***If this is for some reason, not the correct place/forum to start such a thread, I would be glad if you could point me somewhere where this fits in better***
I am working now for about a year in my company and I am responsable for a our virtualization environment which was created by my predecessor. I am currently thinking about updating everything to 6.7 and may need some opinions on that. Before asking questions I want to share some information about the environment:
We currently have two Clusters consisting of 1 vCenter Server Appliance running on a host of the cluster and 3 ESXI-Hosts in each cluster. Everything is on Version 6.0.0. Additionally we have 3 stand-alone ESXIs on Version 6.5.0. But as they are standalone, I am not that concerned about updating them.
All in all our environment looks sime kind of like this:
All of the ESXIs have local storage attached to a RAID Controller and Running in RAID 10. In fact, here is an image of the Hardware used:
From me research this hardware is actually not supported by VMWare, at least I did not find everything on https://www.vmware.com/resources/compatibility/search.php?deviceCategory=io&details=1&partner=221&releases=369,408,367,338,276,275,274,273&page=1&display_interval=10&sortColumn=Partner&sortOrder=Asc. CPU seems fine, RAID Controller is definitely not supported by VMWare. I was not able to find a list of supported Mainboards, RAM and HDDs. Whats not on the image is the SSD which holds the ESXI OS.
Regarding network access, each Host has 4 1GB NICs, 3 of them are in our development network and 1 is in a management network which consists of a RIS/WDS-Server to get some images. I am currently not sure if the 3 NICs are some kind of teamed/trunked, the config says "Load Balancing by Port-ID"?:
Besides the Hardware and ESXI Versions there are the two vCenter Server Appliances and one Platform Service Controller running as VMs on the Hosts. I think the two vCSAs are running in "Link Mode" as I can see them both when loggin into the webinterface of one of them:
Also, what is probably notable, we have a Single-Sign-On running using our company domain.
Now, what I would like to do is:
- First, update the first vCenter to 6.7. As I read on https://www.vladan.fr/upgrading-vcsa-6-5-to-6-7/ this can be done by just installing a new 6.7 vCSA and during the wizard it will copy the config.
- My questions here are if I need to need something special as I have these two vCSAs in "Link mode" and if I still need the PSC afterwards (I think I read somewhere that it is not needed anymore in 6.7)
- After that I want to update the second one
- If that is succesfull, I want to upgrade one ESXI host after another. As we are cheap and dont have vMotion, I have to shut down the VMs for that.
- My question here is if it would be better to try to install 6.7 ontop of 6.0 or, my currently prefered Idea, to install 6.7 to a fresh SSD and switching them out?
- I know that I have to integrate the driver for our RAID-Controller into the ESXI Image. I have that done once before with 6.5 and assume that it will work similar with 6.7. But are there any other things that I probably have to think about?
- If the update process is done, I would like to think about some minor stuff like the NIC Teaming/Trunking and if it is good as it is or if I can enhance it.
- Any suggestions here?
- Also I would be glad for some other suggestions of "nice to have" features I should configure
Some minor information I want to mention: All of our Hosts are some kind of a Lab-Environment for our Development, so there is no VM that has to run 24/7 or which is production critical. I can shutdown any VM and the worst thing that happens is that 1 or 2 devs are complaining that they cant test their code. Also I have only about 10% of my worktime availiable for tasks regarding the virtualization environment. I know it could be in a better state but I was busy getting warm with my job first.
If there are any questions or suggestions I am will try to answer them asap. Also I can provide any more information anyone needs (as long as they are not confidential).
So far, thanks in advance,