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old SATA/150 as cache drive?


mkny13

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So I'm just about done preclearing mt first two 2tb drives in my new unraid server.  I'll eventually be adding another 4 1TB drives.  Here's the question--I found an old 160GB drive and I'm thinking of adding it as a cache drive but it's old enough that its only got a 1.5Gb/s transfer speed.  Would that bottleneck be enough to outweigh the performance gain of having a cache drive? All the large drives are SATA 3.0.  I could just try it out both ways but I'd like to save the time and effort if anyone already knows.

 

There's gigabit ethernet between my PC and the server, but I guess even that is slower than 1.5Gb/s, so maybe it won't matter.  Still, seems like a question worth asking...

 

Thanks,

Mike

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