Hello Aaron

Thanks for your answers!!

If my understanding is correct then  , By default ceph supports data 
replication and striping and  striping doesn’t requires any separate 
configuration .

Please correct me if I am wrong.





From: Aaron Ten Clay [mailto:[email protected]]
Sent: Wednesday, August 27, 2014 1:55 AM
To: Channappa Negalur, M.
Cc: [email protected]; [email protected]
Subject: Re: [Ceph-community] ceph replication and striping

On Tue, Aug 26, 2014 at 5:07 AM, 
<[email protected]<mailto:[email protected]>> 
wrote:
Hello all,

I have configured a ceph storage cluster.

1. I created the volume .I would like to know that  replication of data will 
happen automatically in ceph ?
2. how to configure striped volume using ceph ?


Regards,
Malleshi CN


If I understand your position and questions correctly... the replication level 
is configured per-pool, so whatever your "size" parameter is set to for the 
pool you created the volume in will dictate how many copies are stored. 
(Default is 3, IIRC.)
RADOS block device volumes are always striped across 4 MiB objects. I don't 
believe that is configurable (at least not yet.)

FYI, this list is intended for discussion of Ceph community concerns. These 
kinds of questions are better handled on the ceph-users list, and I've 
forwarded your message accordingly.
-Aaron

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