Rebuilding raid5 - possible without same HDD?

Zxcs

[H]ard|Gawd
Joined
Sep 11, 2004
Messages
2,007
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
 

Blue Fox

[H]F Junkie
Joined
Jun 9, 2004
Messages
11,784
Yes, it will work. The RAID card only cares that it is the same capacity.
 

Zxcs

[H]ard|Gawd
Joined
Sep 11, 2004
Messages
2,007
Thanks for the quick reply, just made my life a helluva lot easier!
 

AreEss

2[H]4U
Joined
Jul 5, 2005
Messages
2,180
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.
 

Blue Fox

[H]F Junkie
Joined
Jun 9, 2004
Messages
11,784
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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