<div dir="ltr">When a storage error occurs, VMs should pause, not migrate. However, if the VMs were io-idle, then pause (qemu EIO) might have not been triggered before hosts started dropping into non-op. <div>...which triggered a migration storm for HA-enabled VMs, racing with VMs pausing somehow (can't tell without diving into the logs for sure).<div><br></div><div>I haven't seen it happen in any of my setups, probably a new issue</div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Feb 3, 2016 at 9:39 AM, Mark Steele <span dir="ltr"><<a href="mailto:msteele@telvue.com" target="_blank">msteele@telvue.com</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 class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)">Hello,</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)">I'd like to know if there is a way to configure ovirt (<span style="font-family:arial,sans-serif;color:rgb(34,34,34)">oVirt Engine Version: 3.5.0.1-1.el6) to NOT migrate VM's when there is a problem with attached storage.</span></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)"><span style="font-family:arial,sans-serif;color:rgb(34,34,34)"><br></span></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)"><span style="font-family:arial,sans-serif;color:rgb(34,34,34)">Scenario - our storage array that hosts all our VM disks failed. When that happened, ovirt attempted to migrate running VM's from one host to another. Unfortunately this left many of the VM's in a 'migrating to' state that could only be resolved by restarting the HV's</span></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)"><span style="font-family:arial,sans-serif;color:rgb(34,34,34)"><br></span></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)"><span style="font-family:arial,sans-serif;color:rgb(34,34,34)">I'd prefer to have ovirt simply hang the VM's until disk IO returns.</span></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)"><span style="font-family:arial,sans-serif;color:rgb(34,34,34)"><br></span></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)"><span style="font-family:arial,sans-serif;color:rgb(34,34,34)">Is this possible?</span></div><div><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><font color="#000000" face="verdana, sans-serif"><br></font></div><div><font color="#000000" face="verdana, sans-serif">***</font></div><span class="HOEnZb"><font color="#888888"><div><b style="font-family:verdana,sans-serif;color:rgb(0,0,0)"><font size="2">Mark Steele</font></b><br></div><div><font face="verdana, sans-serif"><span style="color:rgb(0,0,0)">CIO / VP Technical Operations | TelVue Corporation</span></font></div><div><font face="verdana, sans-serif"><span style="font-size:x-small;color:rgb(0,0,0)">TelVue - We Share Your Vision</span></font></div><div><font face="verdana, sans-serif"><span style="font-size:x-small;color:rgb(0,0,0)"><span><span title="Call with Google Voice"><a href="tel:800.885.8886" value="+18008858886" target="_blank">800.885.8886</a></span> x128 | </span><a href="mailto:msteele@telvue.com" target="_blank">msteele@telvue.com</a> | </span><a href="http://www.telvue.com/" style="font-size:x-small" target="_blank">http://www.telvue.com</a></font></div><div><font face="verdana, sans-serif"><span style="font-size:x-small">twitter: </span><a href="http://twitter.com/telvue" style="font-size:x-small" target="_blank">http://twitter.com/telvue</a><span style="font-size:x-small"> | facebook: </span><a href="https://www.facebook.com/telvue" style="font-size:x-small" target="_blank">https://www.facebook.com/telvue</a></font></div></font></span></div></div></div></div></div></div></div>
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