Figure 15.5
RAID Partitions
To add a previously unassigned partition to the selected RAID volume, first click the
partition then Add. Assign all partitions reserved for RAID. Otherwise, the space on
the partition remains unused. After assigning all partitions, click Next to select the
available RAID Options.
In the last step, set the file system to use as well as encryption and the mount point for
the RAID volume. After completing the configuration with Finish, see the
/dev/md0
device and others indicated with RAID in the expert partitioner.
15.3.2 Troubleshooting
Check the file
/proc/mdstat
to find out whether a RAID partition has been damaged.
In the event of a system failure, shut down your Linux system and replace the defective
hard disk with a new one partitioned the same way. Then restart your system and enter
the command
mdadm /dev/mdX --add /dev/sdX
. Replace 'X' with your partic-
ular device identifiers. This integrates the hard disk automatically into the RAID system
and fully reconstructs it.
Note that although you can access all data during the rebuild, you may encounter some
performance issues until the RAID has been fully rebuilt.
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