On Tue, Apr 16, 2019 at 2:39 PM Magnus Isaksson <mag...@vmar.se> wrote:
>
> I have 2 hosts per cluster, and i have 2 clusters, 4 hosts (its an Huawei
> x6000)
>
> I know oVirt don't support disperse, that's why i run gluster outside of
> oVirt.
> And doing that i get a bit more freedom with setting up gluster.
> So what would be an good setup to be able to use as much space as possible
> and some redundancy with the 4 hosts i have?
Even if you run gluster outside of oVirt, you are using the disperse
volume as storage domain?
For a supported config, you can create a distributed-replica+arbiter
gluster volume. Since you have 12 disks, you can use a 5 x 3 (arbiter)
setup, where a disk is partitioned to multiple arbiter bricks,
something like this (c11,c12, a31, a32 are arbiter bricks) :
a1 b1 c11
a2 b2 c12
b3 c13 d1
a31 c2 d2
a32 c3 d3
>
> //Magnus
>
>
> ________________________________
> From: Sahina Bose <sab...@redhat.com>
> Sent: 16 April 2019 10:55
> To: Magnus Isaksson
> Cc: users
> Subject: Re: [ovirt-users] Gluster suggestions
>
> On Tue, Apr 16, 2019 at 1:42 PM <mag...@vmar.se> wrote:
> >
> > Hello
> >
> > I would like some suggestions on what type of solution with Gluster i
> > should use.
> >
> > I have 4 hosts with 3 disks each, i want to user as much space as possible
> > but also some redundancy, like raid5 or 6
> > The 4 hosts are running oVirt on CentOS 7
> > I have 2 clusters due to some licensing issues, so i cant use ovirts setup
> > of gluster
>
> I did not quite get this - are you saying you can have only 2 nodes in
> one cluster?
>
> >
> > Today i have set it up as follows
> > Type: Disperse
> > Number of Bricks: 1 x (8 + 4) = 12
>
> Disperse volumes are not supported with oVirt. It's either replica 3
> or replica 2 + arbiter.
>
> >
> > So i have 3 bricks per host (one brick per disk)
> >
> > But this setup is not working very well, as soon as i get some traffic on
> > the volume this start to fail on the ovirt nodes, loosing connection etc.
> >
> > All hosts are connected via 10G interface
> >
> > So any suggestions on how i would set this up as best is much appreciated.
> >
> > Regards
> > Magnus Isaksson
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