Rebuilding raid5 - possible without same HDD?

Zxcs

[H]ard|Gawd
Joined
Sep 11, 2004
Messages
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One of my HDDs in my raid5 array finally failed on me.

The original drives I had were:
3x Seagate Barracuda 7200.10 [ST-3500630AS] - 500Gb

Since they are pretty old, I'm having trouble getting hold of another one with the same model number. However, Seagate do have a newer 500gb drive out called the Seagate Barracuda 7200.12 [ST3500418AS]

My question is: would it be possible to use the newer Seagate 500gb drive to replace my failed old drive and rebuild the raid5 array?

Cheers
 
Yes, it will work. The RAID card only cares that it is the same capacity.
 
Thanks for the quick reply, just made my life a helluva lot easier!
 
This is not entirely true. It must be the EXACT same capacity OR GREATER by raw block count.

That means if you are replacing a drive with 65535 512 byte blocks, you can use a drive with 65535 blocks, or with 75235 blocks, but NOT one with 65534 blocks. Unfortunately these days, the only way to find out is trial and error. However, I don't honestly expect you would run into any problems with a 7200.10 to 7200.12.
 
This is why I have my Areca set to round down to the nearest gigabyte. I guess I should have been more specific.
 
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