On Friday August 12, a1426z@xxxxxxxxx wrote: > > Also, it would be nice to have something like: > echo 1 > /proc/md../../WriteBehindEnabled > echo 10 > /proc/md../../WriteBehindMaxDelayBeforeSync Something like echo 1 > /sys/block/md0/md/d4/write_behind or echo 10 > /sys/block/md0/md/max_write_behind are real possibilities. However "WriteBehindMaxDelayBeforeSync" doesn't make sense I don't think. When doing write behind, we don't delay the write at all. We just assume that it will take longer because it is on a slow device. The only limit is the number of outstanding write requests. Once this crosses a maximum, all further requests a fully synchronous until the number of outstanding writes drops below the maximum. NeilBrown - 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
