Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
What is the max performance anyone has seen with DRBD? With the default config I am seeing 80 MB/s write and 159 MB/s read. I googled around and found Florian's blog and set al-extents 3833, max-buffers 8192, unplug-watermark 128 and was able to get that up to 118 MB/s write and 180 MB/s read. At first glance that is not bad, but I have a decent two system cluster with 16 disk 3ware 3650SE-16ML. Now I am not trying for the 800 MB/s reads or 750 MB/s writes that 3ware talks about, but I should be able to do much better then this. Also note that the IPoIB gives me about 30% lower latency then point to point GIG. ><> Nathan Stratton CTO, BlinkMind, Inc. nathan at robotics.net nathan at blinkmind.com http://www.robotics.net http://www.blinkmind.com