RAID5 and different sizes of HDDs

Posted by MyFlower on Server Fault See other posts from Server Fault or by MyFlower
Published on 2012-09-12T02:46:38Z Indexed on 2012/09/12 3:39 UTC
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raid

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raid5

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hdd

Today I set up my first RAID ever. I decided to use RAID5, because I want as much space as possible, but I'm to afraid to use RAID0 because of possible data loss.

I have 4 0,5TB drives and in RAID5 I have about 1,36TB usable. That's fine by me.

Now I have a question. I'm thinking about purchasing a 2TB drive and can't figure out if it is possible to add it to this RAID (4*0,5TB + 1*2TB HDD) and how much space will I gain.

I hope someone can answer me, it would help a lot! Thank you in advance.

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