Articles, notes and random thoughts on Software Development and Technology
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Good RAID FAQ on Linux here.
Walkthrough on setting up a software RAID array here
Check RAID status:
<code>/sbin/mdadm --detail /dev/md0</code>
Or check with this:
<code>sudo cat /proc/mdstat</code>
This is what a good status will look like:
<code>
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md1 : active raid1 sdb5[0] sdc5[1]
1485888 blocks [2/2] [UU]
md0 : active raid1 sdb1[0] sdc1[1]
242709888 blocks [2/2] [UU]
unused devices: <none>
The [UU] (I think) indicates the status of both drives in the array, and both are Up
Removing drives: sudo mdadm /dev/md0 -r /dev/sdb1
Adding drives back to the array: sudo mdadm /dev/md0 -a /dev/sdb1