On Friday, October 31, 2014, Massimiliano Cuttini <max@xxxxxxxxxxxxx> wrote:
Any hint?
Il 30/10/2014 15:22, Massimiliano Cuttini ha scritto:
Dear Ceph users,
I just received 2 fresh new servers and i'm starting to develop my Ceph Cluster.
The first step is: create the admin node in order to controll all the cluster by remote.
I have a big cluster of XEN servers and I'll setup there a new VM only for this.
I need some info:
1) As far as i know admin-node need only to deploy, it doesn't support any kind of service. Is it so or i missed something?
2) All my servers for the OSD nodes will be CENTOS7. Then do I need to setup the admin-node with the same OS or i can mix-up?
3) Can I delete the admin-node in the future and recreate it whenever i need it .... or there are some "unique" informations (such keys) that i need always to preserve?
4) is it good having more than 1 ADMIN NODE or completly useless?
5) do you have some best practice to share? :)
Thanks,
Max
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I have one VM with minimal CPU and memory provisioned that I used to deploy my ceph cluster. It doesn't run any ceph services, but I do use it to monitor and troubleshoot the cluster.
It is connected to the ceph public network (which is a non-routable network) and to my corporate network.
Most of the ceph cluster is not on the corporate network, so I use this VM as a jumpbox to get into the rest of the network.
I use the same OS (Ubuntu 12.04) on the deploy VM as all my other ceph servers/VMs. This is nice so I can test new packages and kernels on this VM first. That way I don't take down the ceph cluster when a kernel upgrade goes bad. I just tested 3.18rc2 and found it made my VM unbootable.
Jake
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