Software Raid – Harry Jackson http://127.0.0.1:8090 Parent, Painter, Programmer Sat, 03 Sep 2005 07:42:11 +0000 en-US hourly 1 https://wordpress.org/?v=7.1 Software Raid http://127.0.0.1:8090/software_raid_1.htm http://127.0.0.1:8090/software_raid_1.htm#respond Sat, 03 Sep 2005 07:42:11 +0000 http://www.hjackson.org/wp/?p=292 If you ever get this:

mdadm: error opening /dev/md0: No such file or directory

do:

ls -la /dev/md0

If the file does not exist create it as follows: (I am assuming your kernel already supports software raid)

mknod /dev/md0 b 9 0
]]> http://127.0.0.1:8090/software_raid_1.htm/feed 0 Software Raid http://127.0.0.1:8090/software_raid.htm http://127.0.0.1:8090/software_raid.htm#respond Mon, 22 Aug 2005 03:39:54 +0000 http://www.hjackson.org/wp/?p=287 Continue reading "Software Raid"

]]> I created identical partition tables on my two SATA disks or rather I made the/dev/sdb identical to /dev/sda because my current root file system resides in /dev/sda2 and /boot/ is on /dev/sda1
/dev/sda1 == 200MB /boot/
/deb/sda2 == 2GB /
/deb/sda2
/dev/sdb1
/deb/sdb2
/deb/sdb3
I then ran the following command.

mdadm --create --verbose /dev/md0 --level=1 --raid-devices=2 /dev/sda3 dev/sdb3

To make sure everything is running properly:

cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid5] [multipath]
md0 : active raid1 sdb3[1] sda3[0]
196996992 blocks [2/2] [UU]
[==>..................]  resync = 10.3% (20347136/196996992) finish=46.4min speed=63318K/sec
unused devices:

The next step is that when the resync is finished is to use lvm and set myself up some areas to work in.

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