[ovirt-users] Wishlist - Mix gluster and local storage in same data center

[Alex Crow]

There are many things that tie a VM to a host, like USB device 
passthrough, but that's not reason to remove all such support from 
oVirt, is it? In my case, I'd like to mix iSCSI and local storage, 
because I have a couple of systems that need higher disk I/O that I'd 
like to put on my shared storage. The two systems are redundant to each 
other, so that is taken care of at a different layer. The two systems 
don't however consume all the resources of the host machines (lots of 
CPU and RAM available). I'd like to make them nodes in my oVirt cluster, 
so those resources can be used for other VMs (that are on shared storage 
for that level of HA), but I can't do that (at least as far as I know, 
with oVirt 3.5). I thought that had been mentioned as a feature for 3.6, 
but I don't see it anywhere in the features or release notes, so I 
assume that functionality is still not available.

One thing that would render this whole issue moot is being able to use 
local fast storage on the hypervisor hosts, ie SSD or 3D-Xpoint drives 
in LVM-Cache to accelerate IOPS on shared storage.

The underlying stuff is already there, and it works. I've been using LVM 
cache for while in Centos 7.

Geting this to work in oVirt would be a killer feature.

Alex
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