Re: [ceph-users] questions about rbd image

Well connecting an rbd to two servers would be like mapping a block device from a storage array onto two different hosts, that's is possible and (was) done. (it would be much more difficult though to connect a single physical harddisk to two computers) The point is that as mentioned above you

Re: [ceph-users] questions about rbd image

An RBD can only be mapped to a single client host. There is no way around this. An RBD at its core is a block device. Connecting an RBD to 2 servers would be like connecting a harddrive to 2 servers. On Mon, Dec 11, 2017 at 9:13 AM 13605702596 <13605702...@163.com> wrote: > hi Jason > thanks

Re: [ceph-users] questions about rbd image

hi Jasonthanks for your answer.there is one more question, that is: can we use rbd image to share data between two clients? one wirtes data, another just reads? thanks At 2017-12-11 21:52:54, "Jason Dillaman" wrote: >On Mon, Dec 11, 2017 at 7:50 AM, 13605702...@163.com

Re: [ceph-users] questions about rbd image

On Mon, Dec 11, 2017 at 7:50 AM, 13605702...@163.com <13605702...@163.com> wrote: > hi > > i'm testing on rbd image. the are TWO questions that confused me. > ceph -v > ceph version 10.2.10 (5dc1e4c05cb68dbf62ae6fce3f0700e4654fdbbe) > uname -r > 3.10.0-514.el7.x86_64 > > (1) does rbd image

[ceph-users] questions about rbd image

hi i'm testing on rbd image. the are TWO questions that confused me. ceph -v ceph version 10.2.10 (5dc1e4c05cb68dbf62ae6fce3f0700e4654fdbbe) uname -r 3.10.0-514.el7.x86_64 (1) does rbd image supports multiple clients to write data simultaneously? if it supports, how can share data between

Re: [ceph-users] Questions about rbd image features

On Fri, Jan 13, 2017 at 5:11 AM, Vincent Godin wrote: > We are using a production cluster which started in Firefly, then moved to > Giant, Hammer and finally Jewel. So our images have different features > correspondind to the value of "rbd_default_features" of the version

[ceph-users] Questions about rbd image features

We are using a production cluster which started in Firefly, then moved to Giant, Hammer and finally Jewel. So our images have different features correspondind to the value of "rbd_default_features" of the version when they were created. We have actually three pack of features activated : image