> It is possible to get it fast than it is by increasing the > array's stripe_cache_size and also increasing the 'backup' size > that mdadm uses. mdadm-3.1.1 will try to do better in this respect. > However it will still be significantly slower than e.g. a resync. > > NeilBrown > Sorry, one more Q: I was able to find strip_cache_size, and already asked about stripe_cache_active (and if setting it to 1 was safe); but I can't seem to even find the 'backup' size variable mentioned anywhere. I'm going to start looking at the code next, but is it supposed to be in documentation? -- 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