrading vcenter server,never try to change any settings on host/VM by connecting your vSphere client directly to host...
Regards
Deemee1988
Hi
So my question is: can I disconnect the 5 hosts keeping the VMs running (now on standalone ESX hosts and of course no vMotion etc.),
Yes
reinstall the physical server with vCenter 4.1, and then connect all 5 hosts again still with all VMs running?
Yes
Any caveats I should consider other than I need to upgrade the hosts when they have been moved to vCenter 4.1?
If you start with new DB you will loos some of the settings such as :
after hosts upgrade, upgrade vmware tools on VM's
Thanks for both replies.
I use a SQL 2005 Std. DB, and considering all the settings I have to set again using a new DB, I'm now considering reusing the DB
So when I install vCenter 4.1 is it possible to point to an existing database, even though it holds information that is no usable right away (i.e. the 5 ESX hosts has not been connected yet).
Hi
I use a SQL 2005 Std. DB, and considering all the settings I have to set again using a new DB, I'm now considering reusing the DB
good choice
So when I install vCenter 4.1 is it possible to point to an existing database, even though it holds information that is no usable right away (i.e. the 5 ESX hosts has not been connected yet).
Yes, it is possible, before installation you have to configure ODBC on OS which will point out to old DB.
Where do you have vCenter DB running - is it on this same server where vCenter is installed or it's a separate server ?
Fortunately the DB is on a separate server only serving this single vCenter DB, so it seems I'm good to go later today
I truly appreciate this community and the clear and fast answers. Thanks.
Fortunately the DB is on a separate server only serving this single vCenter DB, so it seems I'm good to go later today
goodie
Just follow upgrade procedure and basically after upgrade you will have to do only simple post migration tasks (no need to reconenct hosts, restore certificates etc)