"Neil Brown wrote:" > Rather than having several bitmaps, have just one. Normally it is > full of zero and isn't touched. > On hot-add, read the old superblock. If it looks valid and matches > the current array, and has an event counter of X or more, then ignore I've made a preliminary patch. Available as ftp://oboe.it.uc3m.es/pub/Programs/fr1-2.2.tgz This still needs to have the checkpoint (X) stuff put in, but I'm too tired to do it right now. What it has is 1) single bitmap 2) recognition of a "hotrepair" via the superblock on a persistent sb array and also 3) allow "hotrepair" on a nonpersistent sb array when a hotadd follows a setfaulty directlym without hotremove. I'll complete it tomorrow. I checked basic functionality (i.e. "it works", tm). Peter - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html