Hi, ----- Original message ----- > Dear All: > > I map the same rbd image to the rbd device on two different servers. > > For example: > 1. create rbd image named foo > 2. map foo to /dev/rbd0 on server A, mount /dev/rbd0 to /mnt > 3. map foo to /dev/rbd0 on server B, mount /dev/rbd0 to /mnt > > If I put add a file to /mnt via server A, I hope I can see the same > file on server B. > However, I can't see it until I umount /mnt on server A and re-mount > /mnt on server B. You'd have to use an cluster filesystem like GFS or OCFS2 to let this work. But why not use Ceph as a filesystem instead of RBD? That seems to do what you want. Wido > > Do you have any comment about this scenario? How could I force the > data synchronization? > > Actually, I want to implement the iSCSI High Available multipath on > http://ceph.newdream.net/wiki/ISCSI. > Therefore, I tried this small experiment first, but fail. Would you > please give me some suggestion before I start to implement it? Thanks! > > > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
