hi Sean thanks for your reply
I think the ceph and openstack works fine for me. I can attach a bootable volume to vm. I am right now trying to attach the volumes to physical servers (hypervisor nodes) and share some data among hypervisors (based on the docs, nova evacuate function require all hypervisors share instance files). In the doc, they are using a NFS cluster. I am wondering if i can use the ceph volume instead of NFS. (I have created a volume and attached the volume to 2 hypervisors (A and B). but when I write something in server A, the server B couldn't see the file. I have de-attach and re-attach the volume on server B. ) On Mon, May 2, 2016 at 9:34 AM, Sean Redmond <sean.redmo...@gmail.com> wrote: > Hi, > > You could set the below to create ephemeral disks as RBD's > > [libvirt] > > libvirt_images_type = rbd > > > On Mon, May 2, 2016 at 2:28 PM, yang sheng <forsaks...@gmail.com> wrote: > >> Hi >> >> I am using ceph infernalis. >> >> it works fine with my openstack liberty. >> >> I am trying to test nova evacuate. >> >> All the vms' volumes are shared among all compute nodes. however, the >> instance files (/var/lib/nova/instances) are in each compute node's local >> storage. >> >> Based on redhat docs( >> https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux_OpenStack_Platform/6/html/Administration_Guide/section-evacuation.html), >> nova evacuate require sync the instance files as well and they created a >> NFS cluster. >> >> Since ceph is also shared among all nodes as well, I was thinking to >> create a volume in ceph and attach this volume to all compute nodes. >> >> just wondering is this doable? >> >> (I have already attached this volume to 2 servers, server A and server B. >> If I write something in server A, seems it is not visible to server B. I >> have to re-attach the volume to server B so that server B can see it.) >> >> _______________________________________________ >> ceph-users mailing list >> ceph-users@lists.ceph.com >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> >> >
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