Hi I am using mdadm to manage my RAID arrays, but cant seem to find an easy to understand or concise explanation of what the different parameters mean when I write: cat /proc/mdstat in the terminal. The ones I can't even guess are: super bitmap pages chunk Could someone please point me to such a place that will tell me this, or if you are blessed with fortuitous amounts of time explain it to me in an email. My output when I write cat /proc/mdstat today is: -------- Personalities : [raid1] md0 : active raid1 sda1[0] sdc1[1] 488383864 blocks super 1.0 [2/2] [UU] bitmap: 2/466 pages [8KB], 512KB chunk md3 : active raid1 hdb4[0] sdb4[1] 183711232 blocks [2/2] [UU] md1 : active raid1 hdb2[0] sdb2[1] 104320 blocks [2/2] [UU] md2 : active raid1 sdb3[0] hdb3[1] 10490372 blocks super 1.0 [2/2] [UU] bitmap: 0/161 pages [0KB], 32KB chunk unused devices: <none> -------- Any help or pointers appreciated. I tried reading through the man pages but I am not any wiser. Or it could be that I just missed the relevant sections. -- Mvh Kenneth Aar Grafikern @: kenneth@xxxxxxxxxxxx Nett: http://www.grafikern.no Fasttelefon(IP-telefon): 62 11 17 01 Mobil: 92 89 99 89 Faks: 92 57 57 25 -- 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