[PVE-User] Shared same rbd disk on 2 Vms

Ronny Aasen ronny+pve-user at aasen.cx
Wed Jul 24 08:54:53 CEST 2019


On 03.07.2019 14:20, Hervé Ballans wrote:
> Le 02/07/2019 à 15:50, Tobias Kropf a écrit :
>> With any Network connection between the vms ... you can use DRBD on 
>> top of the rbd volumes?
> 
> Thanks Tobias for your reply.
> 
>  From what I understood in the past on drbd, it requires 2 disks to be 
> synchronized between them (sort of network RAID 1 ?). Now I want exactly 
> the opposite, a single disk that I can use on 2 machines...
> 
> rv


with  OCFS or GFS you can run the same blockdevice on multiple machines. 
but it is a bit of extra complexity vs just using cephfs.

so if you basically want a filesystem i would look at cephfs. if you 
absolutely need multi access block devices, you can research OCFS or GFS

kind regards
Ronny


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