Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Does anybody have any advice for tuning DRBD 0.7? I'm not seeing much out there except for some un-explained bullet points for a hacked version for use with OpenSSI, and I don't know how much of that advice is due to assumptions that are only true for OpenSSI. Some specific questions I have are: 1. What are the tradeoffs with changing al-extents? 2. Can I eck out more throughput by increasing sndbuf-size? Does that increase my write latency when using Protocol C? 3. What's a reasonable formula for determining max-buffers? Does increasing them imply I should increase something else too? 4. Does anybody know if the Areca raid cards like high or low unplug- watermark settings? 5. Does decreasing max-epoch-size reduce my write latency? Does anybody have any experience playing with the schedulers in the 2.6 kernel?