Linux System Administration
Filesystems (Continued)
RAID Configuration - Starting an Array
If you didn't create an
/etc/mdadm.conf
file, you will need to specify additional information on the command line in order to start an array.
This command attempts to start /dev/md0 using the devices listed on the command line:
$ mdadm -A /dev/md0 /dev/sdb1 /dev/sdc1
Using mdadm -A in this way assumes you have some prior knowledge about how arrays are arranged.
It might not be useful on systems that have arrays that were created by someone else.
You may wish to examine some devices to gain a better picture about how arrays should be assembled.
The examine options (-E or --examine) allows you to print the md superblock (if present) from a block device that could be an array component.
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