With the advent of VMFS5 I have a few questions so maybe you guys can help?
I just want to be sure that the old VM's (created on VMFS3 on ESX3.x/4) hosts will be OK on the VMFS6 datastores?
YES to all your questions
only "issue" with VMFS 5 at the moment - you can only read it with ESXi.
VMFS 3 can also be read with Linux which is a major advantage in case you come across corrupt or partial corrupt VMFS volumes
LOL! I think I was interupted during the post and submitted by mistake... Sorry about that.
VM's running hardware version 4 and whatever tools they happen to be running will run on VMFS 5?
yes - but doing so does not really make sense - because you will not get any of the advantages of the newer virtual hardware
Right. I just have close to 400 VM's and it will take time to get to all of them. I'll most likely just move everything to hardware version 8 once all hosts and VMFS volumes are updated....
I did your first 3 first question in the last 2 week and they all work. "VMFS3 and move it to VMFS5:" you will have the possibility to upgrade virtual hardware with a right click on the VM
I never try the last one VMFS3 to VMFS2.
I think you write a mistake " will be OK on the VMFS6 datastores?" maybe you want to write VMFS5