Hello everyone,
I think it's my first post here. We are running vSphere 4 (ESXi) on 2 hosts. I'm trying to setup Windows cluster of 2 virtual machines residing on separate hosts. I have read VMware's guide on this whole topic and it says you must use Raw Disk Mapping for cluster across boxes. As far as I understand I would need spare physical disks to use the RDM. Currently we just have all the disks setup in a RAID and all virtual disks (OS and data) reside on it. So I went ahead and created 2 virtual machines running on separate ESXi hosts. I then created 2 virtual disks (Quorum and Data) and added them to both virtual machines. Here are the options I used for these 2 disks...
Support clustering features like Fault Tolerance
SCSI 1:0 for Quorum and SCSI 2:0 for Data
Changed SCSI bus sharing to Physical for both
Added disk.locking= "false" in config file for both machines
I have successfully setup the Windows cluster. I did a lot of testing and it's working the way it should. How come? if the requirement is to use RDM then at what point I'm going to have trouble with this setup? Is there a performance issue or any other issue I'm going to encounter eventually?
Thanks!
