Hello Mosharaf,
yes, that's no problem. On all of my clusters I did not have a ceph.conf
in in the /etc/ceph folders on my nodes at all.
I have a <name_of_cluster_1>.conf, <name_of_cluster_2>.conf,
<name_of_cluster_3>.conf ...
configuration file in the /etc/ceph folder. One config file for each
cluster.
The same for the different key files e.g.
<name_of_cluster_1>.mon.keyring, <name_of_cluster_2>.mon.keyring
Or the admin key <name_of_cluster_1>.client.admin.keyring,
<name_of_cluster_2>.mon.keyring
But keep in mind, if you go this way you have to provide the
name of the cluster (points to the configuration file you are refering to)
for nearly every ceph command together with the cluster keyword
e.g: ceph --cluster <name_of_cluster_1> health detail
or: rbd --cluster <name_of_cluster_2> ls <storage_pool>
Regards
Markus Baier
--
Markus Baier
Systemadministrator
Fachgebiet Self-Organizing Systems
TU Darmstadt, Germany
S3|19 1.7
Rundeturmstrasse 12
64283 Darmstadt
Phone: +49 6151 16-57242
Fax: +49 6151 16-57241
E-Mail: Markus.Baier@xxxxxxxxxxxxxxxxxxx
Am 09.12.21 um 03:35 schrieb Mosharaf Hossain:
Hello Markus
Thank you for your direction.
I would like to let you know that the way you show it is quite
meaningful but I am afraid how the ceph system would identify the
configuration file as by default it uses ceph. conf in /etc/ceph
folder. Can we define the config file as we want?
It will be helpful to give or show us guidelines to add the ceph
client to multiple clusters.
Regards
Mosharaf Hossain
Deputy Manager, Product Development
IT Division
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On Tue, Nov 2, 2021 at 7:01 PM Markus Baier
<Markus.Baier@xxxxxxxxxxxxxxxxxxx> wrote:
Hello,
yes you can use a single server to operate multiple clusters.
I have a configuration running, with two independent ceph clusters
running on the same node (of course multiple nodes for the two
clusters)
The trick is to work with multiple ceph.conf files, I use two
seperate ceph.conf files under /etc/ceph/
One is called <cluster_a>.conf and the other <cluster_b>.conf
Every cluster uses it's seperate network interfaces, so I use four
10GbE
Interfaces
for the two clusters, but you can also use vlans togehter with a
100GbE
Interface or a 100GbE NIC that can provide virtual ports for the
separation
of the networks and the distribution of the network load.
Every cluster uses also a seperate keyring, so e.g for the first
cluster you have a keyring named <cluster_a>.mon.keyring
and for the second one <cluster_b>.mon.keyring
inside of the /etc/ceph folder.
To administrate the whole thing, ceph provide
the --cluster parameter for the command line programs.
So ceph --cluster <cluster_a> -s
will show the outputs for cluster one and
ceph --cluster <cluster_b> -s
for the cluster two
Regards
Markus Baier
Am 02.11.21 um 13:30 schrieb Mosharaf Hossain:
> Hi Users
> We have two ceph clusters in our lab. We are experimenting to
use a single
> server as a client for two ceph clusters. Can we use the same
client server
> to store keyring for different clusters in ceph.conf file.
>
>
>
>
> Regards
> Mosharaf Hossain
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