<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta content="text/html;charset=UTF-8" http-equiv="Content-Type"></head><body ><div style='font-size:10pt;font-family:Verdana,Arial,Helvetica,sans-serif;'><div>Hi all!<br></div><div><br></div><div>I made GlusterFS volume based on few HDD at few servers and I wanted to add SSD based tiering. Write-back caching is problem for this case, because SSD are in only one server, so its failure results in failure of all tier and data loss.<br>I want to disable write-back caching and write from client nodes directly to HDD volume (cold tier). How can I do that?</div><div>My cluster is based on GlusterFS 3.10 and Debian 8.<br></div><div><br></div><div>Regards,<br></div><div>Bartosz</div></div></body></html>