"A month of sundays ago Neil Brown wrote:" > The first time you set a bit, record the current 'event' number with > the bitmap. I'm having some trouble with this part. Now, there ARE things called event_hi and event_lo in the current raid code, and you may be referring to these. Correct? > 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 And this is the same event_hi and event_lo? Now this all HAS to be done in md.c, vecause the read_disk_sb and write_disk_sb functions are not exported from there. 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