We are currently running two ESX 3.0 hosts using local storage, an Openfiler NAS (NFS) and a Western Digital NAS (NFS).
I would like to upgrade to ESX 4.1 with two hosts and a single shared storage device that would use either NFS or iSCSI. With this setup we would at the minimum get vMotion, HA, and vDR. I would like an enterprise level device (not like what we have) but that is cost effective. In the past I have worked with Dell PowerVault MD SANs but these are out of budget I think and also overkill for our environment I think.
Storage always seems to be the most difficult part to pick for a VMware environment. I would like to get away with SATA for money reasons but also don't want a bottleneck. We are currently running 12 VMs ranging in utilization and access.We currently have Exchange (this might move away), some SQL, IIS, DCs, etc. We have say 30 employees internally.
I am considering an Iomega StorCenter ix12-300r 4TB which I have used before and was nice. but something even cheaper would be nice.
http://go.iomega.com/en-us/products/network-storage-rack/ix12-300r/ix12-300r/?partner=4760#overviewItem_tab
If I do end up going with this should I use NFS or iSCSI?