Brandon Lamb wrote:
Hello,
We have started looking into some used inifiniband hardware to up our
network from the typical gigabit ethernet to the 10gigabit infiniband
stuff. Im curious to hear from anyone that has maybe done this or has
been able to see how much of a performance gain there is. My primary
interest would be in a replicated setup (5 or so clients and 2 data
servers). Our use would be web files and/or mail possibly, both i
guess are small files.
Have you done testing with 1Gb networking? Do your storage boxes have
enough CPU resource to handle a 10x increase in bandwidth? What about
disk I/O? You'll need some pretty fat storage nodes to justify going to
10Gb.
We are also however looking into building xen servers, and looking at
designs for do we stick images on local disks or try nas/san
solutions, try glusterfs for this maybe?
Considering that virtualized disk I/O performance varies between 10% and
40% of bare metal, you may be lucky and find that using a fuse based fs
doesn't actually affect the performance too badly on top of the
virtualization overheads.
Good luck. Please report your findings. :)
Gordan
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