On 02/25/2014 03:54 PM, Florent Bautista wrote:
Hi all,
I'm new with Ceph and I would like to know if there is any way of
changing size of Ceph's internal objects.
I mean, when I put an image on RBD for exemple, I can see this:
rbd -p CephTest info base-127-disk-1
rbd image 'base-127-disk-1':
size 32768 MB in 8192 objects
order 22 (4096 kB objects)
block_name_prefix: rbd_data.347c274b0dc51
format: 2
features: layering
"4096 kB objects" => how can I change size of objects ?
You can't change it afterwards, but when creating and image you can
supply the --order value and change the default 22 into something you like:
22 = 4096KB
23 = 8192KB
24 = 16384KB
25 = 32768KB
26 = 65536KB
Or is it a fixed value in Ceph architecture ?
No, you can set it per RBD image. I have to see, for most situations the
default 4MB works just fine.
Thank you
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
--
Wido den Hollander
42on B.V.
Phone: +31 (0)20 700 9902
Skype: contact42on
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
