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Hi List, i am using Ceph Infernalis and Ubuntu 14.04 Kernel 3.13. 18 Data Server / 3 MON / 3 RBD Clients I want to use RBD on the Client with image format 2 and Striping. Is it supported? I want to create rbd with: rbd create testrbd -s 2T --image-format=2 --image-feature=striping --image-feature=exclusive-lock --stripe-unit 65536B --stripe-count 8 Do i become better single Thread performance with a higher stripe count? If not: Should i use Ubuntu 16.04 with Kernel 4.4 ? Is it with that Kernel supported? The manpage says: http://manpages.ubuntu.com/manpages/wily/man8/rbd.8.html PARAMETERS --image-format format
Specifies which object layout to use. The default is 1.
· format 2 - Use the second rbd format, which is supported by
librbd and kernel since version 3.11 (except for striping).
This adds support for cloning and is more easily extensible to
allow more features in the future.
Regards |
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