Wiki says: "Never NEVER never re-partition disks that are part of a running RAID. If you must alter the partition table on a disk which is a part of a RAID, stop the array first, then repartition. " - https://raid.wiki.kernel.org/index.php/Tweaking,_tuning_and_troubleshooting#Pitfalls Is it really true for situations like - I have 2x1Tb drives, which are already partitioned like /dev/sd{a,b}1 - 500mb, /boot & /dev/sd{a,b}2 - 20gb, / and are assembled in RAID1 arrays md0 & md1 accordingly. So, if I want to create one more RAID1 array , say md3 from the rest of the drives. So i take my cfdisk ,add new partition with some space 100-150mb from the end, do write changes & partprobe the drives, then creating new array. Is it bad? To be honest i'm doing this all the time and can't understand how this gonna hurt md. Neil and/or others, please clarify this. -- Best regards, [COOLCOLD-RIPN] -- 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