<div dir="ltr"><div>Guys, thank you very much for your comments,</div><div><br></div><div>I thought a lot about why we need to be so limited in IPA use cases. Now it much clearer for me. Indeed, having some kind of agent running inside host OS is not what many people want to see. And now I'd rather agree with that.</div>
<div><br></div><div>But there are still some questions which are difficult to answer for me.</div><div>0) There are a plenty of old hardware which does not have IPMI/ILO at all. How Ironic is supposed to power them off and on? Ssh? But Ironic is not supposed to interact with host OS. </div>
<div>1) We agreed that Ironic is that place where we can store hardware info ('extra' field in node model). But many modern hardware configurations support hot pluggable hard drives, CPUs, and even memory. How Ironic will know that hardware configuration is changed? Does it need to know about hardware changes at all? Is it supposed that some monitoring agent (NOT ironic agent) will be used for that? But if we already have discovering extension in Ironic agent, then it sounds rational to use this extension for monitoring as well. Right?</div>
<div>2) When I deal with some kind of hypervisor, I can always use 'virsh list --all' command in order to know which nodes are running and which aren't. How am I supposed to know which nodes are still alive in case of Ironic? IPMI? Again IPMI is not always available. And if IPMI is available, then why do we need heartbeat in Ironic agent?</div>
<div><br></div><div><br></div></div><div class="gmail_extra"><br clear="all"><div><div>Vladimir Kozhukalov</div></div>
<br><br><div class="gmail_quote">On Fri, Apr 4, 2014 at 9:46 PM, Ezra Silvera <span dir="ltr"><<a href="mailto:EZRA@il.ibm.com" target="_blank">EZRA@il.ibm.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class=""><font size="3">> Ironic's responsibility ends where the host OS begins.
Ironic is a bare metal provisioning service, not a configuration management
service.</font>
<br>
<br></div><font face="sans-serif">I agree with the above, but just to
clarify I would say that Ironic shouldn't *interact* with the host
OS once it booted. Obviously it can still perform BM tasks underneath the
OS (while it's up and running) if needed (e.g., force shutdown through
IPMI, etc..)</font>
<br><span class="HOEnZb"><font color="#888888">
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<br><font face="sans-serif"><br>
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Ezra<br>
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