[ovirt-users] gluster config in 4 node cluster

[ml at ohnewald.net]

Am 01.06.15 um 01:32 schrieb Soeren Malchow:
> Hi
>
> For a production environment i would not build a 2 node gluster, i would
> build at least 3 nodes to have it much easier with the quorum.
>

Yes, dont build a 2 Node Gluster. Its a pain....

I started of with a two node gluster. In theory it works, but in 
production it will give you headace.

I switched to 3 Node Gluster. Each connected to each other with 2GBit 
Bonding nics and i am very happy with it and it seems very stable. Even 
if one node goes down.




> Taking into account that you can use commodity hardware i would also
> suggest to split the services, but i would go for at least 3 gluster
> nodes – which add up to at least 5 nodes for a HA system.
>
> If you want 4 in any case, then my suggestion would be to go for 4
> replicas, each node has anything that it needs to run and you can
> basically use NFS to localhost for the storage which would make the
> nodes always access the local storage for the VMS, availability wise it
> makes no difference.
>
> Cheers
> Soeren
>
> From: Юрий Полторацкий <y.poltoratskiy at gmail.com
> <mailto:y.poltoratskiy at gmail.com>>
> Date: Sunday 31 May 2015 18:32
> To: "users at ovirt.org <mailto:users at ovirt.org>" <users at ovirt.org
> <mailto:users at ovirt.org>>
> Subject: Re: [ovirt-users] gluster config in 4 node cluster
>
>
> Hi,
>
> As for me, I would build one cluster with gluster service only based on
> two nodes (replica 2), and the other one with virt service only based on
> other two nodes. I think this variant is more scalable in future.
>
> PS. I am a new in oVirt, so do not except that I am wrong.
>
>
> 28.05.2015 23:11, paf1 at email.cz пишет:
>> Hello,
>> How to optimal configure  4 node cluster for any one node goes to
>> maintenance without stopping VM ??
>>
>> a) replica 4  - but it takes a lot of space
>> b) disperse 3+1 ( raid 5 ) - but bad performance and not visible by
>> oVirt 3.7.2
>> c) stripe2+replica2 = but VM paused
>>
>> any other idea ?
>> regs.
>> Pa.
>>
>>
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>
>
>
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