<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head><body><div data-html-editor-font-wrapper="true" style="font-family: arial, sans-serif; font-size: 13px;">Hi guys,<br><br>I'm facing a problem with Cinder version openstack-cinder-2014.1.3-1 which doesn't let me migrate a volume from one LVM backend to another LVM.<br>I'm doing this simple task:<br><br>- cinder create lad-test-02 20<br>- cinder migrate lad-test-02 newcinderhost050<br><br>The logs show that the process begins, the iSCI target is created and the LV too on the new host.<br>Unfortunately the old target/LV persists, it isn't deleted...<br><br>A Cinder list shows:<br><br>| 0f70ccb6-85ba-4726-bda8-4051b68e943e | available | lad-test-02 | 20 | None | false |<br>| 239bab9d-a70c-470e-ad13-9100946d8ca7 | available | lad-test-02 | 20 | None | false |<br><br>tgtd-admin -s and lvs, issued on the old and the new Cinder hosts, demonstrate that the two volumes are present and running at this level.<br><br>If i try to delete it:<br><br>cinder delete 0f70ccb6-85ba-4726-bda8-4051b68e943e<br>Delete for volume 0f70ccb6-85ba-4726-bda8-4051b68e943e failed: Internal Server Error (HTTP 500)<br>ERROR: Unable to delete any of the specified volumes.<br><br>cinder delete 239bab9d-a70c-470e-ad13-9100946d8ca7<br>Delete for volume 239bab9d-a70c-470e-ad13-9100946d8ca7 failed: Internal Server Error (HTTP 500)<br>ERROR: Unable to delete any of the specified volumes.<br><br>The consistency of the two volumes isn't ensured anymore and my two volumes are unusable at the OpenStack level.<br><br>So, in a word, my point is, how do you manage LVM volumes migration between your Cinders and how do you upgrade OpenStack Cinder nodes with used volumes on it ?<br><br>Any help would be great,<br>Thanks</div></body></html>