RAID1

http://homepage1.nifty.com/Que/plamo/softwareraid/
sda1 -> md0 (sda1, sdb1)

raiddev /dev/md0
	raid-level      1
	nr-raid-disks   2        
	nr-spare-disks  0
	chunk-size     4
	persistent-superblock 1
	device	/dev/sdb1
	raid-disk	0
	device	/dev/sda2
	failed-disk	1

     4  19:14   modprobe raid1
     5  19:14   /sbin/modprobe raid1
     6  19:14   lsmod
     7  19:14   /sbin/lsmod
     8  19:15   source /root/.cshrc
     9  19:21   ls
    13  19:23   emacs /etc/raidtab
    14  19:28   bg
    15  19:28   rpm -q raidtools
    16  19:31   emacs /etc/raidtab
    17  19:31   bg
    18  19:31   rpm -ql raidtools
    19  19:33   fdisk /dev/sdb
    20  19:37   mkraid /dev/md0
    21  19:37   cat /proc/mdstat
    22  19:38   man mke2fs
    23  19:38   mke2fs -jc /dev/md0
    24  19:51   fdisk /dev/sdb
    25  19:52   mkdir /mnt2
    26  19:52   mount
    27  19:52   emacs /etc/rc.d/rc.local
    28  19:53   bg
    29  19:53   mount /dev/sda1 /opt
    30  19:53   umount /net/*
    31  19:53   ls
    32  19:53   mount
    33  19:53   ls
    34  19:53   mount
    35  19:53   ls /opt/
    36  19:54   umount /opt
    37  19:54   ls /opt
    38  19:54   mount
    39  19:54   df
    44  19:55   fdisk /dev/sda
    45  19:56   mount /dev/sda5 /opt
    46  19:56   ls /opt
    47  19:56   df
    48  19:56   ls /opt/archive/
    49  19:56   mount
    50  19:56   mount -t ext3 /dev/md0 /mnt2
    51  19:56   mount
    52  19:56   df
    53  19:57   cd /mnt2
    54  19:57   ls
    55  19:57   ( cd /opt/ ; tar cvf - . ) | tar xfBp - .
    56  20:07   history