Re: [ovirt-users] Best Storage Option: iSCSI/NFS/GlusterFS?

On Sat, Mar 25, 2017 at 9:20 AM, Charles Tassell <ctassell(a)gmail.com&gt; wrote: NFS 4.2 is better than NFS 3 in the sense that you'll get DISCARD support, which is nice. Gluster probably requires 3 servers. In most cases, I don't think people see the difference in performance between NFS and iSCSI. The theory is that block storage is faster, but in practice, most don't get to those limits where it matters really. LCAP many times (especially on NFS) does not provide extra bandwidth, as the (single) NFS connection tends to be sticky to a single physical link. It's one of the reasons I personally prefer iSCSI with multipathing. A single controller is not very reliable. If reliability is your primary concern, I suggest ensuring there is no single point of failure - or at least you are aware of all of them (does the storage server have redundant power supply? to two power sources? Of course in some scenarios it's an overkill and perhaps not practical, but you should be aware of your weak spots). I'd stick with what you are most comfortable managing - creating, backing up, extending, verifying health, etc. Y.