On Fri, Dec 19, 2008 at 2:01 AM, <piergiorgio.sartor@xxxxxxxx> wrote: > In case of HD failure and resync, the md will start > the operations from the beginning to the end. > On the other hand, it would be wise to sync first the > used blocks (20% in the example) and later the others, > if necessary at all. > Because the array will get faster to a "safe state". > One idea/question is whether we can take advantage of the trim/discard commands added for SSD support to allow filesystems to tell MD which parts of the array it cares about. So for a lightly populated array we can try to treat free space as a second class citizen. -- Dan -- 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
