LVM vs RAID0 vs RAID "linear" - Combine 2 disks as one, data recovery?

Posted by leto on Server Fault See other posts from Server Fault or by leto
Published on 2011-01-13T13:22:41Z Indexed on 2011/01/13 13:55 UTC
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Filed under:

raid

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lvm

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disaster-recovery

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xfs

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data-loss

Hi there,

given two 2TB USB external disks that have to be combined to one 4TB volume and formatted with one big Filesystem (XFS), I have a small question to ask.

Does LVM provide better Data recovery, should one disk be unplugged/damaged by being able to recover the data of the still working disk or is everything lost?

I would appreciate a solution where only the data of one disk is lost and I can recover the content of the other with the usual filesystem/lvm/raid tools. Is that possible with LVM or RAID "linear"? This is for storing unimportant files that can be retrieved from backup, but I want to save time :)

Thank you in advance

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