<div dir="ltr">Based on your message, it sounds like your total usable capacity requirement is around <1TB. With a modern SSD, you'll get something like 40k theoretical IOPs for 4k I/O size.<div><br></div><div>You don't mention budget. What is your budget? You mention "4MB operations", where is that requirement coming from?</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Apr 4, 2018 at 12:41 PM, Vincent Royer <span dir="ltr"><<a href="mailto:vincent@epicenergy.ca" target="_blank">vincent@epicenergy.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi, </div><div><br></div><div>Trying to make the most of a limited budget. I need fast I/O for operations under 4MB, and high availability of VMs in an Ovirt cluster. </div><div><br></div><div>I Have 3 nodes running Ovirt and want to rebuild them with hardware for converging storage. </div><div><br></div><div>Should I use 2 960GB SSDs in RAID1 in each node, replica 3?</div><div><br></div><div>Or can I get away with 1 larger SSD per node, JBOD, replica 3?</div><div><br></div><div>Is a flash-backed Raid required for JBOD, and should it be 1gb, 2, or 4gb flash?</div><div><br></div><div>Storage network will be 10gbe. </div><div><br></div><div>Enterprise SSDs and Flash-backed raid is very expensive, so I want to ensure the investment will provide best value in terms of capacity, performance, and availability. </div><div><br></div><div>Thanks,</div><div><br></div><div>Vincent</div>
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