4 a.m.
I'm currently thinking about just setting up a rsync cron to run every minute.
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‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Thursday, April 15, 2021 8:55 PM, David White via Users <users(a)ovirt.org> wrote:
>
> > David, I’m curious what the use case is. :9 you plan on using the disk with
three vms at the same time? This isn’t really what shareable disks are meant to do afaik.
If you want to share storage with multiple vms I’d probably just setup an nfs share on one
of the vms
> > On Thu, Apr 15, 2021 at 7:37 PM David White via Users users(a)ovirt.org wrote:
> > > I found the proper documentation
at https://www.ovirt.org/documentation/administration_guide/#Shareable_Disks.
> > > When I tried to edit the disk, I see that sharable is grayed out, and when
I hover my mouse over it, I see "Sharable Storage is not supported on Gluster/Offload
Domain".
> > > So to confirm, is there any circumstance where a Gluster volume can support
sharable storage? Unfortunately, I don't have any other storage available, and I chose
to use Gluster, so that I could have a HA environment.
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> > > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> > > On Thursday, April 15, 2021 5:05 PM, David White via Users
users(a)ovirt.org wrote:
> > > > I need to mount a partition across 3 different VMs.
> > > > How do I attach a disk to multiple VMs?
> > > > This looks like fairly old
documentation-not-documentation: https://www.ovirt.org/develop/release-ma...
> > >
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> David, I’m curious what the use case is
This is for a customer who wants as much high availability as
possible for their website, which relies on a basic LAMP or LNMP stack.
The plan is to create a MariaDB Galera cluster.
Each of the 3 VMs will run MariaDB, as well as Apache or Nginx (I
haven't decided which, yet), and will be able to accept web traffic.
So the website files will need to be the same across all 3 virtual
servers.
My original intent was to setup a mount point on all 3 virtual
servers that mapped back to the same shared disk.
Strahil, 1 idea I had, which I don't think would be ideal at all,
was to setup a separate, new, gluster configuration on each of the 3 VMs. Gluster
virtualized on top of gluster! If that doesn't make your head spin, what will? But
I'm not seriously thinking about that. :)
It did occur to me that I could setup a 4th VM to host the NFS
share.
But I'm trying to stay away from as many single points of
failures as possible.
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‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Thursday, April 15, 2021 7:40 PM, Strahil Nikolov via Users users(a)ovirt.org wrote:
> I know that clusterizing applications (for example
corosync/pacemaker Active-Passive or even GFS2) require simultaneous access to the data.
> In your case you can create:
> - 2 separate VMs replicating over DRBD and sharing the storage
over NFS/iSCSI
> - Using NFS Ganesha (this is just a theory but should work) to export your Gluster
volumes in a redundant and highly available way
> Best Regards,
> Strahil Nikolov
>
> В петък, 16 април 2021 г., 01:56:09 ч. Гринуич+3, Jayme
jaymef(a)gmail.com написа:
>
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