On my test system, with the two new disks and with the three domU guest systems set up and running (but not connected to the outside world, so the load is obviously lower), I run tiobench in the dom0. Executive summary:
read/write rates around 5 times faster, and no awful latency. The worse latency on the Caviar disks was 121588.99 ms, and on these disks it’s 6077.56 ms.
I can’t wait to get these disks over to the colo. If all goes well, it will just be a simple matter of shutting down the domUs, making a final copy from the old disks to the new disks, and then swapping the disks.
Full details below the cut.
Continue reading “That’s better!”