Hi All,
I was trying to define QoS on volumes in the openstack setup. Ceph Cluster is configured as Storage back-end for images and volumes.
As part of my experimentation i thought of clubbing few disks (say HDD) with one type of QoS and other few disks (say SSD) with another type of QoS.
But the configuration/design does not seems to be efficient as you suggested, rather i am trying now to put QoS on volumes itself.
Thanks for your suggestions.
Regards,
Vikrant
On Thu, Feb 13, 2014 at 7:28 PM, Kurt Bauer <kurt.bauer@xxxxxxxxxxxx> wrote:
Hi,
It' s perfectly possible, but at the expense of redundancy, resilience and/or speed. You can use some RAID, then loosing one hardrive (or more, depending on the RAID Level) is not big deal regarding redundancy, but it slows down the whole system while recovering the RAID, after changing the faulty drive. If you do something like LVM to "pool" multiple physical disks, even loosing one disk brings down the whole OSD.yes, I want to use multiple hard drives with a single OSD.Is it possible to have it?
On the contrary using one OSD per physical disk gives you all the flexibility, redundancy and speed you want to have, so I wonder why you don't want to do that?
Best regards,
Kurt
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On 12/02/2014 12:28, Vikrant Verma wrote:Hi All, I have one quick question - Is it possible to have One Ceph-OSD-Daemon managing more than one Object Storage Device in a Ceph Cluster?Hi, Do you want to use multiple hard drives with a single OSD ? CheersRegards, Vikrant _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com_______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.comHi All,I have one quick question -Is it possible to have One Ceph-OSD-Daemon managing more than one Object Storage Device in a Ceph Cluster?
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