On 2017-06-28 22:55, li...@marcelofrota.info wrote:
> Hi People,
>
> I am testing the new enviroment, with ceph + rbd with ubuntu 16.04, and i
> have one question.
>
> I have my cluster ceph and mount the using the comands to ceph in my linux
> enviroment :
>
> rbd create veeamrepo --size 20480
> rbd --image veeamrepo info
> modprobe rbd
> rbd map veeamrepo
> rbd feature disable veeamrepo exclusive-lock object-map fast-diff deep-flatten
> mkdir /mnt/veeamrepo
> mount /dev/rbd0 /mnt/veeamrepo
>
> The comands work fine, but i have one problem, in the moment, i can mount the
> /mnt/veeamrepo in the same time in 2 machines, and this is a bad option for
> me in the moment, because this could generate one filesystem corrupt.
>
> I need only one machine to be allowed to mount and write at a time.
>
> Example if machine1 mount the /mnt/veeamrepo and machine2 try mount, one
> error would be displayed, show message the machine can not mount, because the
> system already mounted in machine1.
>
> Someone, could help-me with this or give some tips, for solution my problem. ?
>
> Thanks a lot
>
> _______________________________________________
> ceph-users mailing list
> ceph-users@lists.ceph.com
> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
You can use Pacemaker to map the rbd and mount the filesystem on 1
server and in case of failure switch to another server.
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