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--- linux:raid [2009/02/04 20:05]
a + how to know which drive to remove
+++ linux:raid [2009/07/06 01:30] (current)
193.164.137.52
@@ Line 5: / Line 5: @@
    * [[http://www.debian-administration.org/articles/424|growing ext3 partition on RAID1 without rebooting]]
    * [[:linux:lvm|LVM]]
 ===== Debian Woody + kernel 2.4 =====
-Good article (based on the one that has already been available on TNT) on this topic is on URL: [[http://www.rot13.org/~dpavlin/md-raid1.html]]
+Good article (based on the one that has already been available on old [[http://tnt.aufbix.org/old/linux/raid/|TNT site]]) on this topic is on URL: [[http://www.rot13.org/~dpavlin/md-raid1.html]]
 ===== Debian Sarge  =====
@@ Line 16: / Line 18: @@
+===== RAID5 =====
+**Creating a new one**
+   mdadm --create --verbose /dev/md0 --level=5 --raid-devices=3 /dev/sda1 /dev/sdb1 /dev/sdc1
+**Adding spare to RAID5**
+   mdadm --add /dev/md0 /dev/sdh1
-===== sw RAID recover =====
+**Fixing /etc/mdadm/mdadm.conf**
+   echo "DEVICE partitions" > /etc/mdadm/mdadm.conf
+   mdadm --detail --scan >> /etc/mdadm/mdadm.conf
+===== SW RAID recover =====
 **Copying the partition table from working HDD to new one**
@@ Line 44: / Line 56: @@
    echo check > /sys/block/md0/md/sync_action
+===== active (auto-read-only) =====
+   md0 : active (auto-read-only) raid1 sda1[0] sdb1[1]
+         1951744 blocks [2/2] [UU]
+to fix:
+   # mdadm --readwrite /dev/md0
 ===== Force the Linux kernel to re-read a partitiontable =====