They have 2 VMWare ESXi 5.5 hosts. Both hosts have local storage.
Both hosts also share two external, iSCSI, storage platforms. The two external are as follows:
Dell PowerEdge 2950 - running FNAS and presents as one 3.96TB LUN. This LUN is setup on both VMWare hosts and therefore VM's can move between the hosts as required
Dell PowerVault NF500 - running Windows Server 2008 R2 Enterprise
On the PowerVault server using Microsoft's iSCSI Software Target, they split a 2TB disk into two separate LUNs;
This LUN is presented to VMWare Host1:
This LUN is presented to VMWare Host2:
I would prefer to have the 2TB disk presented on one LUN and then use that as proper shared storage for VMWare hosts, rather than the way it is at present.
My question is, can I merge the two Virtual Disks without affecting the data within those Virtual Disks and then present that as one iSCSI LUN to the VMWare hosts?
Or will I need to backup everything on both LUNs, kill the Virtual Disks, reconfigure the Virtual Disks as one Virtual Disk and have that presented to the VMWare hosts?
Any guidance would be helpful