<div dir="ltr">长波,<br> 你对oslo比较熟,能帮我看看这个问题吗, <a href="https://answers.launchpad.net/oslo.config/+question/261550">https://answers.launchpad.net/oslo.config/+question/261550</a><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jan 27, 2015 at 12:13 PM, ChangBo Guo <span dir="ltr"><<a href="mailto:glongwave@gmail.com" target="_blank">glongwave@gmail.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>Hi ALL,<br><br></div><div>I have been working on bug 1414432 [1] recently, I would like do more discussion before further work.<br><br>I'm talking about libvirt driver( maybe fit for other hypervisor), there are two kinds of storages which are used for instance's root_disk.<br>1) non-shared storage on each compute nodes<br></div><div>2) shared storage between compute nodes<br> 2.1 shared instance_path and root_disk (shared everything ike NFS)<br> 2.2 shared root_disk without shared instance_path (shared volume backend like ceph)<br><br></div><div>Current we check if shared storage or not in concrete actions like live-migration, evacuate, these need pass instance as argument,<br></div><div>I think the value of hared storage or not should base on compute node, should not base on instance.<br>So do we need new nova configuration option to show compute nodes with shared_storage or not ?<br><pre>benefits:<br></pre><pre> 1) Don't need check for each instance while taking action<br> 2) Can handle similar bug easily like [1] from API level.<br></pre>If yes,<br>some thing like, compute-node-storage-type= [ non-shared | shared-all | shared-volume ] or part-shared<br> In order to support some compute nodes with shared_storage, and others doesn't in one OpenStack development,<br> another configuration shared_storage_compute_nodes =[node3, node5]<br><br></div><div>Any thoughts ?<br></div><div><br><br>[1]<a href="https://bugs.launchpad.net/nova/+bug/1414432" target="_blank">https://bugs.launchpad.net/nova/+bug/1414432</a><span class="HOEnZb"><font color="#888888"><br clear="all"><br>-- <br><div><div dir="ltr"><div>ChangBo Guo(gcb)</div></div></div>
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<br></blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature"><div dir="ltr"><div>Best Regards</div><div>Zhang Hua(张华)</div><div>Software Engineer | Canonical</div><div>IRC: zhhuabj</div></div></div>
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