Andrew Dunn <andrew.g.dunn.dod <at> gmail.com> writes: > What is the meaning of Preferred Minor : 2 ? Most of the time that array will get assembled as md2, but conflicts, other numbers and errors stemming from differently assembled arrays can occur. >From https://wiki.ubuntu.com/ReliableRaid: "Mdadm is setting up arrays according to unreliable superblock information. (Device "minor" numbers, labels and hostnames in superblocks are not sure to be unique and can be outdated.) This is combined with the idea of fixing the unreliability by limiting array assembly with information from mdadm.conf. (Defining PARTITIONS, ARRAY, HOMEHOST lines.) Consequently this forces setup tools, admins and installers to create mdadm.conf files and subjects them to the exact same reliability problems." I guess this conflict prone behavior is mostly legacy behavior from the past, or is there still an apparent reason to expose dynamic kernel internals like the minor to userspace instead of basing device node name on "md-UUID"? Regards, Christian -- 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