I've been experimenting with write-mostly a bit more (I've used it off and on over the years), and I'm reminded of one thing I've always found curious. It doesn't seem to really stop reads from the slower, write-mostly disk. If I have one disk that can do 500MB/s reads and another that can do 25MB/s reads, I get 500MB/s reads in degraded mode without the slow disk, ~25-30MB/s for the clean array without write-mostly, and ~40-50MB/s reads with write-mostly flagged on the slow disk. Is this the expected behavior? -- 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
