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Management of Software RAID basicaly involves adding and removing the faulty and failed drives from the array. To understand better consider following example. |
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In above example, the drives /dev/xvdb1, /dev/xvdb5, /dev/xvdb6 seems to be clean and healthy. This is RAID Drive, it means even on single drive it can run. |
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Now we are going to mark drive /dev/xvdb1, /dev/xvdb6 This can be done using following command. |
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After marking the drives as fail, we can check using following command. |
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Now let us remove the faulty drives from array. |
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And check the status. The status is still clean. It means the data is safe in the remaining drive. |
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Now assume that we have got new empty disks /dev/xvdb1, /dev/xvdb6 and we wish to add these disks to the array again. This task can be accomplished by –add option. Just check below. |
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Just after running this command, you can check the status of the drive. It should be rebuiding the data. |
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Now after some time you can check the status again. The array is back to normal and all disks are in sync mode. This is OK State. |
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That’s All ! Youd did it !! |
