I've installed a little, four node Ceph (0.47.2) cluster using Xen virtual machines for testing, and when I run bonnie against a (kernel driver) mount of it, it seems to be somewhat flaky (disturbing log messages, occasional binary deaths), and very slow. I expected some slowness, with all the virtualization going on, but when bonnie is running, simply doing a cd into the mount takes minutes to complete. Is this to be expected, or is it worth spending time to investigate? I intend to deploy this on bare metal eventually, but was hoping to get some operational experience with Ceph before investing the money in that. For background, I'm investigating Ceph as a "redundant array of inexpensive machines" replacement for RAID arrays at home. I'm planning eventually to deploy something (even if I have to write it myself) that works essentially like Google's GFS, with a POSIX, mountable interface, running on the cheapest machines I can assemble, so there should be no failures that cannot be dealt with through obvious and cheap hardware replacement. Brian. -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
