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Suppose I have a RAID 5 array consisting of 4 disks. If I buy two new disks later, can I add them non-destructively to the existing RAID 5 array?

It could be a hardware RAID controller or Windows Server 2003 software RAID.

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closed as not a real question by Ward, Skyhawk, splattne Jan 21 '12 at 8:36

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Per the ServerFault FAQ, hypothetical questions are off-topic here. – Skyhawk Jan 21 '12 at 8:03

Hardware RAID controller: Depends on the controller. Read the manual or check with the vendor. It's certainly possible.

Windows Software RAID: No

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Well, here we go - it depends. "Could be a car or a truck" is not specific, and this dependes on specific models. Most PROPER hardware raid controllers allow that - some cheap ones do not.

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