What's a good network file server for many small ephemeral files?

<!-- SC_OFF --><div class="md"><p>I have several servers that need to share about 9 million files that take about 3TB. Many of the files exists for only seconds. GlusterFS is currently being used, but it&#39;s not performing well. There&#39;s a rebalance that has been going on for more than 2 months and with certain folders out of sync they can&#39;t be deleted and that causes other problems. Also, load has been getting very high lately [ &gt;100 at times ]. We liked the redundancy it offers since it&#39;s in Azure and servers sometimes reboot unexpectedly. What&#39;s a better solution for a redundant file server? I admin the best decision would be to not use a file server, but the programmers won&#39;t be able to re-code this multi-tiered app in time. Thanks in advance for you input.</p> </div><!-- SC_ON --> submitted by