Re: Multiple OSDs per host

[Vikrant Verma <vikrantverma99@xxxxxxxxx>]

Yes.. it is possible.

Also to cross check you can run the below command on the host

"ps -elf | grep ceph"

you can see all ceph-osd daemon running.. something like "ceph-osd --cluster=<cluster name> -i  <osd-num>   -f

On Tue, Mar 11, 2014 at 6:38 PM, Ashish Chandra <mail.ashishchandra@xxxxxxxxx> wrote:

Hi Zeeshan, it is possible to run multiple OSDs in a single host, with each OSD tied to seperate disk.

If you are using ceph-deploy, you can use :

Hostname : ceph-node1

device  : sdb, sdc ,sdd , ...

ceph-deploy osd prepare <hostname> : sdb: /dev/sdb <hostname>:sdc:/dev/sdc 

ceph-deploy osd activate<hostname> : sdb: /dev/sdb <hostname>:sdc:/dev/sdc 

or , manually you can use :

http://ceph.com/docs/master/rados/operations/add-or-rm-osds/#adding-an-osd-manual

Thanks and Regards

Ashish Chandra

Cloud Engineer, Reliance Jio

On Tue, Mar 11, 2014 at 6:25 PM, Zeeshan Ali Shah <zashah@xxxxxxxxxx> wrote:

Hi, 

We have multiple Disks (12) in a single host . Is it possible to run multiple OSds on single host and attach each OSD with single disk  ?

I assum OSD-Daemon listen to particular port which has to be changed in above case. 

any suggestion ?

--

Regards

Zeeshan Ali Shah

System Administrator - PDC HPC

PhD researcher (IT security)

Kungliga Tekniska Hogskolan

+46 8 790 9115

http://www.pdc.kth.se/members/zashah

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