Merging two physical hard drives into one?

jaiizxvi

Distinguished
Nov 27, 2010
20
0
18,510
I have two hard disk drives that are 250GB each, and I would like to merge them both as one, so it will become as a 500GB without reinstalling the OS and buying some software. How can I do this in Windows 7?
 
Solution
Well without having to reinstall, that is quite impossible unless you have a spare drive to move your install onto. What you want is a RAID setup. There are two types of RAIDs that you would probably use. Either JBOD, which just combines the drives into a single partition, or a RAID 0 which will split the files across both HDDs, but if one drive fails, you lose everything on RAID 0, unlike JBOD.

icypyro

Honorable
Jan 23, 2013
171
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10,710
Well without having to reinstall, that is quite impossible unless you have a spare drive to move your install onto. What you want is a RAID setup. There are two types of RAIDs that you would probably use. Either JBOD, which just combines the drives into a single partition, or a RAID 0 which will split the files across both HDDs, but if one drive fails, you lose everything on RAID 0, unlike JBOD.
 
Solution

popatim

Titan
Moderator
What you want is to span the drives. Windows will then see the two drives as one large hard drive but this will need a seperate boot drive.
If you want two disk acting as one large drive and be bootable then you will need raid0 or jbod functionality. Theres a good change your motherbd is capable of both.