On Wed, Feb 22, 2012 at 1:39 AM, madhusudhana <madhusudhana.u.acharya@xxxxxxxxx> wrote: > Hi > I have finally configured a ceph cluster with 8 nodes. I have 2 MDS > servers and 3 monitors and rest of 3 nodes are OSD. Each system has > 2T SATA drives. I have 3 partitions created, one for root file > system, another for CEPH journal and the rest of the space is for > OSD. I was able to get 5.6T space from three nodes. > > All the machines are of same type (HP DL160 G7) with 48 of RAM and > quad core dual cpu's. > > I am using iozone for testing the performance against NetApp filer > Below is the command what I am using for iozone test > > /opt/iozone/bin/iozone -R -e -l i -u 1 -r 4096k -s 1024m -F /mnt/ceph- > test/ceph.iozone If I'm reading it correctly you're using Direct IO? That's almost certainly just going to be slow... > > When I see the result, the value from ceph cluster is not at all > coming near to an entry level NetApp filer. I would like to > know the ideal way (if there is any) for testing ceph cluster > performance so that we can compare it with other file systems. > If required, I can share the test results. Please do, or we won't have anywhere to go off of. :) And are you running this on GigE or 10GigE? -Greg -- 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
