Benjamin Schieder <blindcoder@xxxxxxxxxxxxxxxxxxxx> wrote: > I have made the experience that long tests slow down the raid to a point > where the system becomes unusable. Even though we're quite off-topic here with that since it's more SMART-related... this is at least unusual. I'm also running regular SMART selftests (short daily, long weekly) and usually they don't affect drive's performance very much. However, whenever I experienced massive slow-downs while selftests are running, this did always point to disk problems... too much (and strategic disadvantageous) reallocated sectors (keep an ear on the disks, hear them seek()ing :)), non-reallocatable sectors or just temperature (for example, WD drives tend to show a bad performance when getting too hot). regards Mario -- But after a while I learned the trick of speaking fast. You don't have to think any faster; just use twice as many words to say everything. -- Paul Graham - 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