On 11/3/2019 6:24 PM, TomK wrote:
On 11/3/2019 12:52 AM, TomK wrote:
On 11/2/2019 4:07 AM, Strahil wrote:
You should be able to do that with the POSIX compliant domain ... If nit, it's better to open a bug so this behaviour is investigated further.
I haven't tried the POXIS compliant domain but from what I recall and remember happening, I couldn't bind a host to more then a single storage domain. I could be wrong but I couldn't select more then a single storage domain a host could be associated with.
"Any POSIX compliant file system used as a storage domain in oVirt must be a clustered file system, such as Global File System 2 (GFS2), and must support sparse files and direct I/O. The Common Internet File System (CIFS), for example, does not support direct I/O, making it incompatible with oVirt."
Guessing this might not work if I have a Local LUN that's XFS or EXT4?
"Adding Local Storage Adding local storage to a host in this manner causes the host to be put in a new data center and cluster. The local storage configuration window combines the creation of a data center, a cluster, and storage into a single process." This explains the reason for the removal. Source: https://www.ovirt.org/documentation/admin-guide/chap-Storage.html
So it was either Local storage or GlusterFS storage, but both couldn't be bound to a single host.
Does oVirt have the facilities to test this out to see how it should be done?
Thx, TK
Best Regards, Strahil NikolovOn Nov 2, 2019 00:38, TomK <tomkcpr@mdevsys.com> wrote:
On 10/11/2019 12:10 AM, Strahil wrote:
I'm not sure, but you can try with replica 1 gluster volume. Later that gluster volume can be changed to replica 2 arbiter 1 or even better replica 3 volume.
Now that I see this I'm not sure we're on the same page.
Thinking this might clarify a bit better. Let's take this scenario, assume gluster is working perfectly:
HOST01 4TB Local LUN /dev/sdb 4TB Gluster FS (brick w/ host02,03) /dev/sdc
HOST02 4TB Local LUN /dev/sdb 4TB Gluster FS (brick w/ host01,03) /dev/sdc
HOST03 4TB Local LUN /dev/sdb 4TB Gluster FS (brick w/ host02,01) /dev/sdc
For each host I need the local LUN to be available for VM's with the GlusterFS storage that's distributed across all three nodes.
However, when I tried to add a local LUN, the host was removed from the storage domain rendering it unavailable. Now when I took out the local LUN, I was able to readd that host to the GlusterFS storage domain.
So it appears I can't add a local LUN when a host is already participating in a GlusterFS storage domain.
Cheers, TK
Best Regards, Strahil NikolovOn Oct 10, 2019 13:04, Tom <tk@mdevsys.com> wrote:
I take it then theres no way to do so without NFS?
Sent from my iPhone
> On Oct 10, 2019, at 2:53 AM, Strahil <hunter86_bg@yahoo.com> wrote: > > You can create an NFS on that host and export to itself that > local storage... > > Best Regards, > Strahil NikolovOn Oct 9, 2019 07:43, TomK <tomkcpr@mdevsys.com> > wrote: >> >> Manged to reverse it through the options. Had to deactivate the >> custom >> local cluster. >> >> Now I have my GlusterFS back and want to try and add some local >> storage >> to each host under the same DC, Cluster and Storage Domain. So >> effectively I will have two storage locations. One on my >> GlusterFS and >> the other on the local storage I've just defined. >> >> Appears I can't make them coexist with oVirt. Either the host >> is placed >> in a separate cluster with local storage, or I move it back to the >> GlusterFS. >> >> Appears I can't have two usable storage types under one host. >> Is this >> correct? >> >> What I'm looking for is in the image and shared earlier. >> >> Cheers, >> TK >> >>> On 10/8/2019 11:03 PM, TomK wrote: >>> I'm working to reverse this scenario. >>> >>> My storage domain still exists. However I can't activate it. The >>> Manage button is greyed out without clear indication as to why. >>> Difficult to tell what my next move should be. >>> >>> Anyway to find out? >>> >>> Cheers, >>> TK >>> >>>> On 10/7/2019 8:25 AM, TomK wrote: >>>> Allright. >>>> >>>> So I followed this and configured local storage. It had some >>>> default >>>> names that I changed. It would have been either the default >>>> name, or >>>> one I choose. In either case it would be a different name >>>> then the >>>> Gluster storage domain the host was a part of anyway. >>>> >>>> Once the process completed for both hosts, I noticed the Gluster >>>> volume storage domain was offline and the gluster volume was >>>> gone. I >>>> can't seem to add that back in anymore. I get: >>>> >>>> "Error while executing action >>>> DisconnectStorageServerConnection: Error >>>> storage server disconnection" >>>> >>>> Guessing I can't have local storage in addition to Gluster on >>>> the same >>>> hosts and available for VM's? >>>> >>>> Reason why I need that is that Gluster is slow but provides >>>> redundancy >>>> and live migration. But I also wanted direct storage for VM's >>>> requiring faster IO. So here's my sc
-- Thx, TK.