>>>>> "John" == John Robinson <john.robinson@xxxxxxxxxxxxxxxx> writes: John> Essentially DIF on 32k blocks instead of 512 byte ones. But John> perhaps this is a bad assumption and MD/DM already optimises out John> whole-chunk reads and writes where they're not required (for very John> short, less-than-one-chunk transactions), and I've no idea whether John> this happens a lot. I haven't looked at the RAID4/5/6 code for a long time so I'm not sure whether they only write dirty pages or the whole chunk + parity ditto. Neil? -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
