[Yahoo-eng-team] [Bug 1788619] Re: disk cachemodes should be restricted with multiattached volumes

2018-10-12 Thread Sean McGinnis
Description only refers to nova settings. I don't see anything here for Cinder, so I am going to close it as Invalid. If there is something, please reopen and provide more detail what Cinder is doing (or not doing) that it should. ** Changed in: cinder Status: New => Invalid -- You receiv

[Yahoo-eng-team] [Bug 1788619] Re: disk cachemodes should be restricted with multiattached volumes

2018-10-12 Thread Matt Riedemann
Have you tested this or just guessing that the libvirt driver in nova isn't doing the right thing? Because multiattach disks are always set to cache mode "none": https://github.com/openstack/nova/blob/20bc0136d0665bafdcd379f19389a0a5ea7bf310/nova/virt/libvirt/driver.py#L423-L426 # Shareab