Best Value Extend Storage with XenServer
We've been running XenServer for a couple of years now, have in total 2 XenServers; one running 4 VMs and the other running 5 VMs - both have been rock solid, run flawlessly and for free using the Free Edition. :cool:
All storage is on the local machine itself; no fancy SAN networks, NAS units, etc.... yet! One VM is the main file server and we're getting uncomfortably close to filling up so its time to look at additional storage.
Now, fancy SAN network would be lurvely, but I believe out of our price range (have been told budget is going to be laughable this year). So I've finally gotten round to looking at iSCSI and understanding it now and been playing around with FreeNAS and hooking up a 2008 Server to it on some test machines here.
I'm looking at possibly getting something like a Netgear ReadyNAS 3200 (or maybe just a 2100) and using iSCSI to attach to it to give us additional storage for the next lot of students coming this year and moving some other shares over to it. The question would be; would I be better hooking the NAS unit via iSCSI on the Virtual Machine itself? Or just adding it as 'New Storage' on the XenServer Host itself using iSCSI which would then be just assigned to a VM as storage as required?. I'd imagine the latter, but I'm just clearing up the scenerio in my mind.
Would I also be right in understanding that if I'm going to access this NAS from multiple servers (unlikely), then this is entering SAN technology which would require it having its own seperate switch and links to the servers instead of just sitting on the main core?
Would these ReadyNAS units be up to the job? Read good things so far - wouldn't use it to host VMs though at this stage.
Thanks in advance