Has anyone tried this.

Since we know if running Raid 5 and above, there is a fail safe where if one disk is destroyed, one can simply remove the drive and install a new one to replace it. So. How about this idea.

Say you have 6 drives in a system. 5 are in the array, 1 is an online spare. total capacity of 400 gig. (100 each)

So, what would happen if you removed drive 0 and replaced it with a 1 TB drive. Let the array rebuild and did the same for drives 5 - 1 thru 4. After which you would have 4TB worth of disk space and 1 TB of online spare.

Is this possible??

Maybe the system would not see the logical volume of 4TB but the logical volume of the original so the logical would need to be expanded or extended.

Anyone try this before??